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Transportation VRS Thrumold Series

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.

Overview

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.

Specifications

Others

  • Weight
    • 72 g [2.54 oz] approx.
  • Output Voltage (Peak to Peak) Min.
    • 30 Vp-p to 48 Vp-p
  • Operating Temperature
    • -40 °C to 120 °C [-40 °F to 248 °F]
  • Operating Frequency
    • 15 kHz typ.
    • 40 kHz typ.
  • Optimum Actuator
    • 8 DP
  • Mounting Thread
    • 5/8-18 UNF-2A thread size
    • M16X1.5 6G
    • M18X1.5 6G
  • Coil Resistance
    • 1270 Ohm to 1630 Ohm
  • Housing Length
    • 83 mm [3.25 in]
  • Surface Speed
    • 5.9 IPS (0.15 m/s) typ.
  • Termination
    • Deutsch DT04 connector
  • Series Name
    • Thrumold
  • Vibration
    • 20 G RMS from 24 Hz to 2000 Hz >50 Mohm
  • Material
    • Stainless steel

Others

  • Weight
    • 72 g [2.54 oz] approx.
  • Output Voltage (Peak to Peak) Min.
    • 30 Vp-p to 48 Vp-p
  • Operating Temperature
    • -40 °C to 120 °C [-40 °F to 248 °F]
  • Operating Frequency
    • 15 kHz typ.
    • 40 kHz typ.
  • Optimum Actuator
    • 8 DP
  • Mounting Thread
    • 5/8-18 UNF-2A thread size
    • M16X1.5 6G
    • M18X1.5 6G
  • Coil Resistance
    • 1270 Ohm to 1630 Ohm
  • Housing Length
    • 83 mm [3.25 in]
  • Surface Speed
    • 5.9 IPS (0.15 m/s) typ.
  • Termination
    • Deutsch DT04 connector
  • Series Name
    • Thrumold
  • Vibration
    • 20 G RMS from 24 Hz to 2000 Hz >50 Mohm
  • Material
    • Stainless steel
  • Weight : 72 g [2.54 oz] approx.
  • Output Voltage (Peak to Peak) Min. : 30 Vp-p to 48 Vp-p
  • Operating Temperature : -40 °C to 120 °C [-40 °F to 248 °F]
  • Operating Frequency : 15 kHz typ.|40 kHz typ.
  • Optimum Actuator : 8 DP
  • Mounting Thread : 5/8-18 UNF-2A thread size|M16X1.5 6G|M18X1.5 6G
  • Coil Resistance : 1270 Ohm to 1630 Ohm
  • Housing Length : 83 mm [3.25 in]
  • Surface Speed : 5.9 IPS (0.15 m/s) typ.
  • Termination : Deutsch DT04 connector
  • Series Name : Thrumold
  • Vibration : 20 G RMS from 24 Hz to 2000 Hz >50 Mohm
  • Material : Stainless steel
Data Sheet
Name
Description
File Size
Date
Size
Transportation Variable Reluctance Speed Sensors, Thrumold Series - Datasheet
application/pdf 508.12 KB
10/7/2021
508.12 KB
Manuals and Guides
Name
Description
File Size
Date
Size
Transportation Range Guide
application/pdf 18.57 MB
10/7/2021
18.57 MB
Speed Sensors Range Guide
application/pdf 781.75 KB
10/7/2021
781.75 KB
Installation Instructions
Name
Description
File Size
Date
Size
Transportation Variable Reluctance Speed Sensors, Thrumold Series - Installation Instructions
application/pdf 324.83 KB
10/7/2021
324.83 KB
Technical Note
Name
Description
File Size
Date
Size
VRS Output Voltage Calculations
application/pdf 48.34 KB
10/7/2021
48.34 KB
Application Note
Name
Description
File Size
Date
Size
Construction Vehicles -
application/pdf 984.29 KB
12/20/2022
984.29 KB
VRS Sensor Application Notes
application/pdf 104.23 KB
10/7/2021
104.23 KB
Agricultural Vehicles -
application/pdf 1.11 MB
10/25/2022
1.11 MB
Defence Ground Vehicles -
application/pdf 872.87 KB
6/14/2023
872.87 KB
VRS Industrial Magnetic Speed Sensors Application Note
application/pdf 543.92 KB
10/7/2021
543.92 KB
Name
Description
File Size
Date
Size
Transportation Range Guide
18.57 MB
10/7/2021
18.57 MB
Construction Vehicles -
984.29 KB
12/20/2022
984.29 KB
VRS Sensor Application Notes
104.23 KB
10/7/2021
104.23 KB
Transportation Variable Reluctance Speed Sensors, Thrumold Series - Datasheet
508.12 KB
10/7/2021
508.12 KB
VRS Output Voltage Calculations
48.34 KB
10/7/2021
48.34 KB
Speed Sensors Range Guide
781.75 KB
10/7/2021
781.75 KB
Agricultural Vehicles -
1.11 MB
10/25/2022
1.11 MB
Defence Ground Vehicles -
872.87 KB
6/14/2023
872.87 KB
Transportation Variable Reluctance Speed Sensors, Thrumold Series - Installation Instructions
324.83 KB
10/7/2021
324.83 KB
VRS Industrial Magnetic Speed Sensors Application Note
543.92 KB
10/7/2021
543.92 KB
Name
Description
File Size
Date
Size
Transportation Variable Reluctance Speed Sensors, Thrumold Series - Datasheet
508.12 KB
10/7/2021
Transportation Range Guide
18.57 MB
10/7/2021
Speed Sensors Range Guide
781.75 KB
10/7/2021
Transportation Variable Reluctance Speed Sensors, Thrumold Series - Installation Instructions
324.83 KB
10/7/2021
VRS Output Voltage Calculations
48.34 KB
10/7/2021
Construction Vehicles -
984.29 KB
12/20/2022
VRS Sensor Application Notes
104.23 KB
10/7/2021
Agricultural Vehicles -
1.11 MB
10/25/2022
Defence Ground Vehicles -
872.87 KB
6/14/2023
VRS Industrial Magnetic Speed Sensors Application Note
543.92 KB
10/7/2021
Product Number
Image
SKU
Description
alt
TM-HAADA
High output, M18X1.5 6G thread size, 83 mm [3.25 in] housing length
alt
TM-HBADA
High output, 5/8-18 UNF-2A thread size, 83 mm [3.25 in] housing length
alt
TM-LDADA
Low output, M16X1.5 6G thread size, 83 mm [3.25 in] housing length
Image
SKU
Description
alt
TM-HAADA
High output, M18X1.5 6G thread size, 83 mm [3.25 in] housing length
alt
TM-HBADA
High output, 5/8-18 UNF-2A thread size, 83 mm [3.25 in] housing length
alt
TM-LDADA
Low output, M16X1.5 6G thread size, 83 mm [3.25 in] housing length