发明名称 |
METHOD OF DISCRIMINATING SIGNAL IN ULTRASONIC TEST |
摘要 |
<p>In order to safely interfering signals caused by interfering volumina like e.g. air bubbles existing in a coupling medium from signals generated by workpiece defects in the ultrasonic testing of workpieces according to the pulse-echo-method, it is suggested that at the appearance of a signal in the time between transmitting pulse and surface echo-signal crossing an adjustable threshold during a test cycle, all signals of the same test cycle falling within the range of anticipation for workpiece defects will be suppressed.</p> |
申请公布号 |
JPS58147645(A) |
申请公布日期 |
1983.09.02 |
申请号 |
JP19830018720 |
申请日期 |
1983.02.07 |
申请人 |
NUKEMU GMBH |
发明人 |
BARUTAA SUTERUNBERUKU;FURITSUTSU SHIYURAIAA;URUSURA RUSU |
分类号 |
G01N29/06;G01N29/07;G01N29/38;G01N29/44;G01S7/52 |
主分类号 |
G01N29/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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