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In this paper, the test methods of the Hydraulic Test-bed of Cylinder are researched, such as hydraulic cylinder stroke test, buffer test, high temperature test, internal leakage rate test ultrahigh pressure test. The measurement and control system is made up by industrial control computer, programmable logical controller, data acquisition card, analog control card and high precision sensors. The...
Traffic environment deterioration under adverse weather condition is important cause to induce traffic accident. In order to ensure traffic safety, a method to identify safety state of traffic environment must be found and the safety state should be sent to road users for reminding and guiding them in time. That is also one important content among intelligent transportation systems (ITS). This paper...
In order to ensure Avalanche Photodiode (APD) in its optimal state in Laser Gyro when temperature varies, the effect of temperature on avalanche gain is analyzed based on APD's multiplication principle, a mathematical model of false alarm ratio (FAR) and multiplication factor of APD has been established, and an actual temperature coefficient of breakdown voltage of the device is obtained by monitoring...
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