One,Application range：

 Torque sensor is a precision measuring instrument for measuring various kinds of torque, rotating speed and mechanical power. Wide application range, mainly used for:

1, motor, engine, internal combustion engine and other rotating power equipment output torque and power of detection;

2, the wind machine, water pump, gear box, torque, and power;

3, railway locomotives, automobiles, tractors, aircraft, ships, mining machinery in the detection of torque and power;

4, can be used for the detection of the torque and power in the sewage treatment system;

5, can be used in the manufacture of viscometer;

6, can be used for process industry and process industry.

Two, basic principles:

The measurement of the torque: the strain gauge technique is used in the elastic shaft to form a strain bridge, which can be measured by the power supply.Electrical signal of the elastic axis. After the strain signal is amplified, it is converted into a frequency signal which is proportional to the torsion stress by the pressure / frequency conversion.

As shown in picture 1:

Three, product features:

1 signal output can be arbitrarily select a wave or pulse wave.

2 high detection accuracy, good stability, strong anti-interference.

3 Don’t need to repeatedly adjust the zero piont; continuous measurement of positive and negative torque.

4 Not only can measure the static torque, but also to measure the dynamic torque.

5 small size, heavy sensor can be separated from the two meter independent use, as long as the outlet pin number to provide +15V, -15V (200mA) power, you can output impedance and torque is proportional to the square wave or pulse wave frequency signal. Light weight, easy to install.

6 measuring range: 0 - 10000Nm standard, non - standard 20000 Nm, 30000 Nm, 50000 Nm, 80000 Nm, 10Nm, 150000 Nm, 200000 Nm can be customized, special custom range.

Four, installation

1. According to the length of the form and the torque sensor connection shaft of the determined prime mover and load between the distance, adjusting the prime mover and the load axis relative to the datum plane distance and make their axes concentricity of less than 0.03mm diameter, fixed prime mover and load on the reference surface.

2 the couplings are respectively mounted on the respective shafts.

3. Adjust torque sensor and the reference surface distance, make its axis and the original motivation and the load axis coaxial degree less than the diameter of 0.03mm, fixed torque sensor in datum.

4 fastening coupling, the installation is finished

Five, signal output and signal acquisition:

1, the basic form of torque signal output:

- square wave signal, pulse signal.

- can be made according to the user needs to be made of analog signal output voltage or current analog signal output (one-way, static torque measurement).

2, torque signal processing:

- the frequency signal of the output of the torque sensor is sent to a frequency meter or a digital meter, and the frequency signal is directly proportional to the torque.Voltage and current signal.

- torque sensor torque and frequency signal to the microcontroller two meters, direct display of real-time torque, speed and output Power value and RS232 communication signal.

- direct torque and speed of the frequency signal to the computer or PLD processing.

Six, maintenance

1 every year should be given to the torque sensor at both ends of the bearing grease. When you add grease, only the two ends of the bearing cover is opened, the grease to the bearing, and then put on both ends.

2 in the environment where there is a dry, non corrosive, and temperature for -20℃——70℃

Seven, note:

1 installation, operation can not be charged, not directly beat, collision torque sensor.

2 coupling of the fastening bolts should be tightened to the coupling of the outside of the protective cover, to avoid personal injury.The output of the

3 signal line not to, on the short circuit of the power supply, the output current of shielding layer is less than 10mA, and must be shielded cable +15V power supply of the public side (power) connection.

Eight, installation and use:

1, the use of the environment: torque sensor should be installed in the ambient temperature of0℃～ 60℃, the relative humidity is less than 90%, no flammable,

Environment of explosive goods. Should not be installed in the environment of strong electromagnetic interference.

2, installation method:

(1)    horizontal installation: as shown in picture 11:

(2) vertical installation: picture 12:

3, connection mode: torque sensor and power equipment, load equipment connection

(1) the elastic pin coupling is connected as shown in picture 13, which is simple in structure, easy to process, and easy to maintain. The relative offset of the shaft caused by the installation error of the trace can also play a minor role in reducing the vibration. Suitable for medium load and high speed operation, the working temperature is -20-70℃.

(2)    rigid couplings are connected as shown in picture 14, the connection structure is characterized by simple structure, low cost, no compensation performance, not buffer, of the two axes of the installation precision is high. Used in vibration condition.

4, installation requirements:

(1) the torque sensor can be horizontally mounted, and can also be installed vertically.

(2) as shown in picture 11, 12, power equipment, torque sensors, load equipment should be installed on a solid basis to avoid excessive vibration, otherwise it may occur data instability, reduce measurement accuracy, and even damage torque sensor.

(3) the use of an elastic pin coupling or rigid coupling.

(4) power equipment, concentric torque sensor, load axis degree should be less than 0.05mm.