Which agilent driver to download for writing c applications

What sets the nm cutoff? Detector says it goes to nm. I know efficiency is low past nm, but is this the only reason that you spec it to nm, or is there a filter or some other reason it does not work past nm? Yes, we can offer a customized version of CCS for nm.

I will contact you directly to quote this device. Very disappointing. Did I get a faulty system? I have contacted you directly for troubleshooting. There seems to be non-random noise inherent in the spectrometer signal. Is this something that can be removed through calibration or background correct? If background correct is used can you provide specific instructions how to use it correctly? I have contacted you directly to provide assistance and detailed information about the spectrometer.

I am interested in buying this product but have a quick question about how robust this product is against electromagnetic interference. I have owned a number of Ocean Optics broadband spectrometers and none of them seem to be able to survive the computer no longer recognizes them after a few shots.

That being said, I have a number of cameras and computers in the environment that have had no problems whatsoever. I will contact you directly for assistance. I need the spectral response profile for the spectrometer -- product of grating efficiency and detector response.

If the grating is peak at nm, the response at nm may be pretty poor Also, need the sensitivity specified in units of Watts of input light needed to give full scale signal at some wavelength with some exposure duration. I have contacted you directly to provide requested information. Is the amplitude correction file pre-installed in the spectrometer?? I was expecting it provided as a separate file in the installation CD but I couldn't find it.

This spectrometer covers the wavelength range from to 1, nm. But why the correction is done only at the range from to 1, nm?? Then, how can I measure a reliable emission spectrum in nm range?? Yes, the data of intensity calibration is stored in a non-volatile memory in the CCS. Measurements of the spectral intensity at nm will suffer from fluctuations of the responsivity in the CCD, because they are not compensated by Intensity Calibration.

I will contact you for further assistance. Refer to the amplitude correction in the software that takes the wavelength dependent responsivity into account, does it include the multiplication with lamda in their correction spectra as relative number of photons? If no, do you have any suggestion for this kind of calibration? Thank you very much! The amplitude correction is not an absolute calibration, so it cannot return spectra in Watts or photons per time.

The spectra returned by the amplitude correction are still in arbitrary units. I have contacted you directly to provide further assistance. Hi, I am seeing some type of interference fringes in a spectrum of incoherent white light Tungsten-Halogen source.

Can you send me more info about the post from I think it might be relevant. I have contacted you directly to provide further details about this effect. I have checked the intensity correction. What is the unit after correction? Or other relative way to these measurement purpose? The amplitude correction feature in the software will take the wavelength dependent responsivity of the CCS spectrometer into account. This way e. The spectrum is however still in arbitrary units and not absolutely calibrated.

Unfortunately, it is not possible to measure absolute optical powers with the CCS spectrometers. Is the spectrometer can measue both or I need to buy a power meter for power measurement? Unfortunately, it is not possible to measure absolute optical powers with our CCS-Spectrometer. In the "Specs" tab on this webpage, there is a spectrum of CCS spectrometer with linear fiber bundles. Why the spectrum's shape is similar to summation of sine curve?

I think that light source may not emit sine curve shape light. These spectra are looking sinusoidal because of etalon effects interference. I have contacted you directly to provide more detailed information. Sorry for not leave any contact information.

When I calculate the movement of the wavelength is like I calculate the average value of all the spectrum. That operation results in a number in pixels. I only want to transform that pixel number into a value in nanometers. I have contacted you directly to discuss your issue in more detail. When I track the signal in pixels everything is ok but when I track in nanometers using GetWavelengthData I am not able to calculate correctly.

I would like to know if it exists an equation or expression to convert pixels to nanometers. The command "Get Wavelength Data" will return an array which contains the wavelength corresponding to each pixel. The spectral data corresponding to this array will be returned by "Get Scan Data". Please note that the command "Get Raw Scan Data" returns a slightly larger array because it contains additional pixels used for dark current correction which are however not part of the actual spectrum.

In this case the correlation between pixel, wavelength and spectrum wouldn't be correct and could cause issues in your algorithm. Unfortunately, you didn't leave any contact information in your feedback. Please contact us at europe thorlabs. Hello, i need 2 detectors 1. I need to detect fruits and vegetables.

