TML - Frictional Type Torque Sensor System FGDH-3A
Automotive Parts Testing
    Model: Frictional Type Torque Sensor System FGDH-3A
    Country of Origin: Japan
    Use: Torque Sensor System measures torque on the drive shaft of a car. Frictional strain gauges are used as sensing elements, and installation is completed by clamping the torque sensor system onto an existing shaft and securing it with a screw.
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Torque Sensor System measures torque on the drive shaft of a car. Frictional strain gauges are used as sensing elements, and installation is completed by clamping the torque sensor system onto an existing shaft and securing it with a screw. There is no need of detaching the shaft, bonding nor wiring strain gauges for installation. The system is applicable to shafts having diameter of  20~30, 30~40 and 40~50 mm using spacers together, which are available as options. A digital telemetry transmitter is built in the sensor, and measured data are transmitted to an exclusive receiver DT-182R by wireless and output as analog signals. For wireless transmission, 2.4GHz band advanced low power data communication system is used.


Features

  • 2.4GHz band is used for wireless communication
  • Three types available for applicable shaft diameter of 20~30, 30~40 and 40~50 mm
  • No bonding is required because frictional strain gauges are used
  • Measurement possible immediately after clamping on the drive shaft
  • Digital communication system adopted for noise-resistant measurement without wiring
  • Easy-to-use rechargeable power source
  • Power saving function provided

Specifications

--- FGDH-3A *1 FGDH-3A-30/40 *2 FGDH-3A-40/50 *2
Applicable shaft diameter Ø20~30mm Ø30~40mm Ø40~50mm
Capacity Depends on the diameter (outer and inner), material, surface roughness and surface treatment of the shaft *3
Output Depends on the diameter (outer and inner), material, surface roughness and surface treatment of the shaft *3
Allowable temperature -20~+60°C (No dew condensation)
Sampling frequency 5kHz
Frequency response 1kHz
Wireless specifications Conforms to 2.4GHz band advanced low power data communication system
External Dimensions Ø52×50mm Ø64×50mm Ø75×50mm
Weight (spacer excluded) Approx. 85g Approx. 130g Approx. 160g
Protection rating Equivalent to IP51
Continuous operating time Approx. 6 hours(+23°C ±5°C)
Power supply Lithium secondary battery
*1:This system is approved for use in Japan, the EU member countries, the People's Republic of China. Please contact us for other countries.
*2:This system is approved for use in Japan and EU member countries. Please contact us for other countries.
*3:This system may not be applicable depending on the material, surface roughness or surface treatment of the shaft. Please contact us beforehand.

[Test conditions]
Torque: 500N·m
Output *4 2500 mV (equivalent to 8000×10-6 strain)
Non-linearity 1%RO (when output is 8000×10-6 strain)
 
Conditions of test piece
1. Diameter: 20mm
2. Material: SNCM439
3. Elastic Modulus: 210000 N/mm2 (test result by TML)
4. Poisson's Ratio: 0.29 (test result by TML)
5. Surface roughness: Ra 3.2
6. Hardness: HRC 38
*4: Allowable output: ±16000×10-6 strain (including initial unbalance of ±2000×10-6 strain)
Solution
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STQ180108 FGDH-3A无线扭矩传感器 适用轴径:Ø20.0~30.0mm
STQ180272 FGDH-3A-30/40无线扭矩传感器 适用轴径:Ø30.0~40.0mm
STQ180273 FGDH-3A-40/50无线扭矩传感器 适用轴径:Ø40.0~50.0mm
 

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