Urea pump pressure sensorSensor technology is one of the signs of the development level of modern science and technology, and urea pump pressure sensor technology is an important branch of sensor technology. At present, various types of urea pump pressure sensors, such as diffused silicon, capacitive type, silicon sapphire, ceramic thick film, metal strain gauge type, etc. It is widely used in various industries and scientific and technological fields of national production. The following is a brief introduction to the characteristics and differences of some commonly used urea pump pressure sensors.

corrosion-resistant ceramicUrea pump pressure sensorWithout liquid transmission, the pressure acts directly on the front surface of the ceramic diaphragm, causing slight deformation of the diaphragm. Thick film resistors are printed on the back of the ceramic diaphragm and connected to form a Wheatstone bridge (closed bridge). Due to the piezoresistive effect of the varistor, the bridge generates a highly linear voltage signal proportional to the pressure and also proportional to the excitation voltage. The standard signal is calibrated to 2.0/3.0/3.3 mv according to different pressure ranges.

Diffused silicon urea pump pressure sensor. The pressure of the measured medium directly acts on the diaphragm (stainless steel or ceramic) of the sensor, causing the diaphragm to produce a micro-displacement proportional to the pressure of the medium, thereby changing the resistance value of the sensor. The electronic circuit detects the change and converts and outputs a standard measurement signal corresponding to the pressure.

Piezoelectric materials mainly used for piezoelectric sensors include time, potassium sodium tartrate and potassium dihydrogen phosphate. Among them, the time (silicon dioxide) is a natural crystal in which the piezoelectric effect is found. Within a certain temperature range, the piezoelectric performance always exists, but after the temperature exceeds this range, the piezoelectric performance completely disappears (this high temperature is the so-called "Curie point"). As the stress changes, the electric field changes slightly (that is, the piezoelectric coefficient is relatively low), so the time is gradually replaced by other piezoelectric crystals.

Urea pump pressure sensorFeatures: 1. The range and function of the sensor have been further expanded, and basic parameters and special parameters can be measured to meet the needs of different occasions. 2. The sensitivity and measurement accuracy of the sensor are also improved. For weak signal measurement, correction and compensation of various signals can be realized, and measurement data can be stored as needed. 3. Improve the stability and possibility of data measurement, reduce the interference of the external environment on the output of the urea pump pressure sensor, and can be measured selectively. 4. It can realize the self-diagnosis function, lock the faulty parts in time and accurately, and quickly identify the fault state, so as to solve some problems that cannot be realized by hardware. The signal output form and interface selection are more diversified, and the communication distance is greatly improved.

The above is about the urea pump pressure sensor of some knowledge points, I hope you can help.

Jiangmen Hengmin Intelligent Control Instrument Co., Ltd. is a pressure transmitter manufacturer, mainly engaged in oil pressure sensors, wall-mounted boiler water pressure sensors, urea pump pressure sensors, hydrogen pressure sensors, pressure calibrators, automobile pressure sensors, water pump pressure sensors, water pressure Sensors, intelligent pressure controllers, high pressure sensors and other products. Our company found in the research industry production activities that with the increasing popularity of the Internet of Things and intelligent manufacturing concepts, the demand for pressure sensors in my country has grown rapidly in recent years. In response to the needs of the era of intelligent manufacturing, our company has developed high-precision testing instruments and special production system equipment for pressure sensor manufacturers to help sensor manufacturers greatly reduce the labor intensity of testing, reduce the number of workers, improve product quality, improve production efficiency and reduce production costs.