High speed non-contact dynamic torque sensor ZN series

High speed non-contact dynamic torque sensor ZN series

ZN-T031/T031GThe series of dynamic torque sensors are widely used in non-contact manufacturing for detecting torque, speed, and power in rotating power equipment such as engines, fans, railway locomotives, automobiles, airplanes, testing machines, hydraulic systems, etc. They can also be used to make viscometers. Due to its excellent stability, high measurement accuracy, and high cost-effectiveness, it has been praised by a large number of users.

Product features

1. High detection accuracy, good stability, and strong anti-interference ability.

2. Continuous measurement of forward and reverse torque without the need for repeated zeroing.
3. Small in size, lightweight, and easy to install. Can be installed horizontally and vertically.
4. The sensor is detached from the secondary instrument and can directly output frequency signals or analog quantities proportional to torque

Scope of application

High speed non-contact dynamic torque sensor ZN series

Dynamic torque sensor ZN-T031It is a precision measuring instrument that measures various torques, speeds, and mechanical power. The application scope is very wide, mainly used for:

1. Detection of output torque and power of rotating power equipment such as electric motors, engines, and internal combustion engines;

2. Testing of torque and power of fans, water pumps, gearboxes, and torque wrenches;

3. Testing of torque and power in railway locomotives, automobiles, tractors, airplanes, ships, and mining machinery;

4. Can be used for torque and power detection in sewage treatment systems;

5. Can be used to manufacture viscometers;

6. Can be used in process industry and process industry.

Basic Principles

1Measurement of torque: using strain gauge electrical measurement technologyBy forming a strain bridge on the elastic axis and providing power to the bridge, the electrical signal of the elastic axis being twisted can be measured. After amplifying the strain signal, it is converted into a frequency signal proportional to the torsional strain through compression/frequency conversion.

2. Measurement of rotational speed: The measurement of rotational speed is carried out using the method of magnetic electric code disc. Each magnetic electric code disc has 60 teeth, and the shaft drives the magnetic electric code disc to generate 60 pulses per rotation. The accuracy of the rotational speed sensor can reach ± 0.1% to ± 0.5% (F · S). The speed measurement method of this sensor adopts built-in speed measurement. When ordering, users need to indicate whether they are monitoring the rotational speed signal!

Definition of Electrical Wiring

The torque sensor uses an aviation connector (with shielded cable), and the shielded cable lead is defined as follows:

1. Power supply: ± 15VDC output: 5-15KHz

power supply(Red+15VDC) (Black GND) (Blue -15VDC)

torque output: (Yellow positive T+) (Green negative T -)

2. Power supply: ± 15VDC Output: 5-15KHz Built in speed sensor

power supply(Red+15VDC) (Black GND) (Blue -15VDC)

torque output: (Yellow positive T+) (Green negative (T/S -))

Speed output: (white positive)S+(Green (T/S -))

3. Power supply: ± 15VDC output: 4-20mA (analog)

power supply(Red+15VDC) (Black GND) (Blue -15VDC)

Torque output: (Huang Zheng)T+(green negative T -)

4. Power supply: ± 15VDC Output: 4-20mA (analog) Built in speed sensor

power supply(Red+15VDC) (Black GND) (Blue -15VDC)

Torque output: (Huang Zheng)T+(green negative T -)

Speed output: (white positive)S+) (Green Negative S -)

5. Power supply: 24VDC output: 5-15KHz

power supply(Red 24VDC) (Black GND)

torque output: (Yellow positive T+) (Green negative T -)

6. Power supply: 24VDC output: 5-15KHz built-in speed sensor

power supply(Red 24VDC) (Black GND)

torque output: (Yellow positive T+) (Green negative T -)

Speed output: (white positive)S+) (Green Negative S -)

7. Power supply: 24VDC output: 4-20mA (analog)

power supply(Red 24VDC), (Black GND)

Torque output: (Huang Zheng)T+) , (Green negative T -)

8. Power supply: 24VDC output: 4-20mA (analog) built-in speed sensor

power supply(Red 24VDC) (Black GND)

Torque output: (Huang Zheng)T+(green negative T -)

Speed output: (white positive)S+) (Green Negative S -)

9. Power supply: ± 15VDC Output: 0-10V (analog) Built in speed sensor

Power supply: (red)+15VDC) (Black GND) (Blue -15VDC)

Torque output: (Huang Zheng)T+(green negative T -)

Speed output: (white positive)S+) (Gray negative S -)

Installation method and requirements

1. Installation method: It can be installed horizontally or vertically.

(1) Horizontal installation: as shown in Figure 11:

(2) Vertical installation: as shown in Figure 12:

2. Connection method:

Connection between torque sensor and power equipment, load equipment

(1) Elastic pin coupling connection: As shown in Figure 13, this connection method has a simple structure, easy processing, and convenient maintenance. Can provide trace supplementation

Compensate for the relative displacement of the shaft caused by installation errors, while also providing slight vibration reduction. Suitable for high and low speed operation scenarios with moderate load and frequent starting, with a working temperature of-10-50℃。

(2) Rigid coupling connection: As shown in Figure 14, this connection form has a simple structure, low cost, no compensation performance, cannot buffer or reduce vibration, and has high installation accuracy for both shafts. Used for working conditions with minimal vibration.

3. Installation requirements:

(1)The torque sensor can be installed horizontally or vertically

(2)As shown in the figure11. As shown in Figure 12, power equipment, sensors, and load equipment should be installed on a stable foundation to avoid excessive vibration, otherwise data instability, reduced measurement accuracy, and even damage to sensors may occur.

(3)Use elastic pin couplings or rigid couplings for connection.

(4)The concentricity of the axes of power equipment, sensors, and load equipment should be less thanΦ0.03mm。

4. Installation interface shape and size reference:

As shown in the figureAs shown in Figure 15: The values of A, B, F, and G labeled in the figure are shown in the corresponding specification table in Figure 7

5. Installation steps:

(1) Based on the connection form of the shaft and the length of the torque sensor, determine the distance between the prime mover and the load, adjust the distance between the axis of the prime mover and the load relative to the reference plane, so that their coaxiality is less than Φ 0.03mm, and fix the prime mover and the load on the reference plane.

(2) Install the couplings onto their respective shafts.

(3) Adjust the distance between the torque sensor and the reference plane so that the coaxiality between its axis and the axis of the prime mover and load is less than 0.03mm, and fix the torque sensor on the reference plane.

(4) Tighten the coupling and complete the installation.

Note:

If you have a frequency converter or servo motor on site, please add it before the sensor power supply1: 1. Isolation transformer, sensor cable shielding wire grounded; If the sensor is equipped with a matching instrument, a 1:1 isolation transformer needs to be added in front of the instrument.