Linear position sensors for power plants

Macro Sensors, headquartered in New Jersey, USA, has designed a high temperature and mild radiation resistant series of linear position sensors for use in the position measurement of nuclear steam and gas turbine control valves within power generation plants. Constructed of stainless steel, the HSTAR 750 Series Hermetically Sealed Position Sensors can withstand 400 degree temperature spikes and exposure to radiation at 3×107 Rads for 40 years. These 19mm diameter AC-operated linear position sensors are being implemented in the rehab of power generation plants to better monitor the position of controls. Operating within the harsh environment of a power or steam plant, the HSTAR Position Sensors provide accurate position feedback of valve position, providing output to remote electronics that can be monitored by operators. The sensors are available in ranges of +/-1.25mm to +/-250mm. Electrical termination of the HSTAR 750 Series is made through a sealed radial connector located near one end. The radial connector results in a through-bore design that permits access to either or both ends of the unit’s core. Macro Sensors offers several standard options for HSTAR 750 units including metric threaded cores, smaller diameters and low mass cores. The sensors can be constructed for immersion in pressurized fluids.
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