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Frictional type torque sensor system FGDH-3A employs a frictional-type gauge does away with having to adhere a strain gauge and time-consuming connection of lead wire. IT measures torque occurring at the drive shaft of an automobile and sends the digital data wirelessly. It uses the 2.4 GHz range of the wireless range for long-range communication […]
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Frictional type torque sensor system FGDH-3A employs a frictional-type gauge does away with having to adhere a strain gauge and time-consuming connection of lead wire. IT measures torque occurring at the drive shaft of an automobile and sends the digital data wirelessly. It uses the 2.4 GHz range of the wireless range for long-range communication and easy receiving antenna locationing. The sensor clamps around the shaft and screws down easily. Applicable shaft diameters are ø20 to 30 mm, ø30 to 40 mm, and ø40 to 50 mm. Power supply uses a USB power cable with recharging capability, so the sensor can be recharged without needing to be removed. [Patent registered]
Features
| Type | FGDH-3A | FGDH-3A-30/40 | FGDH-3A-40/50 |
| Applicable shaft diameter | Φ 20 to 30mm | Φ 30 to 40mm | Φ 40 to 50mm |
| Capacity | Depends on the diameter (outer and inner), material, surface roughness and surface treatment of the shaft *1 | ||
| Output | Depends on the diameter (outer and inner), material, surface roughness and surface treatment of the shaft *1 | ||
| Allowable temperature | -20 to +60 ℃ (No dew condensation) | ||
| Sampling frequency | 5 kHz | ||
| Frequency response | 1 kHz | ||
| Wireless specifications | Conforms to 2.4 GHz band advanced low power data communication system | ||
| External Dimensions | Φ 52 x 50 mm | Φ 64 x 50 mm | Φ 75 x 50 mm |
| Weight (spacer excluded) | Approx. 85 g | Approx. 130 g | Approx. 160 g |
| Protection rating | Equivalent to IP51 | ||
| Continuous operating time | Approx. 6 hours (23 ℃ ±5 ℃) | ||
| Power supply | Lithium secondary battery | ||
CE marking: outside the EU, compliant products are shipped only upon request.
This system is approved for use in Japan, the EU member countries, the People's Republic of China, South Korea. Please contact us for other countries.
*1: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 | 500 N・m |
| ・Output *4 | 2500 mV (equivalent to 8000 x 10-6 strain） |
| ・Non-linearity | 1%RO (when output is 8000 x 10-6 strain） |
| ・Conditions of test piece | |
| 1. Diameter | 20 mm |
| 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 x 10-6 strain (including initial unbalance of ±2000 x 10-6 strain)
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