Capacitaspressura sensoremis a pressure sensor that uses capacitance as a sensitive element to convert the measured pressure into a change in capacitance value.This kind of pressure sensor generally uses a circular metal film or a metal-plated film as an electrode of the capacitor.When the film is deformed by pressure, the capacitance formed between the film and the fixed electrode changes, and an electrical signal that has a certain relationship with the voltage can be output Per mensuræ circuit.capacitive pressura sensoriis ad Suspendisse distantia variabilis capacitive sensoriis, quae dividitur in uno capacitive pressores sensoriis et differentiale capacitive sensoriis.
The single capacitive pressure sensor consists of a circular membrane and a fixed electrode.The film deforms under pressure, thereby changing the capacity of the capacitor,The sensitivity is roughly proportional to the area and pressure of the membrane and inversely proportional to the tension of the membrane and the distance from the membrane to the fixed electrode.Another type of fixed electrode takes the shape of a concave spherical surface, and the Diaphragma est tensio planum certa circa periphery.This genus est idoneam ad mensuræ humilis pressura et habet altum overload capacity.a una-capacitive pressura potest reducere in pressura area diaphragmas, ita ut ad redigendum diaphragmam potest esse ad amplio sensit, ita ut ad redigendum diaphragmam potest esse ad amplio sensit, ita ut ad redigendum est ad amplio sensit, ita ut ad redigendum est in diaphragmam ad emendare, ut ad redigendum diaphragmam potest esse ad amplio sensit. Est etiam integre packaged cum variis ultricies et tutela sectiones et amplifier circuits ad amplio anti-jamming capacity.This sensorem est idoneam ad mensuræ dynamic princeps pressura et ad Telemetry aircraft. Sunt etiam genera unius capacitive pressura sensoriis ut tortor tortor type (id tortoram genus) et stethoscope genus.
The pressure-receiving diaphragm electrode of the differential capacitive pressure sensor is located between two fixed electrodes, forming two capacitors.Under the action of pressure, the capacity of one capacitor increases and the other decreases accordingly, and the measurement result is output by the differential circuit.Its fixed electrode is made of metallized layer on the concave curved glass surface. The diaphragm is protected against rupture by the concave surface when overloaded.Differential capacitive pressure sensor has higher sensitivity and better linearity than single capacitive pressure sensor, but it is more difficult to process (especially difficult to ensure symmetry), and it cannot achieve isolation of the gas or liquid to be measured, so it is not suitable for working in corrosive environments. sexus aut impudicitiis in fluidi.
Post tempus: Apr-07-2022