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|Usage:||Torque Measurement Sensor||Theory:||Miniature Flange Torque Transducer|
Flange type reaction torque sensor 1NM 2NM 5Nm 10Nm 20N 50N-m 100Nm 150Nm
Miniature flange type torque transducer FT01 is strain gauge based intended for reaction torque measurement in both clockwise and anticlockwise direction. Miniature torque sensor FT01 offers 1NM / 2NM / 5NM / 10NM / 20N-m / 30NM / 50NM / 100N-m / 150N-m nine rated capacities to choose from,high accracy with maximum 0.3% non-linearity of the full scale.End flanges located on both sides of the torque transducer can be used for bolting between shaft or mounting plates, very compact size makes torque cell FT01 suitable for torque measurement where mounting space is limited. Reaction torque transducer FT01 can be modified or customized as per client's request to meet requirements of different applications.
Dimensions(unit in "mm")
1NM / 8.8 lb-in
2NM / 17.7 lbf*in
5NM / 44 lbf-in
10NM / 88 lb*in
20NM / 177 lb-in
30NM / 265 lbf-in
50NM / 442 lbf*in
100NM / 885 lb*in
150NM / 1300 lb-in
|Safe overload||150% F.S.|
|Ultimate overload||200% F.S.|
|Temp. shift zero||±0.02% R.O./oC|
|Temp. shift span||±0.02% R.O./oC|
|Input resistance||410±30 ohms|
|Output resistance||350±10 ohms|
|Insulation resistance||>2000M ohms|
|Material of element||
0-100Nm @ Aluminum alloy
150Nm @ Alloy steel
|Cable||Ø3*2000mm 4-core shielded|
Torque sensor: A transducer that converts mechanical torque into mV signal proportional to the applied torque
Wheatstone Bridge:A Wheatstone bridge is a network of four resistive legs. One or more of these legs can be active sensing elements. The Wheatstone bridge is the electrical equivalent of two parallel voltage divider circuits. R1 and R2 compose one voltage divider circuit, and R4 and R3 compose the second voltage divider circuit. The output of a Wheatstone bridge is measured between the middle nodes of the two voltage dividers.
Excitation: The voltage applied to the input terminals of the load cell.
Rated Capacity: The maximum axial load the load cell is designed to measure within its specifications.
Non-linearity: The maximum deviation of the calibration curve from a straight line drawn between the no-load and rated outputs; expressed as a percentage of the rated output and measured on increasing load only.
Non-repeatability: The maximum difference between load cell output readings for repeated loadings under identical loading and environmental conditions.
Hysteresis: The maximum difference between load cell output readings for the same applied load; one reading obtained by increasing the load from zero and the other by decreasing the load from rated output; usually measured at half rated output and expressed in percent of rated output.
Creep: The change in load cell output occurring with specified period of time, while under load, and with all environmental conditions and other variables remaining constant; usually measured with rated load applied.
Safe Overload: The maximum load in percent of rated capacity which can be applied without producing a permanent shift in performance characteristics beyond those specified.
Brief instruction of Rated output(or Sensitivity):
Definition: The signal produced by load cell(or force transducer) when rated load is applied, expressed in terms of mV/V. The rated output indicates the output signal range of a sensor.
Sensor output = (Power supply * Rated output) * Load / Capacity
Rated output is normally within 1mV/V~3mV/V.
Power supply is normally within 3-15V.
Load / Capacity is within 0-1.
So the load cell output signal is normally within 0-45mV(-45mV...+45mV for bidirectional load cell).
Example one: 2.0mV/V torque sensor with 10V power supply,the output range is -20mV...+20mV.
Example two: 1.0mV/V torque load cell with 5V power supply,the output range is -5mV...+5mV .