I will contact you directly to assist you in defining more accurate requirements and to find a proper solution for your application. Unfortunately, with our CCS-Series it is not possible to measure spectra with an absolute power distribution and the beam diameter. We only can provide a relative intensity calibration for our compact CCD spectrometers.

I will contact you directly to discuss your application and requirements in more detail. Hello, I would like to have more information. This is a response from Stefan at Thorlabs.

The spectral accuracy specifies how precise one center wavelength here nm can be resolved. This is not valid for the whole operating wavelengths range. We have no exact data for the whole wavelength range but at nm we expect the accuracy spec to be 0. I have contacted you directly to check your application in detail and if a LOAN unit might be an option to check if the CCS meets your requirements.

We have the same problem with this device as described by b. How we can get rid off the overlaying oscillations. Best regards Torsten. I have contacted you directly to offer a free amplitude correction of your unit. Is it possible to extend the upper wavelength limit to work with the spectrometer until nm I could live with reduced resolution?

Thank you for your inquiry, we can offer a special CCS with a working range nm. I have contacted you directly to discuss in more detail. I have it plugged into my laptop and the ready light isn't lit. Thank you for contacting us and please apologize the problems you face with your CCS spectrometer. I have contacted you directly to troubleshoot this in detail. We are interested in the range higher that It would be nice to have it till losing the UV part, which we anyway don't need.

I know, the sensitivity of the CCD is quite bad in that region, but our another spectrometers still can detect the radiation there and the signal is quite strong. Thank you in advance. Can I get the spectral amplitude correction data as a graph or table? Thanks for bringing our attention to the grating efficiency. We will fix that. We have question does the software perform a normalization on CCD spectral sensitivity or grating sensitivity? I have contacted you directly to provide screenshots where this feature can be found.

It would be very useful for my work to be able to perform peak track analysis on multiple traces simultaneously and I cannot currently find a way to do this. Does the OSA software allow this and I'm simply just missing it? If the capability does not exist, I think it would make for a great software update.

Thank you very much for your feedback. In the current design of the OSA software it is unfortunately not possible to open more than one peak-track window. We will review this request and check if we can add this feature in future versions. I will contact you directly to discuss this workaround in more detail.

Is it possible to access the spectrometer from Matlab or to stream the spectral data, such it can be accessed by Matlab?

Thank you and best regards Klaus. I'm trying to develop a LabView program for the CCS, but the software download links are very confusing. When I install the software located in the 'Software' tab on this webpage, all the references in the downloaded product are for the OSA rather than the CCS. There is also a LabView example included in the driver llb container. I will ask our Technical Marketing team to make sure that we note in all files that this software is made for both devices to avoid any confusion.

I will contact you directly to check if there are any further questions. One question: 1 All using the tlcss 64 bit libary: Timing experiments reaveals that reading from the spectrometer takes exactly twice as long as the set intregration time. What going on? I would expect a constant time plus the intregration time. Maybe something wrong in the libary? The reading from the spectrometer taking twice as long as the integration time has to do the with the CCD reading out process.

This is nor error in the library but wanted as tests have shown for getting best results in terms of amplitude and intensity reading the internal capacitance has to be charged same time as it gets discharged when illuminating the chip. Therefore it always takes twice the integration time to read the spectrometer. I would like to get a contact regarding the possibility of having the CCS calibrated together with an integrating sphere, that I have.

Frans Ravn. Hello, I have an issue which may come from me misusing the machine. I use a CSS with the provided optical fiber.

The oscillations match perfectly from one light source to the other, which suggests strongly that it comes from the measure. Could you tell me if there is something wrong or how I should correct for it? Removing the fiber does not change the results.

This a response from Stefan at Thorlabs. The oscillation you describe and which can be seen on the spectra you are refereeing to come from the Etalon effect which can build up between the CCD sensor and the glued safety glass. With our current generation of spectrometers this effect can be turned off by using the amplitude correction function. By turning it on in the OSA software the oscillations should no longer be visible.

