JPH0383898U - - Google Patents

Info

Publication number
JPH0383898U
JPH0383898U JP1989144175U JP14417589U JPH0383898U JP H0383898 U JPH0383898 U JP H0383898U JP 1989144175 U JP1989144175 U JP 1989144175U JP 14417589 U JP14417589 U JP 14417589U JP H0383898 U JPH0383898 U JP H0383898U
Authority
JP
Japan
Prior art keywords
gate
ultrasonic
signal level
fuel cladding
receiver
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1989144175U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989144175U priority Critical patent/JPH0383898U/ja
Publication of JPH0383898U publication Critical patent/JPH0383898U/ja
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Monitoring And Testing Of Nuclear Reactors (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例の構成を示すブロツ
ク図、第２図は本考案における検査状況を説明す
るための図、第３図〜第５図はそれぞれ本考案に
おける超音波検査時の各状態における受信信号図
、第６図は本考案における第１、第２ゲートの設
定図、第７図は従来例のゲート設定図、第８図は
従来例における伝播エコー測定時の状態を示す図
、第９図は従来例におけるゲート設定図である。 １０……電子スイツチ、１１……第１ゲート、
１２……第２ゲート、１３……時間軸、１４……
トリガ、１５……パルス発生部、１６……評価装
置。 Fig. 1 is a block diagram showing the configuration of an embodiment of the present invention, Fig. 2 is a diagram for explaining the inspection situation in the present invention, and Figs. Received signal diagrams in each state, Figure 6 shows the settings of the first and second gates in the present invention, Figure 7 shows the gate settings of the conventional example, and Figure 8 shows the state during propagation echo measurement in the conventional example. 9 are gate setting diagrams in the conventional example. 10...electronic switch, 11...first gate,
12...Second gate, 13...Time axis, 14...
Trigger, 15...Pulse generator, 16...Evaluation device.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 超音波発信子および受信子をそれぞれ燃料被覆
管の両側に配置し、超音波検査により破損燃料被
覆管を検出する装置において、短時間のパルス電
圧を前記発信子に印加するパルス発生部と、前記
受信子により受信された超音波信号を入力し、一
定振幅の信号レベルＦ以上で所定時間だけ導通状
態となる第１ゲートと、前記超音波信号を入力し
、一定振幅の信号レベルＧ以下で所定時間だけ、
前記第１ゲートと評価装置との間のスイツチを導
通状態とする第２ゲートとを具備し、前記超音波
信号が前記信号レベルＦ以上で、かつ前記信号レ
ベルＧ以下の信号であるときに、前記第１ゲート
より前記評価装置に出力されるようにしてなるこ
とを特徴とする破損燃料被覆管検出装置。 An apparatus for detecting a damaged fuel cladding tube by ultrasonic inspection, in which an ultrasonic transmitter and a receiver are arranged on both sides of a fuel cladding tube, the pulse generator applying a short-time pulse voltage to the transmitter; a first gate that receives an ultrasonic signal received by the receiver and becomes conductive for a predetermined time at a signal level F or higher with a constant amplitude; Just time,
a second gate that brings a switch between the first gate and the evaluation device into a conductive state, and when the ultrasonic signal is at the signal level F or higher and at the signal level G or lower, A damaged fuel cladding detection device, wherein the first gate outputs the output to the evaluation device.
JP1989144175U 1989-12-15 1989-12-15 Pending JPH0383898U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989144175U JPH0383898U (en) 1989-12-15 1989-12-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989144175U JPH0383898U (en) 1989-12-15 1989-12-15

Publications (1)

Publication Number Publication Date
JPH0383898U true JPH0383898U (en) 1991-08-26

Family

ID=31690907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989144175U Pending JPH0383898U (en) 1989-12-15 1989-12-15

Country Status (1)

Country Link
JP (1) JPH0383898U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009011285A (en) * 2007-07-09 2009-01-22 Ygk:Kk Leader with joining element, fishhook equipped with the same, and method for setting the leader

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009011285A (en) * 2007-07-09 2009-01-22 Ygk:Kk Leader with joining element, fishhook equipped with the same, and method for setting the leader

Similar Documents

Publication Publication Date Title
US3427866A (en) Ultrasonic thickness gauge and flow detector
GB1096590A (en) Method and apparatus for the study of the walls of bore holes
GB1129655A (en) Improvements in or relating to ultrasonic measuring apparatus
JPH0383898U (en)
US4276622A (en) Ultrasonic distance measuring circuit
JPS6449984A (en) Partial discharge diagnosing device for transformer
US3789352A (en) Method and apparatus for testing depth finders
JPS57144458A (en) Ultrasonic flaw detector
SU1633354A1 (en) Sonic method for testing triple layer structures and device thereof
SU628438A2 (en) Device for measuring ultrasound velocity in materials
SU1223136A1 (en) Apparatus for determining instant of acoustic emission signal maximum
JPH041511Y2 (en)
SU1430878A1 (en) Ultrasonic apparatus for testing welded joints
JPS57124211A (en) Ultrasonic measuring device
SU627317A1 (en) Magnetic-acoustic thickness meter
JPH0352689U (en)
JPH0421921U (en)
SU1670401A1 (en) Ultrasonic thickness gauge
JPS6291272U (en)
SU1430879A1 (en) Ultrasonic device for material quality control
SU1597583A2 (en) Remote-controlled level gauge
JPH0140071Y2 (en)
JPS6042981U (en) ultrasonic switch
JPS59185659U (en) Ultrasound diagnostic equipment
JPH0259479U (en)