Measurement of liquid level

摘要: A water level measurement system for use with a pressurized power plant boiler comprises tubular pressure vessel attachment to one end of the such that in is same as boiler. The has central rod-like conductor which together forms coaxial RF waveguide. pair spaced reference discontinuities are provided above maximum water, so an pulse injected into waveguide reflected successively by both and surface water. can then be determined independently changes dielectric constant vapor it, from ratio between time intervals first second pulses third pulses. mounted at top way seal ceramic insulator.