Pressure sensors are among the most common types of sensors. Traditional pressure sensors are primarily mechanical devices where the deformation of elastic components indicates pressure. However, due to their size and weight, they cannot generate electricity. The development of semiconductor technology has led to the emergence of semiconductor pressure sensors. These sensors are characterized by their small size, light weight, high accuracy, and good temperature performance. Especially with the development of MEMS technology, semiconductor sensors are evolving towards miniaturization, low power consumption, and high reliability.
What is the function of a pressure sensor?
Pressure sensors are widely used in industries such as hydropower, railways, intelligent buildings, production management, aerospace, petrochemicals, oil wells, energy, shipbuilding, machine tools, and pipelines. Below is an overview of the principles and applications of common sensors. There is also a medical pressure sensor.
What is its function?
1. Directly used to measure different pressures: air pressure, hydraulic pressure, hydraulic pressure (including hydraulic pressure), and different blood pressure levels in daily life;
2. Pressure sensors are used in automobiles, some elite motorcycles, and almost all internal combustion engines;
3. Liquid Level: The main field equipment used for measuring various liquid levels is the pressure sensor;
4. Most electronic weighing signals and vehicle weighing signals come from pressure sensors.
Pressure sensors are also used to measure acceleration in the aerospace industry.
Classification by application:
1. Weight system
Pressure sensing technology is increasingly being used in commercial weighing systems within industrial control technologies. In broader pressure control processes, it is typically necessary to collect pressure signals and convert them into electrical signals for automatic control. Pressure regulators based on pressure sensors are often referred to as electronic weighing systems. As a network tool, electronic weighing systems are becoming increasingly important in monitoring material flow in various industrial processes. Electronic weighing systems not only optimize production and improve product quality during manufacturing, but also store data streams from the production process and transmit them to data centers for inventory management and accounting.
2. Petrochemicals
Pressure sensors are among the most commonly used measuring instruments in the petrochemical industry for control automation. Almost all pressure sensors are used in large-scale chemical projects: differential pressure, absolute pressure, gauge pressure, high pressure, micro-differential pressure, high temperature, low temperature, and remote flange pressure sensors for various materials and special processes. The petrochemical industry's requirements for pressure sensors mainly focus on three aspects: reliability, stability, and high accuracy. This includes reliability and many additional requirements such as ratio, tire type, etc. The stability and high accuracy of pressure sensors are primarily guaranteed by the sensor's stability and measurement accuracy.
3. Environmental protection
In recent years, my country's ecological water treatment industry has developed rapidly and has broad prospects. The use of pressure sensors in water distribution and wastewater treatment provides the company with an important control and management tool to protect and ensure quality.
4. Pharmaceutical industry
With the development of the medical device market, the medical industry has placed more stringent requirements on the accuracy, reliability, stability, and operability of pressure sensors. Pressure sensors are more suitable for minimally invasive catheter ablation and temperature sensor measurement.
Currently, pressure sensors are primarily used for control and monitoring in various applications. In the automotive industry, MEMS pressure sensors are mainly used to measure fuel pressure, tire pressure, airbag pressure, and pipeline pressure; in the biomedical field, MEMS pressure sensors are mainly used in diagnostic and detection systems; in the aerospace industry, MEMS pressure sensors are mainly used to control the position of spacecraft; in industrial applications, MEMS pressure sensors primarily require three metrics: accuracy, power consumption, and reliability; in the consumer electronics sector, MEMS sensors are used in applications such as motion and fall detection, navigation data compensation, and gaming/human-machine interfaces. The automotive industry is the most traditional and largest market for MEMS pressure sensors.
