Desktop gas pressure measuring instrument/gas pressure measuring instrument price

Gas pressure measuring instrumentWorking principle
Gas pressure measuring instrumentIt is composed of a gas pressure sensor and a digital display instrument.
1. 0~20 MPaThe principle of pressure measurement:
0~20 MPaThe pressure sensor is a silicon piezoresistive pressure sensor manufactured using micro machining technology. Measurable corrosive media. Sensor chip mounted onTOOn the base, and welded to it by resistance welding316 On a stainless steel casing.316 A small amount of silicone oil is filled between the diaphragm on the stainless steel casing and the sensor chip. Silicone oil transfers pressure between the diaphragm and the piezoresistive sensor. The pressure sensor can be connected to the measured gas pipeline and container, and can be designed and manufactured separately according to the user's requirements.

2. 0~1MPaThe principle of gas pressure measurement:
measure0~1MPaThe pressure sensor is an ion implantation type high output pressure sensor that integrates temperature compensation and signal amplification. Its principle is based on measurement0~1000KPaThe pressure range is proportional to the sensor outputDC0.2~5VThe linear relationship between voltage values.
3. -5~-100KPaThe principle of pressure measurement:
measure-5~-100KPaThe pressure measurement sensor is an ion implanted silicon pressure sensor, which is a high output pressure sensor that integrates temperature compensation and amplification; The pressure measurement range is proportional to the output voltage value of the sensor. By utilizing its characteristic of measuring absolute pressure, various gas negative pressure values (vacuum degree) can be measured.
The digital display integrator is a microcontroller that converts the analog electrical signals output by the three types of pressure sensors into digital signalsA/DConvert into a digital signal and send the pressure value to a four digit digital display.
In addition, the microcontroller can store various constants, coefficients, and other data information related to arithmetic processing into the microcontrollerEEPROMSave in *. The above data information can be saved after a power outage. After the power supply is restored, these data information will be automatically restored.

Gas pressure measuring instrumentPurpose and Characteristics
Gas mass flow meterSuitable for precise measurement of gas quality. It converts the measured gas mass flow rate into the corresponding gas volume flow rate or gas mass flow rate under standard conditions.
Gas mass flow meters have the characteristics of high accuracy, long service life, good repeatability, wide flow range, stability and reliability. The method of measuring gas flow rate by testing gas quality is currently in place in China.