I will contact you directly to troubleshoot your case in more detail. I would like to know about the measurement range of CCS, I need to know the maximum level in dbm or watts of the optical input. I have a white light source with an Output Power of mW. Is it possible to be measured? Thank you very much for your inquriy. We do not have a specification for the Maximum Input in Watts because this will change depending on several factors, including the wavelength, integration time and gain settings.

However, mW will most likely saturate the CCD even at the lowest integration time. In this case, I would recommend attenuating the light source, for example with an ND filter. I will contact you directly to discuss your application and the specifics of the light you will be measuring. I found that the spectrometer response depends on the polarization direction. Does anyone know if it comes from the fiber or the spectrometer itself? Is there a way to avoid this? I ask because this phenomena makes it really hard to normalize my measurments.

Moreover, I also noticed that my signal is average the noise is well reduced when I gently agitate the fiber. I am not familiar with fiber, can someone give me an explanation about this too? The grating built in the spectrometer is polarization depended and by agitating the fiber you can visualize that. In general you would need to use a polarization maintaining PM fiber which is a single mode fiber to make repeatable measurements.

If you couple polarized light into a multimode fiber you will get arbitrary polarized light at its end. But with our spectrometer you need higher intensities than you can achieve with single mode fibers, the device is designed to be used with multimode fibers.

I will contact you directly to discuss your application in more detail. I have two Thorlabs CCS spectrometers, one serial no. M was bought in and the other serial no.

M was bought in My original plan was to monitor a background using one spectrometer and substract it from the reading of the other spectrometer in real time using the program Thorlabs OSA provided. It seems this is not possible because the x-ranges of the two spectrometers are slightly different. Spectrometer M has a range of nm and spectrometer M has a range of nm and the program cannot compute the difference between the two spectra.

My questions are: 1. Are the slightly different ranges due to the fact that one CCS spectrometer is older than the other? Or would any two spectrometers have slightly different ranges?

Is there a way round this problem using the software provided or must I write my own labview program to deal with it? Every spectrometer is slightly different in its range, this comes from the alignment and its dependency on the optics used which also have some tolerances. To your second question. It is unfortunately not possible to subtract two traces with different x-axis ranges or different lengths in the current version of the OSA software.

We plan to add this possibility in a future version of the software. I will contact you directly to provide you with more information and discuss your application in detail. I need more informations: 1. Serves to analyze sample solutions quantitatively?. What accessories are needed? You can measure metamerism index? I would like to measure PL spectra on the range of - nm from single defects in solid state samples using the compact CCD spectrometer coupled to an home build confocal microscope.

Would be suitable for to use this device for my application? Since we have not tested our spectrometers in very low light conditions, like those in your application, it is difficult to predict if the sensitivity and resolution would be sufficient. We would be happy to provide a loan so that you could test the spectrometer for two weeks in real experimental conditions.

I will contact you directly to discuss further details. Response from Jeremy at Thorlabs: We will update our webpage to have this specification. Hi, can you also provide spectrometers in the wavelength range nm? Thanks and best regards, Julian. A response from Julien at Thorlabs: Thank you for your request! Unfortunately we currently only have those compact spectrometers with Si CCD chips that can go slightly above nm. I will ocntact you directly to understand what the exact field of application is and what the requirements in terms of spectral resolution and power handling are to see if we could work on offering a customized solution.

Could this device be used for measuring reflectance reflection type of transmission? As in, can I do the reflectance measurement but click on the 'transmittance' button? Does that valid?

Thanks in advanced! We will contact you directly to help you set this up for your experiment. The amplitude calibration was performed with the included fiber. For the best accuracy we recommend to use the fiber which comes with the spectrometer. However, if you are using the same kind of fiber it will not cause significant differences. We can also offer a special item where the required fiber is included.

I will contact you directly with more detailed information. Thanks for your response on the cosine correctors. Throughput is not the same like the transmission spectrum. I'd like to know how much of the light will actually be coupled into my CCS when I use the cosine correctors. It will depend on the angle of incidence and the wavelength I suppose.

