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Industry Information
Brief introduction of radar level gauge
2011-11-15 10:31:14

  坚持自 主创新,以及 产品结构 的调整等一系列的措施,已经使我国的仪器仪表行业取得了较快的发展,而且经过常年的探索,国内企业已经总结出一套自己的研发、生产、销售为一体的 产业结构 At present, China's instrumentation industry adheres to a series of measures such as independent innovation and adjustment of product structure , which has made China's instrumentation and instrumentation industry develop rapidly. After years of exploration, domestic enterprises have concluded a set of their own , Production and sales as an integrated industrial structure . 超声波液(物)位计 校验仿真仪无纸记录仪智能射频导纳料位仪 等都已经取得了很好的效果。 Some high-tech products such as radar level gauges , ultrasonic liquid ( level ) level gauges , calibration simulators , paperless recorders , intelligent RF admittance level meters , etc. have achieved good results. The following introduces the radar level gauge;

      的工作原理是 发射能量很低的极短的微波脉冲通过天线系统发射并接收。 The working principle of the radar level gauge is to transmit and receive very short microwave pulses with very low energy through the antenna system. 以光速运行。 Radar waves travel at the speed of light. The running time can be converted into a level signal by electronic components. A special time extension method ensures stable and accurate measurements in a very short time . Even if the working conditions are more complicated, there are false echoes. The latest micro-processing technology and debugging software can accurately analyze the level echoes . 首先 微处理器对此信号进行处理, 然后就可以 识别出微脉冲在物料表面所产生的回波。 The input antenna receives the reflected microwave pulse and transmits it to the electronic circuit. The microprocessor first processes this signal, and then it can identify the echo generated by the micropulse on the surface of the material. The correct echo signal recognition is completed by intelligent software, and the accuracy can reach millimeter level.

雷达物位计 适用于对液体、浆料及颗粒料的物位进行非接触式连续测量,适用于温度、压力变化大;有惰性气体及挥发存在的场合。 The intelligent radar level gauge is suitable for non-contact continuous measurement of the level of liquids, slurries and granules. It is suitable for occasions with large changes in temperature and pressure; inert gas and volatilization. 采用微波脉冲的测量方法,并可在工业频率波段范围内正常工作。 It can adopt the measurement method of microwave pulse and can work normally in the range of industrial frequency band. The beam energy is low, and it can be installed in various metal, non-metal containers or pipes without harming human body and the environment.

Note: The measurement range is calculated from the point where the beam touches the tank low, but in special cases, if the tank low is concave or tapered, the measurement cannot be performed when the level is below this point. If the medium has a low dielectric constant, when the tank is at a low liquid level, the tank can be seen low. At this time, in order to ensure the measurement accuracy, it is recommended to set the zero point at a position of low C. It is theoretically possible to measure the position of the antenna tip, but considering the effects of corrosion and adhesion, the final value of the measurement range should be at least 100 mm from the antenna tip . For overflow protection, a safety distance can be defined to be attached to the dead zone. The minimum measurement range is related to the antenna. Depending on the concentration, the foam can both absorb microwaves and reflect them, but it can be measured under certain conditions.