Lock-in Amplifier/ Phase shift
Hi,
in order to realise a lock-in amplifier I need to capture the Output of my amplifier stage, the generated Input sine wave and a 90 degree phase shifted version of it. Is it possible to realise the phase shift of the input signal in the Scope window?
Thanks in advance :)
Hi @Nurseda
The filter can be set programmatically using the Scope#.Math#.customFilter property.
This Logging/Script adjusts the filter based on frequency:
var hzSig = Scope.Channel1.measure("Frequency")
var hzRate = Scope.Time.Rate.value
var cFilter = round(hzRate/hzSig/2)
if(cFilter>200) cFilter = 0
var rg = [1]
for(var i = 0; i < cFilter; i++) rg.push(0)
Scope.Math1.customFilter = rg
In Script tool use Scope1 to identify the scope window.