Thank you very much for your reply. By considering the angle dependency curve and the transmission spectrum which are given in the manual it is possible to calculate the throughput. I hope this will help. Please contact me at europe thorlabs. The transmission spectrum of the cosine correctors can be found in the spec sheet. You can always contact me at europe thorlabs. Hi, I have a question about the possibility of the intensity calibration by user, because the interference-like pattern always appears.

I can see the option "amplitude correctioin mode". Is this the such caribration mode? If so, I want to know how to use it. For an intensity calibration the device has to be returned to Thorlabs. It is not possible to perform this by yourself. I will contact you with detailed information.

Hello, after some time my ccs spectrometer stopped responding for integration times equal and smaller than 0,1 ms it just dont show any spectrum in splicco or labview.

I would like to get back to 10us. Is there any simple way how to fix it? A response from Julien at Thorlabs: Thank you for your feedback! I will contact you dircetly to set up the return. Hi, I am currently using the CCS spectrometer for my spectral measurements Intensity vs wavelength. What units are being used for intensity? How do I get the Irradiance Wm-2nm-1? Thanks, Nicholas.

The spectrometers are not intensity calibrated by default but we can offer a special calibration. I will contact you with more detailed information. I would also like to obtain a spectral response curve for calibration of my CCSM, if possible. Do I assume correctly that the grating contained in the spectrometer is identical to the product GR? If so, could I also obtain the spectral response of the grating alone as csv data?

If you only consider the responsivity of the sensor and the grating the results will contain errors. We offer an intensity calibration for our spectrometers and this would be the best way to get accurate results.

I will contact you directly to provide more detailed information. The spectrometers we offer are not corrected with regard to the wavelength depending sensitivity. We offer a special intensity calibration and I will contact you with more detailed information.

Recently started using CCS with provided Splicco software. Program stops working every time I attempt to load a previously saved. I didn't experience difficulties when loading a saved. You can try to download and install the latest software to solve this issue. I will contact you directly for more detailed information.

Thank you in advance for your kind replay. We are able to provide a relative intensity calibration but the absolute measurement of the spectral power will depend on the experimental details coupling efficiency, fiber diameter, Best regards, Nahid. Response from Jeremy at Thorlabs: The minimum detectable power is difficult to quantify accurately as it will depend both on the central wavelength being measured as well as the spectral width of the signal. I will contact you directly to discuss about your application.

This is a response from Thomas at Thorlabs: Thank you very much for your inquiry. We are currently working on a solution for this issue and should be able to offer a software update that will fix it within two weeks. However, we got a rather annoying and confusing result: the obtained spectra depend on the triggering mode. We simply measured light from a CW Xe lamp, and changed the triggering mode. We expected that the spectra should be identical as long as we kept the integration time the same.

It was not the case. Substantially different from 1 and 2. I tried changing the integration time, but the situation is the same: there is always a broad background for the "SW trigger continous" mode. Are we doing something wrong? Please advise. Thank you for your help.

Response from Jeremy at Thorlabs: We are currently trying to reproduce the effect that you are seeing. We will get in contact with you directly regarding this. I couldn't find the answers in the manual.

Thanks a bunch. We will add this information to our product presentatiopn on the website. A resposne from Julien at Thorlabs: Thank you for your feedback! As you already noticed, there is indeed currently no possibility to average the data directly from the driver. The only way is to perform the averaging within labview. I would be happy to send you a VI doing this. I will contact you directly to discuss the exact requirements. I need a VI Labview to use the averaging mode.

It is very important for me. I will try to make a VI for that, but I believe that Thorlabs can help the users of this spectrometer with more labview Vi's. This is a response from Thomas at Thorlabs: Thank you very much for your feedback. We can offer you an intensity calibration for the spectrometer. Best Regards, Thomas. This CCS spectrometer is really usefull and easy to use but the interferences that appear on broadband lightsources are a problem for some of our measurements the same interferences exist with other sources but can't be seen on a single shot.

An easy way to recalibrate the spectrometer would be really usefull. The CCS is able to measure spectra from broadband light sources like tungsten or halogen. If the spectrometer is not intensity calibrated you will see interference. If this causes problems we can offer an intensity calibration.

