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Which sensor measures the pressure relative to perfect vacuum?

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Which sensor measures the pressure relative to perfect vacuum?

(a) Absolute pressure sensor

(b) Gauge pressure sensor

(c) Vacuum pressure sensor

(d) Differential pressure sensor

I got this question during an interview.

Enquiry is from Pressure Sensor in portion Sensors of IOT

1 Answer

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Best answer
Correct choice is (a) Absolute pressure sensor

For explanation I would say: Pressure sensor can be classified in terms of pressure ranges they measure, temperature ranges of operation, and most importantly the type of pressure they measure. Absolute pressure sensor is a sensor that measures the pressure relative to perfect vacuum.

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