Technical Specifications Passive design with no external excitation power supply; threaded metal housing; outputs sine wave pulse signal whose frequency is proportional to rotational speed; wide industrial temperature tolerance.
Functional Features Non-contact rotational speed measurement; excellent resistance to mechanical vibration and shock; robust mechanical structure without internal wearing components.
Application Scenarios Diesel generator, gas engine and steam/gas turbine speed feedback and overspeed monitoring loops.
Performance Parameters Consistent and stable pulse output across full rated speed range; no mechanical contact abrasion for long service life.
Structural Characteristics Machined metal threaded shell; internal integrated permanent magnet and induction coil assembly; shielded signal outgoing cable to suppress electromagnetic noise.
Working Principle When rotating gear teeth pass the sensor tip, magnetic flux density around the internal magnet changes periodically. The magnetic flux variation induces alternating sine-wave pulse in the induction coil, and pulse frequency directly reflects prime mover rotational speed.
Installation Requirements Adjust air gap between sensor tip and gear teeth strictly per datasheet requirement; fully tighten lock nut to prevent loosening caused by long-term vibration.
Usage Notes Avoid collision and impact damage to sensitive sensing tip during transportation and installation; inspect air gap dimension and cable insulation integrity in routine maintenance.
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