Introduction of negative pressure sensor

Pressure sensors are used to measure negative pressure or vacuum frequently encountered, frequent contact with negative pressure sensor will find generally negative pressure sensor measuring the maximum range is negative-100kpa or is-0.1MPA. But there are very few manufacturers say can be measured to-300kpa even lower. Here, I will explain the specific expression of negative pressure pressure sensor bar. In fact, this is the analysis of two different angles. Studied physics knows vacuum pressure-100kpa, so that the general pressure sensor measures the pressure is the lowest-100kpa is the basis of this, so the market is basically the lowest negative pressure Crank Sensor can measure-100kap, that - 300kpa Camshaft Sensor is how it happened? -300kpa fact not refer to atmospheric pressure, and physical stress on both a reference, you can understand, in a sealed box filled 300kpa high pressure gas, which sets stood a vacuum box, we put negative pressure sensor outside the big box to measure the pressure inside a small box, which would show a-300kpa, so that-300kpa pressure is produced. It is not with reference to atmospheric pressure. Understand this concept we chose negative pressure sensor can be helpful, so we do not choose the wrong pressure sensor, which is why we often help customers choose the pressure Car Sensors when the first use of the environment will ask him to ask his range how much. Only then will not choose the wrong pressure sensor.