Hi all,
I have scintillation probe and I connect charge sensitive amplifier which produce positive analog pulses 0v-5v with periode 200us.
So the problem is that, how can I adjust the pulses to cut the upper and lower pulses from one adjusment window"not window comparator"
I try with op-ampt adn I reach to control the lower pulses from lower level e.x with simpe connection on op-amp with Vref (-v) (inverting input ) power the lower level and signal to +v input . With thiw connection I have on output only the upper pulses from Vref .
but I try days to cut the upper pulses from upper level but I can not yet !!! only with Zener diode I try to cut the upper pulses but I want to control with trimmer if it can because I'm not sure the window which I need
what can I do? have some one an idea?
I upload and the images
blue color channel show the output
yellow color channel show the input signal from charge sensitive amplifier -all pulses from 0v to 5 v
John
I have scintillation probe and I connect charge sensitive amplifier which produce positive analog pulses 0v-5v with periode 200us.
So the problem is that, how can I adjust the pulses to cut the upper and lower pulses from one adjusment window"not window comparator"
I try with op-ampt adn I reach to control the lower pulses from lower level e.x with simpe connection on op-amp with Vref (-v) (inverting input ) power the lower level and signal to +v input . With thiw connection I have on output only the upper pulses from Vref .
but I try days to cut the upper pulses from upper level but I can not yet !!! only with Zener diode I try to cut the upper pulses but I want to control with trimmer if it can because I'm not sure the window which I need
what can I do? have some one an idea?
I upload and the images
blue color channel show the output
yellow color channel show the input signal from charge sensitive amplifier -all pulses from 0v to 5 v
John
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