I designed a pressure sensor circuit for the AP series and used the difference between its two output voltages to calculate pressure, but now I want to replace it with the GP series without any modification to the circuit, and now I realize that the output pressure difference is so small that the circuit design is not satisfactory. Then I would like to ask, what is the difference between the GP and AP series in terms of circuit design, and is it also utilizing the difference between its two output voltages for pressure calculation?
Please see your new ticket reply's:
What about circuit usage, for example, if I amplify the two voltages from the sensor output and subtract them in phase, are there any modifications that need to be made to the circuit without taking into account the differences in code?
Hi ZIMO
See the difference between them:
The differential voltage output of the sensor is directly
proportional to the differential pressure applied.
The absolute sensor has a built-in reference vacuum. The
output voltage will decrease as vacuum, relative to ambient,
is drawn on the pressure (P1) side.
The output voltage of the differential or gauge sensor
increases with increasing pressure applied to the pressure
I hope this helps!
Thanks a lot!