Torque sensor is a strain gauge sensor for static torque measurement. Static torque sensor has double-flange, a 5 pin male plug and no mounting base so it can be easy to install. Reaction torque sensors have a capacity range from 20 Nm/300 Nm/2000 Nm to 10000 Nm and can measure both forward and reverse torque.
Reaction torque sensor is a special static torque sensor for torque wrench calibration. Torque sensor has one end of flange and the other end of square groove. Reaction torque transducers have a capacity range from 5 Nm/10 Nm/20 Nm/50 Nm/100 Nm to 200 Nm, 120%FS safety overload, and can measure both forward and reverse torque.
Torque sensor is a strain gauge sensor for static torque measurement or torque wrench calibration. It can measure both forward and reverse torque. Static torque sensor has one end of flange and the other end of square drive. Reaction torque sensors have a capacity range of 2/10/30/50/100/200 Nm.
Micro torque sensor is a reaction torque sensor for static torque measurement. Torque sensor is made of aluminium alloy, 150%FS safety overload, -20℃~+80℃ operating temperature, low price. Reaction torque transducers have a capacity range from 0.5 Nm ~ 150 Nm and can measure both forward and reverse torque.
Rotary torque sensor is a non-contact torque sensor with two shafts and shaft keys, a male plug and a mounting base. Shaft torque sensors have a capacity range from 10 Nm/50 Nm/2000 Nm/10000 Nm to 300000 Nm. It can be applied to torque/rotary speed/power measurement of AC/DC motor, gear motor and diesel generator for a long-term.
Rotary torque sensor is a strain gauge sensor for dynamic micro torque measurement. It has two shafts, a 5 pin male plug and no mounting base. Micro torque sensors have a capacity range from 0.1 Nm/0.2 Nm/0.3 Nm/0.5 Nm/1 Nm/3 Nm to 5 Nm. Rotary torque transducer can measure both forward and reverse torque.
Digital rotary torque sensor with LCD display has the capacity range from 0.1 Nm/0.3 Nm/1 Nm/5 Nm/10 Nm/300 Nm/1000 Nm to 10000 Nm. LCD display can show torque, speed and power value at the same time. Dynamic torque sensor adopts two NSK shafts to ensure starting torque as low as 0.00001 Nm. Rotary torque transducer with 7 pin waterproof circular connector and 3m cable can measure both forward and reverse torque, and then output ±5V/0-10V/4-20mA/RS485 torque signal to PLC.
Rotary torque sensor input and output end use flange connection, capacity range from 20 Nm, 50 Nm, 100 Nm to 5000 Nm. It is non-contact without the use of the bearing, which is suitable for high speed rotating or requiring short axial occasion.
Rotary torque sensor can measure static torque and dynamic torque, non-contact with two shafts and shaft keys. The electrical signal of elastic shaft under torsion can be measured by providing power for the strain gauge bridge. Shaft torque sensors have a capacity range from 50 Nm, 100 Nm, 500 Nm to 50000 Nm.
Torque sensors are divided into dynamic torque sensors and static torque sensors. The static torque sensor can also be called reaction torque sensor, while the dynamic torque sensor can also be called non-contact torque sensor or rotary torque sensor. Torque sensors are used for detecting the perception of torque on various rotating or non-rotating mechanical components. The torque sensor converts the physical changes of torsion into precise electrical signals. The torque sensor has the advantages of high precision, fast frequency response, good reliability and long life. The torque sensor applications are:
AC/DC motor, servo motor, stepper motor.
The automobile engine, diesel engine, steering gear, the overall rigid torsion of the vehicle body and the control and detection of other parts processing.
Electric (hand) actuators, automatic opening and closing control of various valves.
Control and monitoring of oil extraction and refining processes, monitoring of fire (water) power generation equipment, ore screening control, and monitoring of wind power generation equipment.
Torque life test of various materials.
Detect the torque, power and rotary speed of various motors, pumps, windlasses, rotary machines, CNC and automatic machine tools.
Can be used to test and calibrate viscometer and electric (pneumatic, hydraulic) torque wrench.
Strain gauge torque sensor adopts strain electric measurement technology. A strain gauge is attached to the elastic shaft to form a measuring bridge. When the elastic shaft is slightly deformed by torque, the resistance value of the bridge will change, and the change of strain bridge resistance will change into the change of electrical signal to achieve torque measurement. The sensor completes the following information conversion, such as the sensor consists of elastic shaft, measuring bridge, instrument amplifier and interface circuit.
Non-Contact Torque Sensor
The input shaft and output shaft of the non-contact torque sensor are connected by a torsion bar, the input shaft is provided with splines, and the output shaft is provided with a keyway. When the torsion bar is twisted by the rotational moment of the steering wheel, the relative position between the splines on the input shaft and the keyway on the output shaft is changed. The relative displacement of the spline and the keyway changes by an amount equal to the twist of the torsion bar, which changes the magnetic induction on the spline. The change of the magnetic induction is converted into a voltage signal through the coil.
Rotary Torque Sensor
Rotary torque sensors can be used in the manufacture of viscometers, electric (pneumatic, hydraulic) torque wrenches. It have the advantages of high precision, fast frequency response, good reliability, and long life. Using strain gauge electrical measurement technology, a strain bridge is formed on the elastic shaft, and the electrical signal of the elastic shaft being twisted can be measured by supplying power to the strain bridge. After the strain signal is amplified, it is converted into a frequency signal proportional to the torsional strain after pressure/frequency conversion.
Turn on the industrial control host, open the test software, and ensure that the pressure sensor and the motion card are connected stably, and the numerical value is within the range of error (0.01gf.cm-0.03gf).
Assemble the auxiliary connectors.
Open the software to select the corresponding range of the sensor, then open the calibration sensor interface, and clear the value when the sensor has no load.
Select the appropriate weight according to the range of the sensor (for the sensor with a small range, choose a small weight, and for a large range, choose a larger weight. For example, 2N.m choose 200g, 100g weight, 50N.m choose 500g, 1kg weight code), tie the weight to one end of the connecting piece, and hang it on one end of the pulley through the rope along the groove of the standard piece to keep the contact state stable without external force.
On the software calibration interface, click Allow Calibration, enter the torque value of the calibration weight (gravity * force arm), and click OK.
Wind the weight in another direction to check the reverse force value. If the difference is large (>0.5gf.cm), take the average value of the positive and negative force values.
Record the calibration data.
The calibration cycle is normally 1 year. If it is repaired or adjusted during use, it needs to be re-calibrated.
If you want to know more about how to calibrate a rotary torque sensor, please check:
Tips for Installing Torque Sensor
Torque sensor can be installed horizontally or vertically.
Power equipment, sensors, load equipment should be installed on a stable basis to avoid excessive vibration, otherwise data instability may occur, reduce the measurement accuracy, or even damage the sensor.
Connect with elastic pin coupling or rigid coupling.
The concentricity of the axis of power equipment, sensors and load equipment should be less than φ 0.05mm.