Speed Sensors
Transportation VRS Thrumold Series
Provide engine timing and transmission speed by determining speed & position of rotating shafts in heavy-duty, off-road, and construction vehicles
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The Thrumold Series VRS (Variable Reluctance Speed) sensors are designed to detect engine timing and transmission speed by determining the speed and position of rotating shafts in heavy-duty, off-road, and construction vehicles, providing information to help improve engine combustion process efficiency. These passive VRS sensors are simple, rugged devices that do not require an external voltage source for operation.
A permanent magnet in the sensor establishes a fixed magnetic field. The approach and passing of a ferrous metal target near the sensor’s pole piece (sensing area) changes the flux of the magnetic field, dynamically changing its strength. This change in magnetic field strength induces a current into a coil winding which is attached to the output terminals.
The output signal of a VRS sensor is an ac voltage that varies in amplitude and frequency as the speed of the monitored device changes, and is usually expressed in peak to peak voltage (Vp-p). One complete cycle occurs as each tooth passes the sensor’s pole piece. If a standard gear were used as a target, this output signal would resemble a sine wave if viewed on an oscilloscope.
Others
- Housing Length
- 83 mm [3.25 in]
- Output Voltage (Peak to Peak) Min
- 30 Vp-p to 48 Vp-p
- Weight range
- 72 g [2.54 oz] approx.
- Coil Resistance
- 1270 Ohm to 1630 Ohm
- Optimum Actuator
- 8 DP
- Surface Speed
- 5.9 IPS (0.15 m/s) typ.
- Vibration
- 20 G RMS from 24 Hz to 2000 Hz >50 Mohm
- Operating Frequency
- 15 kHz typ.
- 40 kHz typ.
- Material
- Stainless steel
- Series Name
- Thrumold
- Operating temperature
- -40 °C to 120 °C [-40 °F to 248 °F]
- Termination
- Deutsch DT04 connector
- Mounting Thread
- 5/8-18 UNF-2A thread size
- M16X1.5 6G
- M18X1.5 6G
Others
- Housing Length
- 83 mm [3.25 in]
- Output Voltage (Peak to Peak) Min
- 30 Vp-p to 48 Vp-p
- Weight range
- 72 g [2.54 oz] approx.
- Coil Resistance
- 1270 Ohm to 1630 Ohm
- Optimum Actuator
- 8 DP
- Surface Speed
- 5.9 IPS (0.15 m/s) typ.
- Vibration
- 20 G RMS from 24 Hz to 2000 Hz >50 Mohm
- Operating Frequency
- 15 kHz typ.
- 40 kHz typ.
- Material
- Stainless steel
- Series Name
- Thrumold
- Operating temperature
- -40 °C to 120 °C [-40 °F to 248 °F]
- Termination
- Deutsch DT04 connector
- Mounting Thread
- 5/8-18 UNF-2A thread size
- M16X1.5 6G
- M18X1.5 6G
- Housing Length : 83 mm [3.25 in]
- Output Voltage (Peak to Peak) Min : 30 Vp-p to 48 Vp-p
- Weight range : 72 g [2.54 oz] approx.
- Coil Resistance : 1270 Ohm to 1630 Ohm
- Optimum Actuator : 8 DP
- Surface Speed : 5.9 IPS (0.15 m/s) typ.
- Vibration : 20 G RMS from 24 Hz to 2000 Hz >50 Mohm
- Operating Frequency : 15 kHz typ.|40 kHz typ.
- Material : Stainless steel
- Series Name : Thrumold
- Operating temperature : -40 °C to 120 °C [-40 °F to 248 °F]
- Termination : Deutsch DT04 connector
- Mounting Thread : 5/8-18 UNF-2A thread size|M16X1.5 6G|M18X1.5 6G
Data Sheet
Manuals and Guides
Installation Instructions
Technical Note
Application Note
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