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Sensors
Pressure Sensors
SSSSPS
A pressure sensor is a device composed of a pressure detector that determines the actual pressure applied to the sensor and, in addition, other elements that transform this information into an electrical output signal.
Pressure sensors are widely used in industrial processes or testing systems.
What is a vacuum sensor?
Within the pressure sensors are vacuum sensors whose function is to measure the pressure in a closed system and provide a signal corresponding to the measured pressure. These types of sensors are essential in applications where monitoring and control of vacuum conditions is required.
How does a vacuum sensor work?
A vacuum sensor works by measuring the pressure of gas or air in a closed system and comparing it to atmospheric pressure. The pressure difference is converted into an electrical signal that can be interpreted and used by control and monitoring systems.
What types of vacuum sensors are most used?
Pirani Sensors: They measure the thermal conductivity of the gas. Thermal conductivity changes with gas pressure, and the sensor measures this variation.
Cold Cathode Ionization Sensors (Penning): They measure the ionization of gas at low pressures using a magnetic field.
Diaphragm Sensors: They use a diaphragm that deforms under vacuum pressure, and the deformation is converted into an electrical signal.
Capacitance Sensors: Measure changes in capacitance due to the deformation of a diaphragm under pressure.
