High precision - piezoresistive pressure sensor - supply [Weckway]

sensorThe end is made of high elasticity steel film, and the head is filled with low viscosity silicone oil, which plays a role in transmitting pressure and insulation. The sensitive component silicon cup is immersed in silicone oil, and the measured pressure is transmitted to the silicon cup through the steel diaphragm and silicone oil. The integrated resistor of the silicon cup is connected to the insulation terminal through metal leads, and there are various compensation resistors on the printed circuit board.

This type传感器Due to the use of integrated circuit diffusion technology, the ruler can be made very small. For example, some foreign manufacturers produce sensors with a diameter of only 1.5mm~3mm, which can be used to test local pressure and greatly improve dynamic characteristics (operating frequency can range from zero to several kilohertz). Due to the direct diffusion of resistance onto the membrane without an adhesive layer, it has low drift, high sensitivity, and good repeatability. At present, there are pressure sensor products with various specifications ranging from 0.014MPa to 140MPa in foreign countries.

Pressure group pressure传感器Due to its simple structure. The advantages of small output signal, high sensitivity, good dynamic characteristics, high precision, high frequency response, and light weight make it suitable for high-frequency dynamic testing and widely used in aviation, metallurgy, meteorology, and medical fields.