This is a telemetry system for dynamic strain measurement using a wireless module of 2.4GHz advanced low-power data communication system. It consists of the transmitter DT-121T and the receiver DT-181R. It is suitable for application where there is some distance between the transmitter and the receiver such as a large testing object or a moving object, not like as a conventional system whose application is limited to the vicinity of drive shaft of a passenger car. The specifications of this system conform to the regulation of the global wireless communication system. If a certification is obtained in the state of the operator, this system can also be used outside Japan.
Features
- 2.4GHz band low-power data communication system
- 5kHz sampling
- Measuring range is selected among ±5000, ±10000 and ±25000×10-6 strain(To be specified when ordering)
- Voltage output for strain is fixed; No need of calibration
- Antenna is built in the transmitter
| Transmitter: |
| Type |
DT-121T |
DT-121T-(1) |
DT-121T-(2) |
| Number of measuring point |
Strain: 1 point |
| Applicable gauge resistance |
Full bridge 120~1000Ω |
| Bridge excitation |
2V ±8% |
| Measuring range |
±25000×10-6 strain |
±5000×10-6 strain |
±10000×10-6 strain |
| Resolution |
1×10-6 strain |
| Measuring accuracy |
±0.2%FS |
| Sampling frequency |
±0.2%FS |
| Frequency response |
DC~1kHz(-3dB±1dB) |
| Stability on zero |
±0.01%/°C |
| Stability on sensitivity |
±0.01%/°C |
| Dimensions |
45(W)×11(H)×31(D)mm (except projecting parts) |
| Weight |
Approx. 17g |
| Receiver: |
| Type |
DT-181R |
| Voltage output |
±5V |
| Lowpass filter |
100Hz, 500Hz, PASS (1kHz) (-3dB±1dB) |
| Dimensions |
48(W)×23.5(H)×100(D)mm (except projecting parts) |
| Weight |
Approx. 140g |
| Weight |
DC9~16V |
Hoskin Environnement
Hoskin Géotechnique
Hoskin Instrumentation
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