1. Sensitive components

A component that directly senses the measured (mass) and outputs other quantities that have a definite relationship to the measured. For example, the elastic body of the resistance strain type load cell changes the mass of the measured object into deformation; The elastic body of the capacitive load cell converts the measured mass into displacement.

2, conversion element

Also known as sensing element, is the output of the sensitive element into a signal for easy measurement. For example, the resistance strain gauge of the resistance strain type weighing sensor (or resistance strain gauge) converts the deformation of the elastomer into the change of resistance; Capacitive load cell capacitors, the displacement of the elastomer into a change in capacitance. Sometimes some elements function as both a sensitive element and a transformation element. For example, the piezoelectric material of the voltage type weighing sensor, under the action of the external load, the output power at the same time of deformation.

3. Measuring elements

To transform the output of the converter into electrical signals, for further transmission, processing, display, record or control to provide convenience. Such as resistance strain type weighing sensor bridge circuit, piezoelectric type weighing sensor charge preamplifier.

4. Auxiliary power supply

Power the sensor's electrical signal output. General transducer need external chain power supply to work. Therefore, as a product must be marked with power supply requirements, but not as part of the weighing sensor. Some sensors, such as magnetoelectric speed sensors, because of his output energy is large, it does not need auxiliary power can work normally. So not all sensors need an auxiliary power supply.