Lock-In-Amplifier SR830

[ftosin]

I am new to labview. I have downloaded SR830 VI. I connected with Lock-in-Amplifier and noticed there was a communication. My problem is how to adapt the laboview VI to my need. I need the Lock-in-amplifier to measure resistive voltage and inductive voltage, which is shown on both channels, frequency and the amplitude of current and phase. I would like to have the measurement on a spread sheet. Additionally, I want to communicate with the Lock-in-amp by increasing the frequency and  measuring the above quantities again at same time. I would not mind any customize laboview VI.Thank you.

I have laboview 6.

Please help.

-ftosin

.

[Indiana]

Hi ftosin,

the first possibility is to download the instrument driver on NI´s-Homepage. In this vi´s are nearly all programming commands included.

If you do not want  to use this instrument driver i will recommend you to open the  SIMPLE GPIB.vi shipped with  labview (precondition is to have an NI-PCI-GPIB Card). Now you look in your programmers manual from stanford research system 830 for programming commands !
At first try to communicate with this device using command *IDN?.

If you have any further question, please let me know.

Indiana

Message Edited by Indiana on 07-07-2005 10:33 AM

[ftosin]

Thanks for your reply. I have downloaded the VI. I just do not know how to change it so that the datas will go on a spreadsheet.

[Indiana]

hi ftosin,

i´ve attached the instrument driver for you.
If you open the Toplevel vi "sr830vi" you can change what do you want to display on channel 1 and channel two (i.e. X,R,Y).
After setting this you can see the result of your measurement in "ch1 display" & "ch2display". You have to convert this received string in numeric values. Creating an 1-D Array of your values (continously query) you can save your 1-D Array with the File High-Level I/O vi "Write  to spreadsheet File.vi" in ASCII-File (i.e. *.txt).

If you have any further question, please let me know.

Regards

Indiana
 

[ftosin]

Indiana!
Thank you very much for your reply and the instrument driver attached. For the past few weeks, I have been trying to

change the display so that I could get the datas on a spread sheet. Unfortunately, I could not achieved any sucess. I should state that I am completely new to labview more so, the software here in my University is in Japanese and I am not so good in Japanese.

Any suggestion for me?

[Fumi.N]

Hi ftsoin,

If you are new to LabVIEW, LabVIEW User Manual maybe a good starting point. I am not sugguesting you should read it line by line, but you may want to picking out specific chapters that you would like to strengthen your knowledge in. English version of LabVIEW User Manual can be downloaded from URL below.
http://www.ni.com/pdf/manuals/320999e.pdf

If you have any questions using LabVIEW, please feel free to contact National Instruments, or post your questions on discussion forum.

Regards,
Fumihiko Nagahisa
Application Engineer
NIJ

[smart77]

Hi ftosin, I´m also developing an impedance spectrometer with a Lock in Amplifier, that is SR830, and Labview. I´ve already downloaded the drivers for this amplifier, these are the SR830.vi, with this program I already can comunicate with the SR830 by GPIB interfase, and even do graphs of the values that appear in the displays... but  I wanted to measure conductivity or impedance in function of the frequency, I´m trying to modify these drivers but I don´t get so.

I think you are trying something like this. Have you resolved this problem, could you help me about that?

[smart77]

Hi Indiana, I´m also developing an impedance spectrometer with a Lock in Amplifier, that is SR830, and Labview. I´ve already downloaded the drivers for this amplifier, these are the SR830.vi, with this program I already can comunicate with the SR830 by GPIB interfase, and even do graphs of the values that appear in the displays... but  I wanted to measure conductivity or impedance in function of the frequency, I´m trying to modify these drivers but I don´t get so...

Do you think I´ll can modify these drivers to represent  conductivity or impedance in function of the frequency or would be better to return to do the program from the beginning?

[smart77]

I´m just did so

[honig]

i've also tried to use the sr830.vi driver. i tried to record the data from the lock in using the fast command from the sr830 manual, but i keep getting errors. can someone tell me how to make the lock in the a talker and the computer a listener, i think that's the origin of the error. or if anyone did this already, i'll be happy to get some hints.