Hello,
I am using a 1 INCH-G-BASIC pressure transducer in order to measure very small pressure changes. Looking at the datasheet the sensor can have an offset voltage @ zero differential pressure of +/- 10mV. The total output span of the sensor is nomially 7.0mV.
The outputs of the sensor are input to an AD623 instrument amp. I would like to be able to calibrate the sensor so that at zero differential pressure reads 0mV. I have connected potentiometers between the output pins of the sensor and Vcc in order to adjust the input to the AD623 to read 0V difference between the two pins.
I have attached a portion of the schematic which illustrates what I have tested.
This seems to solve my problem but I was just wondering if this was the best way to approach the problem.
Thanks,
Matt
I am using a 1 INCH-G-BASIC pressure transducer in order to measure very small pressure changes. Looking at the datasheet the sensor can have an offset voltage @ zero differential pressure of +/- 10mV. The total output span of the sensor is nomially 7.0mV.
The outputs of the sensor are input to an AD623 instrument amp. I would like to be able to calibrate the sensor so that at zero differential pressure reads 0mV. I have connected potentiometers between the output pins of the sensor and Vcc in order to adjust the input to the AD623 to read 0V difference between the two pins.
I have attached a portion of the schematic which illustrates what I have tested.
This seems to solve my problem but I was just wondering if this was the best way to approach the problem.
Thanks,
Matt
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