1300640081

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1300640081 includes pressure transducers and transmitters, which employ two principles of operation to convert pressure to electrical signals. The two principle types of operation include piezoelectric and capacitive. Piezoelectric transducers are most commonly used for industrial applications, while capacitive transducers are employed mainly for laboratory and low-pressure measurements.

The piezoelectric transducer is the most widely employed type of pressure transducer. It works on the basis of the piezoelectric effect, which is the ability of certain crystals to generate a charge in response to an applied mechanical force. This force is usually exerted by the pressure acting on a diaphragm. This diaphragm is coupled with a piezoelectric crystal, which generates an AC electrical signal proportional to the magnitude of the applied pressure. The generated AC signal is then amplified and converted to a proportional DC voltage signal.

Capacitive pressure transducers employ a different principle of operation. Here, a capacitor with 2 plates separated by a diaphragm is used. When the pressure is applied on the diaphragm, the capacitor plates move which causes a change in the capacitance. This change in capacitance results in a change in the current, which is proportional to the magnitude of the pressure. The current signal is then amplified and converted to a proportional voltage signal.

1300640081 are therefore pressure transducers and transmitters employed for pressure measurements. They both employ different principles, i.e., the piezoelectric effect and the change in capacitance, in order to convert the pressure into proportional electrical signals. Piezoelectric transducers are largely used in industrial applications due to their long-term stability, while capacitive transducers are largely used for low-pressure and laboratory measurements.

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