JPS63163406U

JPS63163406U -

Info

Publication number: JPS63163406U
Application number: JP19740986U
Authority: JP
Priority date: 1986-12-24
Filing date: 1986-12-24
Publication date: 1988-10-25

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す回路ブロツ
ク図付きの側面図、第２図及び第３図は他の実施
例を示す回路ブロツク図付きの側面図、第４図は
従来の超音波厚さ計の零点調整を示す説明図であ
る。図において１は超音波探触子、２は零点調整用
テストピース、３は超音波厚さ計のケース、４は
超音波厚さ計の機器回路、５は零調整回路である
。なお、各図中同一符号は同一または相当部分を
示す。 Fig. 1 is a side view with a circuit block diagram showing one embodiment of this invention, Figs. 2 and 3 are side views with a circuit block diagram showing other embodiments, and Fig. 4 is a conventional ultrasonic device. It is an explanatory view showing zero point adjustment of a thickness gauge. In the figure, 1 is an ultrasonic probe, 2 is a test piece for zero point adjustment, 3 is a case of an ultrasonic thickness gauge, 4 is an equipment circuit of the ultrasonic thickness gauge, and 5 is a zero adjustment circuit. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Scope of Claim for Utility Model Registration] (1) In an ultrasonic thickness gauge that adjusts the zero point by bringing an ultrasonic probe into contact with a test piece for zero point adjustment, a test piece for zero point adjustment of the ultrasonic probe; 1. An ultrasonic thickness gage comprising: a contact detection means for detecting contact with a contact surface; and a zero adjustment circuit for starting a zero point adjustment operation based on a detection result of the means. (2) Utility model registration characterized in that the contact detection means is provided in contact with the test piece and includes a sensor that detects ultrasonic waves output from the probe in contact with the test piece. The ultrasonic thickness gauge according to claim 1. (3) The contact detection means includes an insulator that electrically insulates the test piece from the surroundings, and a detection circuit that detects contact between the test piece and the probe through electrical continuity. The ultrasonic thickness gauge according to claim 1 of the utility model registration claim. (4) A request for registration of a utility model characterized in that the contact detection means includes means for movably supporting the test piece, and a starting switch for the zero adjustment circuit that is operated by pushing and displacing the test piece. range 1
Ultrasonic thickness gauge described in section.