Dear Norliana,

You seek the definition of these terms used when describing sensor properties.

A sensor converts nonelectrical quantity into an electrical quantity say voltage or current .

Assuming the input quantity is x and the corresponding output quantity is y, then generally y= f(x). This function can be linear or nonlinear. The responsivity R is defined by R= y/x which is the large signal  gain of the sensor.

The sensitivity S of the sensor is ratio of incremental  change in y , dy corresponding to a specific incremental change in x, dx> Thus, S= dy/dx and so it is the small signal gain of the detector. If sensor function is linear both will be equal.

Best wishes

Dear Norliana,

You seek the definition of these terms used when describing sensor properties.

A sensor converts nonelectrical quantity into an electrical quantity say voltage or current .

Assuming the input quantity is x and the corresponding output quantity is y, then generally y= f(x). This function can be linear or nonlinear. The responsivity R is defined by R= y/x which is the large signal  gain of the sensor.

The sensitivity S of the sensor is ratio of incremental  change in y , dy corresponding to a specific incremental change in x, dx> Thus, S= dy/dx and so it is the small signal gain of the detector. If sensor function is linear both will be equal.

Best wishes

Hi Norliana,

can you elaborate the question i.e., where did you see these values and units.

Hye Ishtiaq,,,

You can search the values of responsivity and sensitivity in many articles. This article below is one of the example.

A wireless batch sealed absolute capacitive pressure sensor by

Akar, O.Akin, T.Najafi, K.