Difference between monocrystalline and diffusion silicon pressure transmitters

Time: 2024-10-29

The working principle of diffusion silicon pressure transmitter is to use diffusion silicon sheet as piezoresistive element.

Project Overview

  I. Diffusion Silicon Pressure Transmitter

  The working principle of diffusion silicon pressure transmitter is to use diffusion silicon sheet as piezoresistive element, when the pressure changes, the diffusion silicon sheet is deformed by force, so that the resistance changes, forming a standard signal output. Diffusion silicon pressure transmitter is characterized by small size, inexpensive, suitable for general industrial areas and lower precision pressure measurement, but the temperature has a greater impact on its accuracy, need to be used within a certain temperature range.

  Second, monocrystalline silicon pressure transmitter

  Monocrystalline silicon pressure transmitter is the use of monocrystalline silicon micro-processing process to manufacture pressure sensors, and the use of piezoresistive effect to measure the pressure change. Compared with diffusion silicon pressure transmitter, monocrystalline silicon pressure transmitter has higher accuracy, better stability and reliability. It has less influence on temperature and can realize high-precision pressure measurement, which is suitable for industrial automation, chemical industry, oil and natural gas and other high-precision pressure rapid measurement field.

  Third, the difference between diffusion silicon pressure transmitter and monocrystalline silicon pressure transmitter

  1. different working principles: diffusion silicon pressure transmitter using diffusion silicon sheet as piezoresistive element, monocrystalline silicon pressure transmitter is made of monocrystalline silicon microprocessor pressure sensor. 2. different accuracy: monocrystalline silicon pressure transmitter is made of monocrystalline silicon micro-processing technology.

  2. different accuracy: monocrystalline silicon pressure transmitter has higher accuracy and stability, applicable to high-precision pressure measurement; diffusion silicon pressure transmitter for general industrial areas and lower precision pressure measurement.

  3. Different temperature effects: the accuracy of diffusion silicon pressure transmitter is greatly affected by temperature, while the monocrystalline silicon pressure transmitter has less effect on temperature.

  In general, diffusion silicon pressure transmitter and monocrystalline silicon pressure transmitter are common pressure sensors, but there are some differences in their areas of application and accuracy. In practical applications, the appropriate pressure transmitter should be selected according to the specific circumstances to ensure the accuracy and stability of the measurement.

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