The test method of electric torque wrench mainly adopts simple test equipment, which is realized by manual loading, and has the problems of low precision, simple function and low efficiency. Foreign special torque testing equipment can achieve high detection efficiency, but it is expensive and difficult to maintain and expand.

上述因素严重影响了扭矩扳手的生产和检查。在现代测控技术中，智能仪表，总线仪表，虚拟仪表等微机测控仪表都充分利用了计算机的软硬件优势，不仅增强了参数的测量和处理功能，而且提高了性能。指标。

The above factors seriously affect the production and inspection of torque wrench. In modern measurement and control technology, intelligent instruments, bus instruments, virtual instruments and other microcomputer measurement and control instruments make full use of the advantages of computer software and hardware, which not only enhances the function of parameter measurement and processing, but also improves the
performance. Indicators.

电动扭矩扳手作为一种精密设备，风力涡轮机在自然条件差的领域中可以长期运行。为了确保风力涡轮机的长期有用运行，有必要注意风力涡轮机上的每个细节，并仔细维护每个组件。

As a kind of precision equipment, electric torque wrench can be used in the field of poor natural conditions for a long time. In order to ensure the long-term useful operation of the wind turbine, it is necessary to pay attention to every detail on the wind turbine and carefully maintain each component.

风力涡轮机的外观主要由四个部分组成：塔架，机舱，轮毂和叶片。并且这四个部分需要通过螺栓连接。因此，在风力涡轮机的安装过程中，螺栓紧固的有用性将直接影响未来风力涡轮机的正常运行和发电效率，尤其是塔架，机舱转向座椅轴承和刀片。

The appearance of the wind turbine is mainly composed of four parts: Tower, cabin, hub and blade. And these four parts need to be connected by bolts. Therefore, in the installation process of wind turbines, the usefulness of bolt tightening will directly affect the normal operation and power generation efficiency of future wind turbines, especially the tower, engine room, steering seat, bearing and blade.

气动扭矩扳手可提供精确的扭矩控制，重复精度为±5％，配备传感器和电磁阀开关，重复精度可达到±2％。气动扭矩扳手由于具有体积小，重量轻，单位重量输出功率高等特点，广泛用于矿山，石油化工，铁路，建筑等领域，可实现高扭矩输出，反作用力小，对环境污染小，且价格低廉。重型车辆的组装和维护，重型设备的装卸等广泛用于产品生产和组装线，特别是在需要大扭矩的地方。

The pneumatic torque wrench can provide precise torque control with a repeat accuracy of 1 ± 5%, equipped with sensor and solenoid valve switch, the repetition accuracy can be achieved ± 2％。 Pneumatic torque wrench is widely used in mining, petrochemical, railway, construction and other fields because of its small volume, light weight and high output power per unit weight. It can achieve high torque output, small reaction force, small environmental pollution and low price. Assembly and maintenance of heavy vehicles, loading and unloading of heavy equipment are widely used in product production and assembly lines, especially in places where large torque is required.