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silicon pressure transmitter

time£º2019-07-22 16:27    source£ºoem pressure sensor

  Diffused silicon pressure transmitter

Diffusion silicon pressure transmitter definition

     When a silicon single crystal material is subjected to an extremely small strain by an external force (generally at 400 micro-strain), the electronic energy level of its internal atomic structure changes, resulting in a dramatic change in its resistivity (a G-factor mutation). The resistance made with this material also changes greatly. This physical effect is called the piezoresistive effect. Using the principle of piezoresistive effect, using integrated process technology through doping, diffusion, along the characteristic crystal orientation on the monocrystalline silicon wafer, strain resistance is made to form the Wheatstone bench, utilizing the elastic mechanical properties of silicon materials, in the same cut Anisotropic micromachining on silicon material creates a diffusion silicon sensor integrating force sensing and force-electricity switching detection. The sensor is matched with an amplifying circuit and related components so that it outputs a standard signal and forms a complete diffusion silicon pressure transmitter.

SC308 series diffusion silicon pressure transmitter uses imported international advanced ceramic sensor technology, coupled with high-precision electronic components, assembled by the strict requirements of the process. It is compared to the use of a conventional pressure transmitter. There are two distinctly different technical differences: one is the use of emerging high-precision ceramic materials for the measuring element; the other is that there is no intermediate fluid in the measuring element and it is completely solid.

SC308 series diffusion silicon pressure transmitter pressure transmitter has reliable operation, stable performance, easy installation and use, small size, light weight, high performance-cost ratio, and can be widely used in various positive and negative pressure measurements. The imported diffusion silicon or ceramic core is used as the pressure detection element. The sensor signal is converted into a 0-10mA or 4-20mA unified output signal by a high-performance electronic amplifier. Can replace the traditional remote transmitter, Hall element, differential transmitter, but also with DDZ-II and DDZ-III type transmitter performance. It can be used with various types of moving coil indicators, digital transmitters, and electronic potentiometers. It can also be used with various automatic adjustment systems or computer systems.

Diffusion silicon pressure transmitter works

 The pressure of the measured medium directly acts on the diaphragm of the sensor (stainless steel or ceramic), so that the diaphragm generates a micro displacement proportional to the pressure of the medium, so that the resistance value of the sensor changes, and the change is detected by the electronic circuit, and The conversion outputs a standard measurement signal that corresponds to this pressure.

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