Apparatus for continuously measuring surface condition of road

Abstract

Abstract PURPOSE:To make it possible to measure the surface condition of a road night and day without being affected by weather conditions such as a wind, rain or the like and without imparting trouble to the other vehicle, a walker or the like, by constituting the titled apparatus from a laser oscillation apparatus, a photoelectric conversion apparatus and a data treating apparatus. CONSTITUTION:A power source is supplied to each part by running a vehicle 20 and laser beam emitted from a laser oscillator 24 is at first impinged to an optical system 25 to irradiate a road surface (a) with a fan shaped laser screen R while laser brightening beam R<1> along the recessed and protruded parts of the road surface (a) is revealed. In this case, laser brightening beam R' is received by a photoelectric conversion apparatus 22 to transmit an electric signal controlled corresponding to the speed of the vehicle by a pulse to a data treating apparatus where data subjected to magnetic conversion is recorded by a magnetic tape or the like. As mentioned above, because laser beam is used, the transverse section or the longitudinal section of the road surface can be measured night and day without being affected by weather conditions such as a wind, rain or the like and without imparting trouble to the other vehicle, a walker or the like because a viewable zone is narrow.

Inventors

• 👤 Shotaro Kato
• 👤 加藤　昌太郎

Bibliographic Details