A Pressure Transducer is a device or device that senses a pressure signal and converts the pressure signal into a usable output electrical signal according to a certain rule.
Pressure sensors are usually composed of pressure sensitive components and signal processing units. According to different test pressure types, pressure sensors can be divided into gauge pressure sensors, differential pressure sensors and absolute pressure sensors.
Pressure sensor is the most commonly used sensor in industrial practice. It is widely used in various industrial self-control environments, involving water conservancy and hydropower, railway transportation, intelligent building, production automation, aerospace, military, petrochemical, oil well, electric power, ship, machine tool. Pipes and many other industries, the following briefly introduces some common sensor principles and their applications. There is also a medical pressure sensor.
Heavy-duty pressure sensors are one of the sensors, but we rarely hear about such pressure sensors, which are commonly used in transportation applications by monitoring pneumatics, light-load hydraulics, brake pressure, oil pressure, transmissions, and Pressure, hydraulic, flow and level of critical systems such as truck/trailer air locks maintain the performance of heavy-duty equipment.
The heavy-duty pressure sensor is a pressure measuring device with a housing, a metal pressure port, and a high-level signal output. Many sensors are available in a round metal or plastic housing and are cylindrical in shape with a pressure port at one end and a cable or connector at the other end. These heavy duty pressure sensors are commonly used in extreme temperature and electromagnetic interference environments. Customers in the industrial and transportation sectors use pressure sensors in their control systems to measure and monitor the pressure of fluids such as coolants or lubricants. At the same time, it can detect pressure spike feedback in time, find system blocking and other issues, and instantly find a solution.
Heavy-duty pressure sensors have been evolving. In order to be able to be used in more complex control systems, design engineers must improve sensor accuracy while reducing costs for practical applications.
What are the common pressure sensors?Commonly used pressure sensors are models of high-temperature pressure sensors Explosion-proof pressure sensors Yancheng pressure sensors can not avoid errors: we must consider his comprehensive precision when choosing a pressure sensor, and what is the accuracy of the pressure sensor? In fact, there are many factors that cause sensor errors. Below we pay attention to four unavoidable errors, which is the initial error of the sensor.
First offset error: Since the vertical displacement of the pressure sensor remains constant over the entire pressure range, changes in converter diffusion and laser adjustment correction will produce offset errors. Second is the sensitivity error: the magnitude of the error is proportional to the pressure. If the sensitivity of the device is higher than the typical value, the sensitivity error will be an increasing function of the pressure. If the sensitivity is lower than the typical value, the sensitivity error will be a decreasing function of the pressure. This error is caused by a change in the diffusion process. The third is linearity error: this is a factor that has less influence on the initial error of the pressure sensor. The error is caused by the physical nonlinearity of the silicon wafer, but for the sensor with the amplifier, the nonlinearity of the amplifier should also be included. The linear error curve can be a concave curve or a convex curve load cell.
Finally, the hysteresis error: in most cases, the hysteresis error of the pressure sensor is completely negligible because the silicon wafer has a high mechanical stiffness. It is generally only necessary to consider the hysteresis error in situations where the pressure varies greatly. These four errors of the pressure sensor are unavoidable. We can only choose high-precision production equipment, use high technology to reduce these errors, and also perform certain error calibration at the factory.
Pressure sensor model
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