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Friction, wear phenomenon is extremely complex, many factors make tribology research relies heavily on testing technology, therefore, tribology tribology testing technique is an important and essential component. Scope tribology testing techniques from the field to the laboratory simulation test physical testing, tribology testing machine which is currently the main tribological test tools. Since tribological characteristics of the system in question makes tribology testing machine during the test correlation signal is accurate, reliable, and fast acquisition and processing, and testing machines running precise, controllable and intelligence issues have become increasingly prominent, and how to use the computer has hardware and software resources, the establishment of an appropriate parameter measurement and computer data acquisition and control test systems is of great significance. In this paper, tribology laboratory testing machine universal sensor signal processing technology involved, the asynchronous motor speed control and computer control technology issues for the object, analyzes the theory, research related hardware and software, computer-aided study tribology testing technology. The main innovation and research in the following areas: (a) in-depth study of the tribological testing machine with a strain gauge sensor signal processing theory and its related technologies, including amplification, filtering, transmission, interference and other technical issues, development that can truly reflect the actual tribological parameters, suitable for computer acquisition sensor signal transmitter, the transmitter with high precision, stable performance, low cost, scalability, strong features, has been in a variety of resistance strain sensor been applied, in order to provide the conditions for future research. (2) to tribology testing machine motor control as the background to study the AC induction motor with inverter control operation of the relevant issues, analysis of the inverter in the application of tribology testing technology limitations discussed speed characteristics, output rigidity and made a steady speed solution. (3) developed a PC-controlled inverter software, you can through the computer interface, extensive use of computer software resources, to achieve dynamic, continuously changing the motor speed, and in accordance with pre-set program is running. The application results confirmed: the software design is reasonable, easy to use, a good solution to tribological tests of motor speed control problems encountered. Improve the tribological test accuracy and automation. (4) Based on VB programming techniques commonly used for the study of tribology test pin on disc friction tester, has developed a set of the Windows operating system used in the inverter control, digital dig acquisition and processing and analysis - Body tribological test multifunctional software The software interface is friendly, simple operation, easy to use, and achieved good application effect. (5) widely used for tribological test disc friction tester sales force signal test questions, test the sensor structure to improve and consolidate the success of research applications sensor technology, the inverter speed control technology and meter
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