Race Technology

Hi all,

Any suggestions for how to obtain the basic voltages/calibration data required to setup an 'unknown' pressure sensor?
I understand with a temperature sensor I'm able to connect power to the sensor, heat the sensor, then manually check the temperature with an external device and measure/record voltage readings for different temperatures.

How would I go about this for Oil pressure?

Kind regards in advance.

Bill

Hi there,

The easiest way is to find the part number of the sensor, and find out the range it operates in. e.g. 0 - 10 bar. WIth this in mind, the supply voltage to the sensor will be the maximum value. Therefore if using a 5v reference supply 10 bar = 5v

Take a voltage reading from the sensor when no pressure is applied to it to get your zero value.

The more difficult option, is applying a known pressure value to the sensor and taking a voltage reading from it.

Oil Pressure sensors are linear, therefore you only need 2 values to get an accurate reading. However something to bare in mind is that values not captured in the calibrated area may not be as accurate. e.g. if you applied a known pressure of 5.0bar and the sensor is 10bar maximum, it may be possible for values of 5-10 bar to not be as accurate as the other data.

Hopefully this helps,
Kind Regards,
RT Support (SK)

That's brilliant, thank you Race Technology.