KM15-P02HMsensor Hydraulic sensor for excavator accessories

Product description

Most pressure sensors work with the piezoelectric effect. This is when a material creates an electric charge under pressure. This stress is usually pressure, but it can also be twisting, bending, or vibration. Pressure sensors detect pressure and can determine its magnitude by measuring electrical charge. The pressure sensor needs to be calibrated so that it knows what voltage or milliampere (mA) signal corresponds to what pressure. This is the basic "zero" and "range" calibration or minimum and maximum, which is a common job for maintenance personnel. There are three common types: the first is "gauge pressure". This is measured in terms of atmospheric pressure, which is usually 14.7 PSI. Above atmospheric pressure is "positive" pressure, below atmospheric pressure is "negative" pressure. The next category is "absolute pressure." In short, this is the pressure measured relative to the absolute vacuum. The absolute pressure of a complete vacuum is zero PSIa and increases from there. If you need to read pressure below atmospheric pressure, this is the type of sensor you want to use. The final type that is commonly monitored in the industry is "differential pressure". That's what it sounds like, the difference between two pressures, a measured pressure and a reference pressure. Specializing in the manufacture of intake manifold absolute pressure sensor, common rail pressure sensor, engineering hydraulic sensor, injection molding machine special pressure sensor, urea pressure sensor, brake pressure sensor, refrigerant pressure sensor, etc.