Here you can find other works and versions related with this App. Most of them are just the same application but with slight modifications.
Harmonic Lock-in+PID (v0.3.22)
This version of the App doesn’t include the square Lock-in. Thats enable some free “physical surfece” of the FPGA to implement other features.
The new features are:
- Modulation added on outputs: In the Auxiliar tab of the Lock-in instrument
you can switch on/off the modulacion signal
cos_ref
to be added to the signal already choosen for each port. A-1
value menasoff
and any other value is the relative amplitude respecto to8191 int == 1 Vpp
. - Enhanced amplification: The
X
andY
signals can now be amplified byx524288
(x512k
). This enables the posibility to measure signals that are far below the resolution limit (~1V/8192
)
The lower physical surface load may correct some cross-talking problems between signals that happened on some devices in the Lock-in+PID App.
The source code can be found in github rp_lock-in_pid_h repository.
The last realese version (v0.3.7):
Old releases:
Tar version | Default | lock_in+pid_harmonic-0.3.4-1-devbuild.zip | | Debug | lock_in+pid_harmonic-0.3.4-1-devbuild_DEBUG.zip | | Reload | lock_in+pid_harmonic-0.3.4-1-devbuild_RELOAD.zip |
ZIP version | Default | lock_in+pid_harmonic-0.3.4-1-devbuild.tar.gz | | Debug | lock_in+pid_harmonic-0.3.4-1-devbuild_DEBUG.tar.gz | | Reload | lock_in+pid_harmonic-0.3.4-1-devbuild_RELOAD.tar.gz |
- older releases in github
- ChangeLog in the project page
Harmonic Lock-in+PID HF (for High Frequency)
This is a copy of the project avove but with a oscillator than goes from 60 Hz to 1 MHz.
[https://github.com/marceluda/rp_lock-in_pid_h_hf | github code] |
Dummy Simulator(v0.1): A peak function simulator for testing purposes
This App simulate a peak-response from a system scanned through a control signal. You can use ir to test locking procedures for Lock-in+PID or Harmonic Lock-in+PID App.
- In one RedPitaya device (RP1) you use Lock-in+PID
- In other one (RP2) you load the simulator
- Connect RP1
in1
to RP2out1
and RP1out1
to RP2in1
- Now you can make a Ramp-Scan from RP1. RP2 will response on
out1
as you where scaning an spectrum with one peak. - On the simulator you can see de actual input, the response of the system, and the also a copy of the peak signal
- The App lets you configure the peak height, width, position over the ramp-scan, add white gaussian noise and a linear baseline.
The source code can be found in github rp_dummy_simulator repository.
Download v0.1 from: dummy_simulator-0.1.0-1
Harmonic Lock-in+PID with 3 PIDs
Some improvements made by stefanputz, accesible in github repo.