Glass micro melting pressure sensor

In order to achieve long-term stable collection of pressure signals under harsh working conditions, we have conducted in-depth research and adopted a glass micro melted silicon strain gauge. Through high-temperature sintering, it is combined with a stainless steel diaphragm to form a product without hysteresis, high sensitivity, good stability, and good process controllability, which is suitable for large-scale mass production.
Silicon strain gauges are sintered at high temperatures on stainless steel diaphragms, with four equivalent resistors forming a bridge. When there is gas or liquid pressure on the other side of the stainless steel diaphragm, the diaphragm undergoes slight deformation, causing changes in the four strain gauge resistors sintered on the diaphragm. When the bridge is powered by voltage, a voltage output proportional to the pressure is generated.
The differential output of the bridge needs to undergo temperature compensation and normalization processing to ensure that the compensated sensor output is between 0-100mV. Then, after signal amplification processing, it is converted into standard signals for industrial use, such as 4-20mA or 0-5V. The circuit part needs to be packaged and soldered to adapt to industrial environments.
The micro melting series products are an ideal choice for accurately collecting pressure values in high-frequency harsh environments. The principle is to use high-temperature glass to melt micro machined silicon varistor strain gauges on stainless steel isolation diaphragms. The glass bonding process avoids the effects of temperature, humidity, mechanical fatigue, and media on the adhesive and materials, thereby improving the long-term stability of sensors in industrial environments, and also avoiding the P-N junction effect that may occur in traditional micro mechanical manufacturing processes. Glass micro melting pressure sensor is a widely used type in the micro melting series

High cost-effectiveness;
Compact structure, no welds;
The product technology is mature, with high production efficiency, and its production capacity can be increased by about 40% compared to ordinary pressure sensors;
Multiple signal output modes, customizable production, can make your system design more lightweight and simple;
Multiple pressure interfaces and electrical connection methods are available, completely replacing similar foreign products;
Superb anti damage capability: 5X standard range, minimizing the possibility of membrane damage.