Hitachi Construction Machinery Co., Ltd.

Hajime Mizunoya

Shigeru Miwa

Shigenori Aoki

Takenori Hiroki

Tohru Miyata

Yoshio Akutsu

Seigo Kikuchi

This portable ultrasonic detector has a moved distance instrument comprised of an encoder for detecting a moved amount and a counter for counting the moved amount signal outputted from the encoder, as a means for obtaining position information of an ultrasonic probe. When moving the ultrasonic probe on the surface of the object on the occasion of the inspection, the moved distance instrument measures the moved amount of the ultrasonic probe. The measured moved amount of the ultrasonic probe is sent to an arithmetic processing section of the device body. Also, the ultrasonic detector detects A-scope data when scanning the inspected object with the ultrasonic probe, and executes the predetermined processing by using the data. The ultrasonic detector combines the A-scope data and the moved distance data of the ultrasonic probe to make an inner scope image (B-scope image, etc). When repeatedly scanning the same spot of the object with the ultrasonic probe in order to make the B-scope image, etc. and display them on a display section, peaks of defect echo waves are memorized in piles, and further two defect images or more are displayed on the B-scope image. This ultrasonic detector is configured to draw a storage-type B-scope images. Thereby, defect images can be evaluated in detail and a defect position can be detected accurately.

Portable ultrasonic detector

A non-destructive inspection device has an inspection unit body and a support casing which is used as a set-up type device by combining the inspection unit body and the support casing in ordinary inspection, and is used as a portable type device by separating them for special inspection situations involving narrow places or high places. The support casing can be freely combined to or separated from the inspection unit body. When combining the two components, the non-destructive inspection device can carry out the inspection based on a stable set-up mode in the same way as conventional devices. When separated, the inspection unit body is used as a portable device.

Portable non-destructive inspection device and support casing therefor

Growing community of inventors

Ibaraki-ken, Japan

Hajime Mizunoya