Features of 120 Reaction Torque Sensor

• The resistance strain is an integrated product composed of sensitive components and integrated circuits. High precision and stable performance
• Small size, suitable for small and compact spaces
• Static torque measurement, 0-30-150N.m optional
• Torque can be measured in both positive and negative directions
• Both ends are keyway links, easy to install
• Support customization

Technical Parameters

Parameters	Technical indicators
Range	0～30,50,100 150 Nm
Snsitivity	1.5±10% mV/V
Zero output	±1%F.S.
Non-linear	±0.1, 0.3% F.S.
Hysteresis	≤±0.05% F.S.
Repeatability	≤±0.05% F.S.
Creep	≤±0.03% F.S/30min
Temperature Sensitivity Drift	0.03% F.S. / 10℃
Zero temperature drift	0.03% F.S. / 10℃
Input resistance	350,750±10Ω
Input resistance	350,700±5Ω
Response frequency	100μS
Insulation resistance	≥5000MΩ/100VDC
Excitation voltage	10VDC (9-15VDC)
Temperature Compensation Range	-10 ~ 60℃
Range of working temperature	-20 ~ 65℃
Safety overload	150% F.S.
Extreme overload	200% F.S.
Cable size	Ø5.2×3m
Electrical connections	Red/E+, Black/E-, Green/S+, White/S-
Material	Aluminum, stainless steel or alloy steel
Other request	customizable

Dimensions

What is the relationship and difference between bolt dynamic torque and static torque?

Anyone who understands the bolt fastening assembly process knows that torque is divided into dynamic torque and static torque. For parts assembly, the dynamic torque is the process input of the engineering R&D department to the manufacturing process. It is not a requirement for the tightening result. The manufacturing process department sets the parameters of the electric tightening gun according to the torque value on the drawing. The peak value displayed on the electric tightening gun at the end of tightening is the dynamic torque.

So the question is, when the electric gun reaches the set torque, how do we know that the bolt or nut has been really tightened and meets the requirements? At this time, the concept of static torque appeared, and regular spot checks should be done during the production process.

For power battery products, this static torque is particularly important. Especially the high-voltage connection part inside the power battery. If the tightening is not in place, it will cause excessive contact internal resistance. During the high-power charging and discharging process of the battery, the contact part will generate a lot of heat. likely to cause thermal runaway. Cause the battery and even the vehicle to burn.

Therefore, the use of dynamic torque and static torque can classify and accurately control torque. The professional explanation of dynamic torque and static torque is as follows:

Dynamic torque is the torque value (range) given by the designer from a technical point of view. Install a dynamic torque transducer on the assembly tool. The peak torque measured by the torque sensor while the bolt is being tightened is the measurement of dynamic torque. For example, the torque at stop set by the electric screwdriver and the fixed torque air trigger and the torque when the preset torque wrench makes a “click” sound after rotating more than 270°.

Static Torque (Static Torque) is the frictional torque when the threaded fasteners in the tightened state continue to be tightened and the rotation between the threaded surfaces has just occurred. To measure, place a direct-reading torque wrench on the freshly tightened fastener. Move smoothly, continuously and evenly in the tightening direction. Apply torque to the torque wrench. until the fastener just begins to turn. The maximum torque indicated during the first few degrees of rotation is a static torque measurement. For example, when using a dial-type torque wrench or a digital-display torque wrench to check the tightening degree of threaded fasteners, memorize the torque indicated by the pointer or the display.

There is a regular mathematical model relationship between dynamic torque and static torque, which varies depending on the connection state. According to statistical laws and years of experience in the automotive industry, the following three relationships are summarized.

a. Soft connection: Static torque is lower than dynamic torque.
b. Hard coupling: Static torque is higher than dynamic torque.
c. Joint joint: Static torque approaches dynamic torque.

The difference between dynamic torque and static torque is mainly in the purpose of measurement. In general, the purpose of dynamic torque measurement is to ensure that the torque during the tightening process is qualified. The purpose of the static torque measurement is to verify whether the dynamic process is subject to variation. At the same time, it ensures the reliability of the clamping force after tightening.

More Featured Torque Sensors For Sale

Sino-Inst is a manufacturer of 120 Reaction Torque Sensor for Torque Wrench-Motor-Engine. We offer more than 20 types of Reaction Torque Sensors. Reaction Torque Sensors can measure a variety of different mechanical power, rotational speed and torque measuring devices.

Reaction Torque Sensor is also called reaction static torque sensor, torque transducer. Mainly used for torque measurement in Static situations. Reaction Torque Sensor, with key shaft connection at both end; suitable for static torque measurement.

Sino-Inst’s Reaction Torque Sensors, made in China, have good quality, with better prices. Our Reaction Torque Sensors are widely used in China, India, Pakistan, USA and other countries.

Sino-Inst’s entire team is well trained, so we can ensure that each customer’s needs are met. If you need any help with your product requirements, whether it is a Reaction Torque Sensor, level sensors, or other equipment, please give us a call.

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