JPH1152089A - Checking method for fuel rod dimension inspection device and reference gauge for calibration used for it - Google Patents
Checking method for fuel rod dimension inspection device and reference gauge for calibration used for itInfo
- Publication number
- JPH1152089A JPH1152089A JP9209414A JP20941497A JPH1152089A JP H1152089 A JPH1152089 A JP H1152089A JP 9209414 A JP9209414 A JP 9209414A JP 20941497 A JP20941497 A JP 20941497A JP H1152089 A JPH1152089 A JP H1152089A
- Authority
- JP
- Japan
- Prior art keywords
- fuel rod
- calibration
- gauge
- inspection device
- measurement
- 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.)
- Granted
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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、燃料棒寸法検査装
置の測定精度チェック方法及びこれに用いる校正用基準
ゲージに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for checking the measurement accuracy of a fuel rod size inspection apparatus and a reference gauge for calibration used in the method.
【０００２】[0002]
【従来の技術】原子燃料棒は、被覆管内部に燃料ペレッ
トを充填し、被覆管両端に端栓を取り付けてこの燃料ペ
レットを封入した直線状の管状部材である。そして、こ
の原子燃料棒は、その全長が約４ｍにもわたる長尺部材
であるため、製造工程において全長についての誤差が大
きくなったり、湾曲等の曲がりが発生したり、あるいは
両端の端栓取付平行度の誤差が大きくなったりする不具
合が発生する可能性がある。2. Description of the Related Art A nuclear fuel rod is a straight tubular member in which fuel pellets are filled inside a cladding tube, end plugs are attached to both ends of the cladding tube, and the fuel pellets are sealed. Since this nuclear fuel rod is a long member having a total length of about 4 m, errors in the total length increase in the manufacturing process, bending such as bending occurs, or end plugs at both ends are attached. There is a possibility that an error such as an increase in the parallelism error occurs.
【０００３】このような不具合の発生を看過すると、原
子炉内での原子燃料棒の取付作業に支障をきたすばかり
か、長期間にわたる原子炉の運転期間中において原子燃
料棒を損傷させてしまう原因ともなりかねない。そこ
で、被覆管両端への端栓取付を終えた燃料棒を燃料棒寸
法検査装置に装着し、この装置により所定項目について
の寸法検査を実施して、上記不具合が発生しないように
している。If such problems are overlooked, not only does it hinder the installation of the nuclear fuel rods in the nuclear reactor, but also cause damage to the nuclear fuel rods during the long-term operation of the nuclear reactor. It could be. Therefore, the fuel rods whose end plugs have been attached to both ends of the cladding tube are mounted on a fuel rod dimensional inspection device, and a dimensional inspection of a predetermined item is performed by this device to prevent the above-mentioned problem from occurring.
【０００４】図３は、この燃料棒寸法検査装置の構成を
示す説明図である。この図に示すように、本検査装置
は、両端部に上部端栓２ａ及び下部端栓２ｂが取り付け
られた燃料棒１の全長Ｌを測定するためのリニアスケー
ル３と、燃料棒１の曲がり量を測定するための複数の接
触式変位センサ４と、端栓２の取付平行度を測定するた
めの複数のレーザセンサ５とを備えている。FIG. 3 is an explanatory view showing the configuration of the fuel rod size inspection device. As shown in this figure, the present inspection apparatus comprises a linear scale 3 for measuring the total length L of a fuel rod 1 having an upper end plug 2a and a lower end plug 2b attached to both ends, and a bending amount of the fuel rod 1. And a plurality of laser sensors 5 for measuring the parallelism of the mounting of the end plug 2.
【０００５】図４（ａ），（ｂ）は、接触式変位センサ
４の取付状態を示す側面図及び正面図である。変位セン
サ４は、燃料棒１を載置するＶブロック６に取り付けら
れており。燃料棒１に対して進退動する可動棒８の先端
に接触子７が取り付けられている。そして、接触子７が
燃料棒１の外周面と接触する位置から燃料棒１の断面中
心の位置を演算し、燃料棒１の軸長方向の複数個所にお
ける断面中心位置に基づき、燃料棒１の曲がり量を演算
するようになっている。FIGS. 4A and 4B are a side view and a front view showing a mounted state of the contact type displacement sensor 4. FIG. The displacement sensor 4 is attached to a V block 6 on which the fuel rod 1 is placed. A contact 7 is attached to the tip of a movable rod 8 that moves forward and backward with respect to the fuel rod 1. Then, the position of the center of the cross section of the fuel rod 1 is calculated from the position where the contact 7 comes into contact with the outer peripheral surface of the fuel rod 1. The amount of bending is calculated.
