Pipe Strain Transducer


Measure the depth and amount of landslide.
This transducer is designed to estimate the depth and amount of landslide. It has a strain gage bonded on a PVC pipe to form a flexible detector. Multiple units that are connected via joint pipe are placed vertically into a boring at the landslide site and fixed by filling the gap with sand. Landslide scale and depth are estimated based on bending strain measured at each depth by the detector, which is sequentially selected using a switch box.
(Tokyo Electric make)

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Gage Resistance Uniaxial 120 Ω (Half bridge system)

Landslide Measurement


Output Channels 1 (Use switch box NS-H for multi-channel measurement. )
Measurement Range 0 to ±19999 µm/m
Accuracy ± (0.5% of reading + 2 digits)
Notes: After compensation of tension/compression measurement
Display 7-segment LCD, character height 11.4 mm
Automatic polarity switchover, minus sign only on display
Sampling Sampling Frequencies : Approx. 2 times/s
Operating Temperature 0 to 45ºC
Power Supply AA size NiCd dry cell x 4
Continuous operation time: Approx. 20 hours (With l20 Ω gage)
Charge time: Approx. 15 hours
Low battery: Indicated by B signal
Dimensions 90 x 170 x 35 mm (Excluding protrusions)
Weight Approx. 420 g

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For strainer or filter winding fabrication, contact a KYOWA representative.