Static calibration device for portable braking performance tester based on bilateral laser digital display tilt box

In the measurement process of the portable braking performance tester, it is necessary to first ensure that the sensors of the portable braking performance tester are fixed on the calibration platform of the static calibration device of the portable braking performance tester, and then ensure that the calibration platform is in a horizontal state. This is a prerequisite for the calibration of parameters such as indication error and repeatability in subsequent static calibration. The article introduces a portable static calibration device for braking performance testing based on a dual-sided laser digital display tilt box, discusses the technical principle, structural design, and component functions of the calibration device, and proposes specific operating methods and steps for this calibration device. According to the analysis of experimental data after implementation, it can be concluded that the measurement of the portable braking performance tester using this calibration device and its operating method can meet the technical requirements of JJF1168-2007 “Portable Braking Performance Tester”.