Pressure sensor is able to feel the pressure signal, and according to a certain law will be converted to the pressure signal available output of the electrical signal device or device.
Pressure sensors are usually composed of a pressure sensitive element and a signal processing unit. According to different types of test pressure, pressure sensors can be categorized into gauge pressure sensors, differential pressure sensors and absolute pressure sensors.
Pressure sensors are the most commonly used in industrial practice, and are widely used in a variety of industrial automation environments, involving water conservancy and hydropower, railroad and transportation, intelligent buildings, production automation, aerospace, military, petrochemical, oil wells, electric power, ships, machine tools, pipelines and many other industries.
01
Pressure sensors in the weighing system
In industrial control, pressure sensing technology is increasingly used in commercial weighing systems. In many control processes, it is often necessary to collect pressure signals, converted into electrical signals capable of automated control, this pressure sensor as the core element of the production of pressure control devices generally referred to as electronic weighing system, as a variety of industrial processes in the flow of materials in the on-line control tools in the present-day production is playing an increasingly important role in the production of chemical.
In the process automation control of weighing, the pressure sensor is required to not only sense the gravity signal, but also its performance must be reliable, dynamic response should be good and anti-interference performance should be good. By integrating the pressure sensor with the measurement line through the integration technology, the signal provided by the pressure sensor can be directly displayed, recorded, printed and stored by the detection system for feedback adjustment and control, so that the degree of automation control of the weighing process can be further improved.
02
Pressure sensors in the petrochemical industry
Pressure sensors are one of the most used measuring devices in the petrochemical industry for automatic control. In large-scale chemical projects, almost all applications of pressure sensors are included: differential pressure, absolute pressure, gauge pressure, high pressure, differential pressure, etc. ......
The demand for pressure transmitters in the petrochemical industry is mainly focused on three aspects: reliability, stability and high accuracy. Among them, reliability and many additional needs, such as: range ratio, bus type, etc., depending on the transmitter's structural design, machining process level and structural materials. The stability and high accuracy of the pressure transmitter is mainly ensured by the stability and measurement accuracy of the pressure sensor.
Corresponding to the measurement accuracy of the pressure transmitter is the measurement accuracy and response speed of the pressure sensor, and the stability of the pressure transmitter corresponds to the temperature characteristics and static pressure characteristics of the pressure sensor and long-term stability. The demand for pressure sensors in the petrochemical industry is reflected in the measurement accuracy, fast response, temperature characteristics and static pressure characteristics, long-term stability of four aspects.
03
Pressure sensors in the application of water treatment
China's environmental protection and water treatment industry, in recent years, has been rapid development, and the future is promising. In the water supply and sewage treatment process depends on the use of pressure sensors for system protection and quality assurance to provide an important means of control and monitoring.
Water treatment mainly includes water level monitoring of river water conservancy dams, sewage treatment and drinking water treatment, constant pressure water supply system and other aspects. According to the different ways of sensor installation, can be divided into built-in type and external type. Among them, the built-in type mainly adopts liquid level transmitter, and the external type mainly adopts industrial control pressure sensor.
04
Pressure sensors in the medical industry
Pressure sensors play an important role in medical patient history checking and minimally invasive surgery monitoring. Arterial blood pressure, intracranial pressure, and intrapulmonary pressure are all important parameter indicators in the medical process. In addition, the monitoring, treatment, and health care required for medical care are inseparable from the precise measurement of pressure sensors.
In addition to sophisticated medical and surgical facilities, medical supplies such as electronic blood pressure monitors, which are commonly used in daily life, are also measured autonomously and in real time by means of pressure sensors.
With the development of modern medical technology, the pressure sensors used in the medical industry have higher requirements in terms of precision, reliability, stability, volume, etc., which also promotes the vigorous development of medical pressure sensors.