If the spectrum doesn't vary linearly with integration time than you are probably not using the latest software version 4. This should solve this issue. I will contact you directly regarding the intensity calibration. The CCS cannot measure broadband spectra such as tungsten or halogen.

This is a big limitation. Furthermore, the spectrum doesn't vary linearly with integration time. This is another major limitation.

Hi Thomas, thanks for the response. So what can we do to increase the sensitivity of the spectrometer at around 0. So far we haven't been able to get any discernable readings from further than a 5 cm away? A response from Thomas at Thorlabs: Thank you for your inquiry. Because of the high divergence of LEDs it is very hard to collimate and focus them into a fiber.

Due to the high sensitivity of the spectrometers it should be possible to couple light into the fiber by positioning the LED directly in front of the fiber. If the power output of the LED is high enough you will be able to measure a spectrum. This approach is the most straight forward and is probably as effective as using lenses for collimation and focusing.

Thank you for your feedback, we are really happy to hear that the product works well for you! Thank you for taking the time to point out this issue. The resource address for the CCS is 0x, which is what you find in the sample program. As you said, the CCS for example is 0x In the next release, which we will supply by the end of next week, there will be a comment in the sample program which tells you the resource codes of each spectrometer type.

Our intended application involves measuring the distribution of radiant intensity of indoor LED lighting solutions. Is there an attachment or lens you can recommend for measuring this through the fiber optic cable?

Excellent product. Started writing a C app using the sample code. A response from Julien at Thorlabs: Thank you for your inquiry. This problem could be related to an issue with the PCB of the spectrometer or could also only be a noise issue. Could you please contact us at techsupport thorlabs. Based on this information, we would then be able to decide what the best way to proceed is. This is the same commenter as just before. I know that these "Feedback" sections probably weren't intended to be used for seeking help with utilizations of the products, but I appreciate that the employees at Thorlabs have been responsive regardless.

For those reading who are considering purchasing the product: it's worked flawlessly in my research group for several years, and aside from the issue I listed below which is likely trivial I've had no issues with it. Hello, In using a modification of the Labview code supplied with the device, I've noticed that several of the values of the relative response vs wavelength are negative not too far from zero and mostly in areas of no signal.

How should these negative values be interpreted? A response form Julien at Thorlabs: This problem might be related to the fact that the resource ie. This can happen for instance if the splicco software is already running and connected to the spectrometer. Another possibility is that the labview application was not closed properly or finished without using the function close.

In this case the resource is not freed automatically at the end of the application and remains blocked. I will contact you directly to see what the problem could be. Hello there! In implementing the Labview code accompanying the spectrometer, the following error crops up: "CCSseries Initialize. Any experience with this problem? A response from Julien at Thorlabs: Thank you for your inquiry!

This functionality can be easily implemented in the example application through the use of the function getWavelengthData. This function returns a 2D array that contains the wavelength for the respective pixel numbers so that you can use it to convert the pixel numbers into wavelengths. I'm currently setting up a Labview program to run some statistics on collected spectra, and am using the backbone "Sample" program that you all were awesome enough to type up.

If no modification are made, the program outputs the spectrum in units of pixels as opposed to wavelength in nm. In the SPLICCO prorgram, there's an option to switch between those two options, and also a choice as to whether to use a factory-defined conversion from pixels to nms.

The option doesn't seem to be available on the Labview Sample. Where can I find it? Thanks and cheers. Response from Jeremy at Thorlabs: Thank you very much for your feedback. The absolute intensity calibration is not a feature we offer at the moment in our CCS spectrometer series.

Follow an example of using Queues to provide structure and control to a program. A connection to an instrument is referred to as instrument control session. If you have changed the palette views from the default settings, some palette paths described in the course may not match your settings. They are documented in their respective programming manuals. Therefore, we recommend that you exit MultiVu before running any of these VIs. This Labview programming language tutorial covers Labview basics,data type supported in labview and example implementation using labview.

