+86 133 6820 1198 manager@hengtairail.com

Home >> Products >> Locomotive Components >> SDD Series >> Magnetoelectric Speed Sensor

  • Magnetoelectric Speed Sensor
  • Magnetoelectric Speed Sensor
  • Magnetoelectric Speed Sensor

Magnetoelectric Speed Sensor

Share

A magnetoelectric speed sensor is a passive device that converts mechanical motion into electrical signals via electromagnetic induction.

  • Description
  • Specification
  • Benefits
  • Drawings

A magnetoelectric speed sensor is a passive device that converts mechanical motion into electrical signals via electromagnetic induction. Featuring simple structure, no power requirement, and robust performance, it's widely used in vibration monitoring and speed measurement applications.

Magnetoelectric Speed Sensor

Product Performance

Reference Value

Relative Humidity

≤95% (Monthly average minimum temperature: 25°C)

Operating Temperature

-40°C to +120°C

Vibration & Shock

Complies with GB/T 21563-2008 requirements for Category 3 axle-mounted applications

Protection Rating

IP68 (5 bar, 2 hours)

Speed Measurement Range

37 Hz to 3109 Hz

Output Waveform Amplitude
(1 kΩ Load)

37 Hz: 1.0 V ≤ Vrms ≤ 6.5 V

53 Hz: 1.4 V ≤ Vrms ≤ 9.3 V

160 Hz: 1.9 V ≤ Vrms ≤ 28.0 V

1000 Hz: 6.0 V ≤ Vrms ≤ 28.0 V

3109 Hz: 6.0 V ≤ Vrms ≤ 28.0 V

Operating Air Gap

0.8 ± 0.3 mm

Output Waveform

Quasi-sinusoidal

Number of Output Channels

3

Phase Difference

Channel 1-2: 90° ± 30°

Output Signal Frequency

f=ω×1.2Hz
(where ω = actual speed in rpm)

Dielectric Strength

AC 3000 V [50 Hz, 60 s]

Insulation Resistance

≥100 MΩ (measured at 1000 V with a megohmmeter)

Protection Features

Power supply polarity protection

Output short-circuit protection


· Rugged & Maintenance-Free: Robust construction with no moving parts, ensuring long-term reliability in harsh environments.
· Wide Frequency Response: Effectively measures vibrations across low to mid-frequency ranges (e.g., 0.5 Hz–1 kHz).
· Directional Sensitivity: Specifically detects motion in one axial direction while rejecting transverse vibrations, providing precise directional measurement.
· Temperature Stability: Maintains consistent performance across wide temperature ranges (-40°C to +120°C) due to passive design and robust construction.

Magnetoelectric Speed Sensor