Japan, Kyowa Electronic Instruments Co., Ltd.
Kyowa BRD-AT Rock-bed Compression Displacement Transducer
Made in Japan
Manufacturer: Kyowa Electronic Instruments Co., Ltd.
Model: BRD-AT
The BRD-AT is a displacement transducer with thermal sensor. It is suitable for compressive changes of rock-bed and enables measurement of upheaval.
BRD-5AT
Features
- Detect relative displacement between the ground surface and the anchor fixed to the bottom of a boring
- For displacement detection, the joint transducer BJ-AT is required.
- For rock-bed grout management
Specifications
Performance
Displacement Measurement
Rated Capacity | 5 mm |
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Nonlinearity | Within ±1.5% RO |
Hysteresis | Within ±1.5% RO |
Rated Output | 1 mV/V or more |
Temperature Measurement
Rated Capacity | -30 to 70ºC |
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Measurement Error | ±0.5ºC (-30 to 70ºC) (When measuring temperatures by using Kyowa’s civil engineering transducers with a thermal sensor.) |
Environmental Characteristics
Safe Temperature | -30 to 80ºC |
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Compensated Temperature | -20 to 70ºC |
Temperature Effect on Zero | Within ±0.05% RO/ºC |
Temperature Effect on Output | Within ±0.05%/ºC |
Electrical Characteristics
Safe Excitation | 10 V AC or DC |
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Recommended Excitation | 2 to 10 V AC or DC |
Input Resistance | 350 Ω ±1% at 0ºC |
Output Resistance | 450 Ω ±0.8% at 0ºC |
Cable | 4-conductor (0.5 mm2) chloroprene cable, 11.5 mm diameter by 1 m long, bared at the tip |
Mechanical Properties
Safe Overloads | 120% |
---|---|
Length of Mounting Frame | 950 mm |
Weight | Approx. 10.5 kg (Excluding cable) |
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