JPH01180643U

JPH01180643U -

Info

Publication number: JPH01180643U
Application number: JP7112388U
Authority: JP
Priority date: 1988-05-31
Filing date: 1988-05-31
Publication date: 1989-12-26

Description

[Brief explanation of drawings]

第１図はこの考案の鋼管異材検出装置の一実施
例を示すブロツク図、第２図は発光分光分析装置
の分析原理を説明するブロツク図、第３図は検量
線の概念を示す説明図である。図において、１は発光分光分析装置、１―１は
プローブ、１―２は光フアイバ、１―３は発光分
光分析計、２は記憶手段、３は一時記憶手段、４
は警報手段、５は鋼管、１０は入口スリツト、１
１は回析格子、１２は出口スリツト、１３―１，
１３―２，１３―３…は光電子増倍管、１４―１
，１４―２，１４―３…は積分器、１５はマルチ
プレクサ、１６はＡＤ変換器、１７はインタフエ
ース、１８はＣＰＵである。 Figure 1 is a block diagram showing one embodiment of the steel pipe foreign material detection device of this invention, Figure 2 is a block diagram explaining the analysis principle of the emission spectrometer, and Figure 3 is an explanatory diagram showing the concept of a calibration curve. be. In the figure, 1 is an emission spectrometer, 1-1 is a probe, 1-2 is an optical fiber, 1-3 is an emission spectrometer, 2 is a storage means, 3 is a temporary storage means, and 4
is an alarm means, 5 is a steel pipe, 10 is an inlet slit, 1
1 is a diffraction grating, 12 is an exit slit, 13-1,
13-2, 13-3... are photomultiplier tubes, 14-1
, 14-2, 14-3... are integrators, 15 is a multiplexer, 16 is an AD converter, 17 is an interface, and 18 is a CPU.

Claims

[Scope of Claim for Utility Model Registration] Means for storing the allowable range of elements corresponding to the steel type of the steel pipe for each steel type code; Temporary storage means for receiving from the outside and temporarily storing the steel type code of the steel pipe to be inspected for different materials; an online emission spectrometer that analyzes elements contained in a steel pipe; and at least one of the analysis values of the online emission spectrometer falls within an acceptable range for the element corresponding to the steel type code stored in the temporary storage means. A steel pipe foreign material detection device comprising: an alarm means for issuing an alarm when the steel pipe is not in use;