Is it necessary to use both pressure gauges and pressure sensors in the pressure control of the hydraulic cylinder?
Pressure measurement basically uses a pressure sensorThe sensor parameters are determined according to your needsBasically grasp a few points you can determine a sensor1, rated range: you measured the actual pressure size, here should pay attention to, the choice of measuring range is better than your actual measurement range, to prevent instantaneous pressure overload damage sensor2 power supply: the current market power supply is basically 5V or 24V3 output signal: you can accept or collect signals, usually analog signals, such as 0-5V or 4-20mA4 precision requirements: you measure how much accuracy control you wish to achieve5 work environment: the main consideration is the work temperature and environmental temperature, at room temperature will not need to consider6 connection: the current market is conventional thread connection, such as G1/4, M20*1.5 and so on7 installation space: This is mainly for the size of the sensor requirements
Of course, I as an instrument of professional students learned to tell you that in the control, the actual pressure sensor into electrical signals or physical deformation such as to the pressure gauge shown above, one is to accept the pressure equipment, one is about to receive pressure into numerical you can read the equipment, because your estimate does not come out, of course the level is the same, not all the level you can see with the naked eye, such as opaque container
The difference between the two is that the pressure sensor is a device that accepts pressure and the pressure gauge is to strain the pressure to be applied.The pressure gauge (English Name: pressure gauge) refers to the elastic element as the sensitive element, measuring and indicating higher than ambient pressure meter is widely used, it almost all the industrial processes and scientific research. In the heat pipe network, oil and gas transmission, water supply system, vehicle repair and maintenance shop, and other fields can be seen everywhere. Especially in the control and measurement process, because the elastic sensitive element of mechanical pressure gauge has the characteristics of high mechanical strength and convenient production, the mechanical pressure gauge is widely used.The pressure sensor is one of the most commonly used sensor in industrial practice, which is widely used in various industrial control environment, involving water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military, petrochemical, oil, electric power, shipbuilding, machine tools, plumbing and other industries, following a brief introduction of some commonly used sensor principle and its application. Another medical pressure sensor.
