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The road friction coefficient tester is an instrument for measuring the friction coefficient of road surface, airport, runway marking paint, etc. It can also be used as a basis for determining various tire formulas by measuring the typical road friction coefficient. This instrument uses sensor technology, electronic technology and mechanical finishing technology to make the testing process simple and convenient, and it is an upgraded product of the traditional scale pendulum instrument.
two. Structural principle This instrument is a dynamic pendulum impact instrument. It is developed based on the basic principle of "the potential energy loss of the pendulum is equal to the work done by the rubber sheet at the end of the swing arm to overcome the friction of the road surface when sliding on the road surface". Compared with the traditional scale pendulum instrument, the instrument automatically measures and displays the angle and pendulum value FB (BPN), that is, anti-slip capability, which overcomes the shortcomings of the traditional pendulum instrument inaccurate reading, the same as the scale pendulum instrument 0.3 . Represents a 'BPN'.
Main technical specifications
1. Moment of swing: 615000g.mm
Pendulum weight: 1500 ± 30g
Swing center of gravity: 410 ± 5mm
2. The positive static pressure of the rubber sheet on the road surface 2263g
3. The number of times the head is tilted freely down to the point where the swing stops, no less than 70 times
4. The distance between the outer edge of the rubber sheet and the swing center is 508mm
5. The total weight of the instrument is about 14kg without software
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Nanchang Sou Bamboo Network Technology Co., Ltd. , https://www.168bamboo.com