全球雷达液位变送器市场报告(2014-2018年)
Level measurement, commonly termed as tank gauging, is an instrumentation technique used to identify the height of the fluid or solid within a containing vessel. Level measurements can be either contact based or non-contact based. Contact-based level measurement can be done mainly through devices such as magnetostrictive sensors, vibratory probes, hydrostatics and magnetic floats, whereas non-contact-based level measurement can be primarily done through ultrasonic, radar, laser, and optical devices. Radar technology is mainly used for the detection of level in continuous level measurement applications. Radar level detectors basically include a transmitter, a receiver, and an antenna. The detector uses electromagnetic waves usually in microwave X-band range, which is around 10 GHz. These transmitters are classified into two broad categories depending on their application: radar level transmitters for ITG and radar level transmitters for process level.