Log in
Register
Home
Forums
New posts
Search forums
What's new
New posts
New profile posts
Latest activity
News
Members
Current visitors
New profile posts
Search profile posts
Features
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Menu
Install the app
Install
Reply to thread
Home
Forums
Pro Audio
Varsity
Well, THAT's Not Gonna Fucking Work!
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="Mark DeArman" data-source="post: 39820" data-attributes="member: 950"><p>Re: Well, THAT's Not Gonna Fucking Work!</p><p></p><p>Here are the measurements made with the Lock-In Amplifier. Or Hilbert Decomposition if you will. PXI-4462 for DAQ input running at 100kHz. Signal generated with PXI-5411 from 5.0Hz to 40kHz. Reference clock generated by PXI-6653 to guaranteeing phase alignment and triggering. </p><p></p><p>(A) The figures show the directly measured Amplitude. I forgot to set the output level to 1V.</p><p></p><p>(B) Lock-In amplifier gain difference from "loopback" to DriveRack 480 output and the phase difference. </p><p></p><p>(C) The THD for 5 harmonics from the Lock-In amplifier output signal. </p><p></p><p>(D) The "Delay" as derived from the phase.</p><p></p><p>Sorry I didn't process the data at all. Segments where the value jumps to zero is where LOCK was lost due to SNR or the wavelength being too long for the maximum recording window I set.</p></blockquote><p></p>
[QUOTE="Mark DeArman, post: 39820, member: 950"] Re: Well, THAT's Not Gonna Fucking Work! Here are the measurements made with the Lock-In Amplifier. Or Hilbert Decomposition if you will. PXI-4462 for DAQ input running at 100kHz. Signal generated with PXI-5411 from 5.0Hz to 40kHz. Reference clock generated by PXI-6653 to guaranteeing phase alignment and triggering. (A) The figures show the directly measured Amplitude. I forgot to set the output level to 1V. (B) Lock-In amplifier gain difference from "loopback" to DriveRack 480 output and the phase difference. (C) The THD for 5 harmonics from the Lock-In amplifier output signal. (D) The "Delay" as derived from the phase. Sorry I didn't process the data at all. Segments where the value jumps to zero is where LOCK was lost due to SNR or the wavelength being too long for the maximum recording window I set. [/QUOTE]
Insert quotes…
Verification
Post reply
Home
Forums
Pro Audio
Varsity
Well, THAT's Not Gonna Fucking Work!
Top
Bottom
Sign-up
or
log in
to join the discussion today!