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Woodward 94025-004
Product Overview
A high-sensitivity magnetic pickup (MPU) speed sensor designed for detecting the rotational speed of engines, turbines, and generators. It generates an AC voltage signal proportional to the speed of a ferromagnetic gear or toothed wheel, which is then transmitted to a speed controller for regulation and monitoring.
Detailed content
Technical Specifications
- Sensor Type: Variable reluctance magnetic pickup
- Output Signal: AC voltage, 0.5–100 VRMS (speed-dependent)
- Frequency Range: 10 Hz–10 kHz
- Gear Tooth Requirement: 2–250 teeth (standard 60 teeth)
- Air Gap: 0.5–2.0 mm (0.02–0.08 inches)
- Operating Temperature: -40 °C to +125 °C
- Cable Length: 5 meters (16.4 feet) standard
- Connector Type: 2-pin MS connector
- Housing Material: Stainless steel
- Weight: 0.3 kg
Functional Characteristics
- High sensitivity for reliable low-speed detection
- No external power supply required (passive sensor)
- Rugged stainless steel housing for durability
- Resistant to vibration, oil, and moisture
- Easy installation and adjustment of air gap
- Compatible with all Woodward speed controllers and protection modules
- Long service life with no moving parts
Application Scenarios
Engine and turbine speed monitoring, generator speed regulation, overspeed protection systems, industrial compressor speed control, and marine propulsion engine speed sensing.