That way your software will be more dependent to your applications and you can control almost everything. The example below loads the library created above and uses one of its functions to create and show a widget. The emphasis on part 1 is on using an In this episode I talk about about how the GPIB protocol works and a little bit of the history. Page 2 Lab Exercises: A. NI LabVIEW is an award-winning development environment optimized for engineers and scientists creating test, measurement, and control applications.

For example, some instruments give you a choice for the type of interface. Le cable et de chez Agilent Instrument. Use these examples as programming references and an easy way to start using your instrument. That is, it follows the strain released in It also can be used for general programming purposes. For example software version can be higher but i prefer old, light IO library and full Labview version :. LabVIEW is a graphical programming software language.

The following example shows how to establish the connection and commu-nicate with the instrument. This example uses A modified version of this example exists on your system. Ensure the proper VISA resource name is selected. The graphical language is named "G"; not to be confused with G-code. A GPIB system is a form of network, but there's always one "controller in charge". This APx project and related files demonstrates how to run an external program from APx The project file calls the Goldwave audio editor program, so you will either need to install Goldwave, or substitute another audio player with a command line interface.

Accompanies the kb article "Running an external program from APx," which gives a complete explanation. Automated self-test for all APx Series instruments. Run this test to confirm proper operation and before sending an instrument in for service. Allows an APx Series Analyzer to measure acoustic noise or sound in the environment, taking the place of a handheld sound level meter. Using the analyzer adds the capability to perform spectrum analysis, and to visualize the character of the sound signal over time.

The latter is especially valuable when measuring non-steady-state sounds, such as a pulsating alarm. Technote , included, describes the theory and how to use the utility. Discusses writing and reading good audio specifications. Guidelines are provided, then key specifications for two classes of audio device are examined for correct expression and form, with examples of real-world specs for comparison. Switch-mode audio power amplifiers are becoming increasingly popular due to their smaller size, lower weight, and improved efficiency.

Their advantages are obvious in low power battery operated personal audio players and laptop computers. However they are also progressively displacing more traditional linear designs in mainstream applications such as home entertainment systems, automotive sound systems, and professional installations where high quality audio is important.

Measuring the performance of switch-mode amplifiers presents some new and unique challenges. They inherently generate ultra-sonic artifacts and spurious signals with slew rates that can provoke non-linear behavior within the input stages of high quality audio test and measurement equipment.

Absolutely worthless and inaccurate results can result unless effective measures are taken to prevent this non-linear behavior. Written by Bruce Hofer. This reference handbook is a practical, hands-on guide for workers in all phases of the audio field. It covers basic tools and techniques, common environments for audio testing, application of these techniques to common audio devices, the typical ranges of performance to expect in different devices, and a glossary of terms and key specifications used in audio measurement.

Automatic Gain Control AGC is a signal processing technique typically used to limit the audio dynamic range in applications ranging from hearing aids to broadcasting. Test settings can also be customized when using the IEC based measurement. The plugin is compatible with any model APx Series analyzer and requires APx audio measurement software, version 4. USB driver update for users of APx v2. Apply this update if you encounter the following symptoms: 1 During installation of APx you receive one or both of the following warnings:.

Download this update and run it after installation of APx and then power-cycle the attached APx analyzer. A look at some of the important features needed in an acoustic audio analyzer, the problems you may encounter in non-ideal testing environment, the needs of good production line testing, and the range of measurements and results that should be produced.

Explains the various ways to view, measure, and manipulate digital metadata, primarily over the HDMI interface. In the case of Dolby Digital Plus, compliance testing includes well over 1, individual measurements which, if performed manually, could easily take over a week.

The APx solution reduces that time to hours. More importantly, because APx generates the test sequence with all appropriate limits, there is no time wasted on recreating a test methodology or deciphering test requirements. Back to Top Features Options Specifications.

NET Driver 4. APx Python Sample Code 1. Toggle navigation Configuration Files. Toggle navigation Datasheets. APx Datasheet 3. Perceptual Audio Test Datasheet Toggle navigation Latest Software.

APx Measurement Software 4. This download is suitable for most users. If Microsoft. NET version 4. For PCs that do not have.

NET 4. APx Measurement Software with. This download includes the Microsoft. NET Framework version 4. APx What's New 5. APx What's New 6.