【Weighing Instrument】Which points should be used to judge the quality of a car weighing
Automobile weighing instrument is a kind of equipment among weighing instruments. Because automobile weighing instrument is more convenient, it is chosen by more and more people. For automobile weighing instrument, we should judge its quality from those aspects. ? Now let's take a look at the quality of the car weighing instrument with the editor of Guangdong kenweigh, from which points we need to judge! ! ! Car weighing instrument is good or bad judgment point 1: The weighing accuracy of the vehicle weighing equipment is high. The weighing table of the vehicle weighing equipment has enough length to weigh the entire vehicle at one time, so it eliminates the axle measurement error The method is also difficult to be effective due to the influence of, and the weighing accuracy is high due to the long table top and many data samples. Car weighing instrument is good or bad judgment point 2: weighing principle and error analysis of weighing equipment For example: quartz weighing equipment, quartz weighing equipment is also axle weighing equipment. Quartz weighing equipment uses the principle that a piezoelectric quartz crystal generates electric charges on its surface when subjected to varying loads for weighing. It requires that the load must be variable. In other words, when the vehicle is stationary, there is no signal output and it cannot be weighed. The strength of the piezoelectric quartz output signal is not only related to the size of the load, but also to the severity of the load change. At the same time, because the quartz sensor is narrow (usually only 50mm ~ 60mm), the contact length between the tire and the ground is usually 200mm ~ 300mm, so the quartz weighing equipment partially weighs the wheels, so the speed of the vehicle and the fullness of the tire inflation will affect the weighing result. The weighing result of this equipment has a large error. The figure below shows the effect of the fullness of the tire inflation on the load of the sensor. Similarly, for axles with the same weight, different tire diameters will also cause different load distributions, which will affect the weighing results. Car weighing instrument is good or bad judgment point three: the axle group weighing dynamic steam weighing instrument weighing process The axle group weighing dynamic weighing instrument can weigh the vehicle in sections, first weigh the front axle once, and then Weigh the rear axle at one time and add up the weight of the two sections to get the weight of the whole vehicle. Because the front axle (or rear axle) is weighed at once, and because its weighing table is relatively long and the sampling data is sufficient, it can be weighed very accurately, so the weight of the whole vehicle is also very accurate. Its weighing accuracy can basically reach the accuracy of a full-vehicle weighing equipment. The above is the preliminary content that we shared today about the quality of the car weighing instrument. I hope it will be helpful to you. If you have more questions about the weighing instrument, please contact us.
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