Liquid radar level moves up to 80 GHz
Narrower beams, smaller antennae and higher sensitivity handle compact, cluttered or non-conductive applications.
Noncontact radar level technology is widely used, offering accuracy to 2 mm, range approaching 200 meters, and tolerance of extreme pressures and temperatures with high stability, no moving parts and little maintenance. Steady improvements in signal processing that allow it to accommodate a broad range of vessels and process materials, along with reduced power consumption (including two-wire versions that operate on 4-20 mA) and lower costs have made it the first choice of many instrument specifiers for liquid level.
But conventional noncontact radar is restricted to 26 GHz, which leads to compromises in antenna size and beam angle that limit its ability to accommodate foam, buildup and spurious reflections from mounting fittings, tank…
Full Story
This month we introduce the newest three members of the Process Automation Hall of Fame. We also bust some myths about Foundation fieldbus, explore when to use guided-wave radar, and hear an argument in favor of multiple standards for the same technology. Access our issue now. Here it is in PDF format if you prefer that.