What is an absolute pressure sensor?
A sensor that can sense absolute pressure and convert it into a usable output signal. Usually, one side of the diaphragm or diaphragm box of the pressure-bearing device is sealed in a vacuum as a reference vacuum chamber, and the pressure to be measured is introduced into the other side. The pressure is determined by the deformation of the diaphragm or diaphragm box. Noen vakuummålere og barometre som registrerer atmosfærisk trykk er absolutte trykksensorer.
1. Industrial field
MEMS absolute pressure sensors also have important applications in the field of industrial automation. For example, in fluid processing equipment, the flow volume and quality of the fluid can be monitored and controlled in real time by measuring the absolute pressure in the pipeline. It can also be used in industrial equipment such as pressure control instruments, vortex flowmeters and liquid level measurement. Pressure measurement in industries such as petrochemicals, power, and pharmaceuticals, pressure measurement in negative pressure equipment and vacuum equipment, osv.
2. Automotive field
MEMS absolute pressure sensor is widely used in the automotive industry. It can be used in engine control systems. By real-time monitoring of the absolute pressure in the intake pipe and combustion chamber, it can help the engine control system achieve more precise injection control, improve fuel combustion efficiency and reduce emissions. It can also be used in tire pressure monitoring systems (TPMS), which can provide accurate tire pressure data to ensure driving safety and fuel efficiency.
3. Medical field
MEMS absolute pressure sensors play an important role in the biomedical field. It can be used to measure the internal pressure of an organism, such as blood arterial pressure, myocardial pressure, osv. These pressure data can be provided to doctors for clinical diagnosis and treatment plan formulation. MEMS absolute pressure sensors can also be used as force sensors in robotic surgical instruments to provide accurate surgical force data.
In short, the application field of absolute pressure sensors is very wide, and they are gradually becoming one of the indispensable measurement tools in many fields.
