Use of capacitive level meter

　　In actual measurement, a variety of natural factors can cause errors, and the advanced measurement system of Meiante, including temperature sensors and software functions, can automatically compensate for the influence of temperature. The capacitive level meter measurement system should select a built-in temperature sensor combined with the probe and an external temperature sensor separated from the probe according to actual requirements. A more accurate measurement system can place an echo reflection reference at a specific position away from the probe to generate a reference echo to compensate for the temperature effect. The effectiveness of this method depends on the accuracy of the placement of the echo reflection reference. The capacitive level meter measures the height of the liquid level by measuring the change in capacitance. It is a metal rod inserted into a liquid container, with the metal rod as one pole of the capacitor and the container wall as the other pole of the capacitor.

　　电容式液位计电极组是一种液位非接触测量用的传感元件。至少由单稳态触发器、为前者提供触发脉冲的脉冲发生器、有源低通滤波器三部分电路组成。这三部分电路均由集成电路与少量阻容元件构成。传感器无机械可动部分，结构简单、可靠;精确度高;检测端消耗电能小，动态响应快;维护方便，寿命长。由于采射频技术和微机技术解决了传统电容式物位计漂移大、标定难、怕粘附的难题，可广泛应用于各行业中液体及固体料仓料位的连续测量。特别是在高温、强腐蚀、强粘附、粉尘大的环境下进行测量，是其它类型的物位计无法比拟的。可应用于安全系统中接触过程的部分材质为耐腐蚀性材质。侧装式电容式液位计的最显著特点是液体介质与指示器完全隔离，所以在任何情况下都非常安全、可靠、耐用、而且各种型号的液位计配上液位报警、控制开关，可实现液位或界位的上、下限越位报警、控制或联锁，配上静压式液位变送器或干簧。该系列侧装式磁翻柱液位计可广泛适用于电力、石油、化工、冶金、环保、船舶，建筑、食品等各行业生产过程中的液位测量与控制。

　　Capacitive level gauges are small in size and easy to remotely transmit and adjust. They are suitable for measuring the level of corrosive and high-pressure media. They measure the height of the liquid by measuring the change in capacitance. In the design of water treatment plants, this type of level gauge is often used to measure the level of water collection wells to control the automatic start and stop of drainage pumps.