Dynamic Torque Sensor


CJ-NJ dynamic torque sensor is based on proprietary technology developed on the strain bridge, special sensors for measuring torque, speed parameters. This series torque sensor uses strain bridge measuring technology, using a set of toroidal transformer provides a non-contact power supply, micropower signal coupler instead of toroidal transformer for non-contact signal transmission, effectively overcome the inductive interference and harmonic energy toroidal transformer toroidal transformersignal mutual interference, while the output spikes into a square wave signal, etc. Therefore, this series torque sensor can be a long, high-speed operation. These series can be used for dynamic measurements, variety of installation design, takes users great convenience.

Technical Parameter


20Nm, 50Nm, 100Nm, 500Nm, 1000Nm, 2000Nm

Power supply


Torque signal

5 ~ 15Khz (amplitude 12V, zero 10kHz), 4 ~ 20mA, 1 ~ 5V, 0-10V (optional)

Speed Range

0 ~ 1000,3000,6000,8000 rev / min

Speed signal

60 pulses/revolution (no accumulation of errors, the amplitude of 12VDC), 4-20mA, 1 ~ 5V




0.3% / year

Insulation resistance


Ambient temperature

-20 ~ 60 (can be customized high temperature -20 ~ 120 )

Relative humidity




Frequency response




Installation Method

1. High-measuring sensor and the center of the shaft diameter, to be installed.
2. Use two couplings or flange, the sensor is mounted between the power plant and the load.
3. were adjusted power equipment, load, high center of the sensor and coaxial degree    requirement is less than 0.01mm, and fix and tighten reliable, does not allow loose, when the small-scale or high-speed sensor, to ensure strict center connections and high concentricity. Doing so may cause damage to the sensor and measurement error.
Choice of rigid or flexible coupling 4. When connected, the shock can not be guaranteed concentricity greater or installation requirements (greater than 0.05mm, less than 0.02mm), recommended Rao, elasticity or universal joint couplings; and the sensor base and the support frame
It proposes to add between about 10mm rubber pad to reduce the damage to the sensor when the sensor is installed in a different mind.
5. The power source and the load equipment must be fixed reliably avoid vibration; sensor support base must have a certain strength. To ensure the stability of the installation to avoid excessive vibration. Doing so could cause instability in the measured data, affect the measurement accuracy.
6. The coupling should be against the shaft shoulder across the sensor. Sensor is a precision measuring instrument, installation of non-impact, beating and other violent impact.