NON-CONTACT TYPE SUBSIDENCE VALUE DETECTION SYSTEM FOR PORTABLE FALLING WEIGHT DEFLECTOMETER

摘要

Provided is a non-contact type subsidence value detection system (1) for a portable falling weight deflectometer, which comprises a base (2), a detected portable falling weight deflectometer (3), a photoelectric sensor probe (4), a power supply and control system (5) and a platform electric control system (6), wherein the platform electric control system (6) is used for controlling the base (2) and the detected portable falling weight deflectometer (3) to be subjected to operation complying with detection conditions; and the subsidence value detection system further comprises an optical vibration isolation platform (9). The detected portable falling weight deflectometer (3) is mounted on the optical vibration isolation platform (9) with a certain flatness and surface roughness. The optical vibration isolation platform (9) has a fixed range of horizontal and vertical natural frequencies, and the amplitude is within a certain range.