Title:
ULTRASONIC DETECTOR
Document Type and Number:
Japanese Patent JP2021165931
Kind Code:
A
Abstract:
To provide an ultrasonic detector using ultrasonic reflected waves as means for detecting moving objects that solves a problem that conventional detectors for measurement need to be installed so as to sandwich a track, which makes it difficult to secure a sufficient place.SOLUTION: An ultrasonic detector 23 is capable of outputting the elapsed time when a moving object passes through a reflecting region from a reflected wave generated when the moving object passes through the reflecting region 25 of the ultrasonic wave. The elapsed time can be output with high accuracy by reducing a measurement error due to the nature of the ultrasonic waves included in the ultrasonic detector. The ultrasonic detector solves a problem that conventional detectors need to be installed so as to sandwich measurement devices on both sides of a track, and allows for providing a measurement machine with sufficient accuracy for practical use.SELECTED DRAWING: Figure 2
Inventors:
MIYA RYUTARO
Application Number:
JP2020068946A
Publication Date:
October 14, 2021
Filing Date:
April 07, 2020
Export Citation:
Assignee:
MIYA RYUTARO
International Classes:
G07C1/24
Domestic Patent References:
| JP2018054595A | 2018-04-05 | |||
| JPS62130382A | 1987-06-12 | |||
| JPH0527053A | 1993-02-05 | |||
| JPH0486593A | 1992-03-19 | |||
| JP2006031504A | 2006-02-02 | |||
| JP2002366995A | 2002-12-20 |