Woodward 9905-971 Magnetic Pickup Speed Sensor

Product Brief Introduction Passive magnetic pickup sensor for prime mover rotational speed measurement, delivering pulse feedback signal to digital governor.
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Technical Specifications Passive design without external power; threaded metal housing; wide operating temperature, sine wave pulse output.

Functional Features Non-contact speed measurement, strong vibration resistance, simple reliable mechanical structure.

Application Scenarios Diesel genset, gas engine and turbine speed feedback loop.

Performance Parameters Stable pulse output within rated speed range, no contact abrasion.

Structural Characteristics Metal threaded housing, built-in permanent magnet and induction coil, shielded outgoing cable.

Working Principle Gear teeth pass the sensor tip and change magnetic flux, inducing alternating pulse signal whose frequency corresponds to rotational speed.

Installation Requirements Adjust suitable air gap between sensor and gear teeth, tighten lock nut to prevent vibration loosening.

Usage Notes Protect sensing tip during installation; inspect air gap and cable insulation regularly.




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