On the pressure sensor and the difference between the pressure switch

Many people can not distinguish between pressure sensors, pressure switch and pressure switches difference, today we highlight some of the pressure sensor, pressure switch and pressure switch what is the difference?The pressure sensor is a pressure-sensitive element and a conversion circuit, the use of the measured medium pressure acting on the pressure-sensitive element to produce a slight change in current or voltage output. Sensors often need to be used in conjunction with an external amplifier circuit is detected from the pressure to complete control, display and other processes. Since the pressure Crank Position Sensors is a primary element, the pressure sensor feedback signal must be processed through the monitoring system, analysis, storage, control, allowing operation of industrial automation equipment and engineering controls, and more intelligent. Pressure relay is the use of fluid pressure to open and close electrical contacts electrohydraulic switching signal conversion element. For the relay when the system pressure reaches the set pressure, the issue of the electrical signal controlling the operation of components, to achieve the loading or unloading pump control to perform the operation of the sequence of components, the security protection and interlocking. It is the pressure - displacement transfer member and the micro-switch of two parts. Pressing force - displacement structure type conversion components of view, there plunger, spring, diaphragm and bellows-type four types. Where the structure of a single piston and dual piston plunger two. And can be divided into single-piston plunger, differential piston and plunger - leverage three types. Press contacts to points of single contact and double electric shock. Pressure switch according to the set size of the pressure reaches the set value, the automatic switching on or off the function. Pressure switch, pressure switch, only in your given pressure, open or close the switch, used for simple position control, all digital outputs! Pressure switch pressure switch can provide more than the output node or nodes type. Pressure Position Sensor output may be an analog signal or may be a digital signal, the post-processing convenience, the transmitter signal can become the standard for remote transmission.