I. Overview The SG-311 Steering Parameter Tester is the latest self-developed intelligent test instrument based on MCS-51 single-chip microcomputer, which is suitable for automobiles, tractors, construction machinery and Steering performance test of other wheeled vehicles. It can measure the free angle of steering wheel, in-situ steering force, steering wheel torque/manipulation force, corner and other static and dynamic parameters, and has RS232 interface, which can be combined with the main control computer and other testing equipment to form a flexible intelligent detection system. The whole circuit design of the instrument adopts MCS-51 series single chip microcomputer and 12-bit A/D conversion integrated circuit as the test data processing unit, Chinese character liquid crystal display, with the characteristics of accurate test data, intuitive display and stable performance. It also comes with a standard 9-pin serial interface for easy data communication with other computers. The appearance of the instrument is beautiful and easy to use. The test result can be directly displayed by the display screen or sent to the main control computer through the RS232 interface to be processed and output by the main control computer. The whole process is flexible and easy to operate. Second, the main technical parameters 1, internal power supply: DC 8.4V (2 # nickel chrome battery 7). 2, the measurement range: steering wheel torque: 0 ~ 200 Newton. Meter. Steering wheel operating force: 0~1000 Newton Steering wheel angle: 0~1440 degrees. 3. Measurement accuracy: steering wheel torque/force: < 1%. Steering wheel angle: ± 2 ° 4. Standard 9-pin RS232 interface. The baud rate is 2400, the data bit is 8 bits, the stop bit is 1 bit, there is no check digit. 3. The instrument configuration (according to the actual demand) 1. Standard RS232 interface 2. With micro printer