【０００６】[0006]
【発明が解決しようとする課題】ところで、上記のよう
な燃料棒寸法検査装置により数多くの燃料棒１の寸法検
査を行っていくうちに、各センサ及びスケールの経年変
化あるいは振動等に起因する各センサ及びスケールの取
付位置の変動などにより、測定精度が次第に低下してく
る。したがって、一定期間経過毎に各センサ及びスケー
ルの測定精度をチェックする必要がある。この測定精度
のチェックは、従来から、各センサ及びスケールを燃料
棒寸法検査装置から取り外し、個別に実施されていた。As the dimensional inspection of a large number of fuel rods 1 is performed by the above-described fuel rod dimensional inspection apparatus, each sensor and the scale caused by aging, vibration, etc. The measurement accuracy gradually decreases due to a change in the mounting position of the sensor and the scale. Therefore, it is necessary to check the measurement accuracy of each sensor and scale every fixed period. The check of the measurement accuracy has been conventionally performed individually by removing each sensor and scale from the fuel rod size inspection device.
【０００７】しかし、このような従来からの測定精度チ
ェック方法は、各センサ及びスケールの取り外し及び取
り付けに少なからず時間及び労力を要し、さらに、その
間は装置の運転は停止せざるを得ないために、稼働率が
低下してしまうなどの問題が発生していた。However, such a conventional measuring accuracy check method requires a considerable amount of time and effort to remove and attach each sensor and scale, and furthermore, the operation of the apparatus must be stopped during that time. In addition, problems such as a decrease in the operation rate have occurred.
【０００８】本発明は上記事情に鑑みてなされたもので
あり、測定精度のチェックの簡単な実施を可能にし、も
って稼働率の低下を抑制することが可能な燃料棒寸法検
査装置の測定精度チェック方法及びこれに用いる校正用
基準ゲージを提供することを目的としている。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and enables a simple check of the measurement accuracy to be performed, thereby suppressing a decrease in the operation rate. It is an object of the present invention to provide a method and a calibration reference gauge used for the method.
【０００９】[0009]
【課題を解決するための手段】上記課題を解決するため
の手段として、請求項１記載の発明は、燃料棒の全長を
測定するための全長測定用リニアスケール、燃料棒の曲
がりを測定するための曲がり測定用接触式変位センサ、
燃料棒の端栓取付平行度を測定するための平行度測定用
レーザセンサを備えた燃料棒寸法検査装置の測定精度チ
ェック方法において、最初に、前記燃料棒の全長、曲が
り、及び端栓取付平行度の各測定項目に関して所定の基
準値を有する形状に形成された校正用基準ゲージを前記
燃料棒寸法検査装置に装着し、この校正用基準ゲージに
対してこの各測定項目についての測定を行い、次いで、
前記所定の基準値と異なる他の寸法に形成された校正用
変位ゲージを前記燃料棒寸法検査装置に装着し、この校
正用変位ゲージに対して前記各測定項目についての測定
を行い、その後、前記校正用基準ゲージ及び前記校正用
変位ゲージの各測定値間の偏差が所定範囲内にあるか否
かを判別することにより、前記燃料棒寸法検査装置の測
定精度の合否をチェックする、ことを特徴とする。As means for solving the above-mentioned problems, the invention according to claim 1 is directed to a linear scale for measuring the entire length of a fuel rod, and for measuring the bending of a fuel rod. Contact type displacement sensor for bending measurement,
In the measurement accuracy check method of the fuel rod size inspection device provided with a parallelism measuring laser sensor for measuring the parallelism of the end plug mounting of the fuel rod, first, the overall length of the fuel rod, the bending, and the parallelism of the end plug mounting A calibration reference gauge formed in a shape having a predetermined reference value for each measurement item of the degree is attached to the fuel rod size inspection device, and the measurement for each measurement item is performed on the calibration reference gauge, Then
A calibration displacement gauge formed in another dimension different from the predetermined reference value is mounted on the fuel rod size inspection device, and the calibration displacement gauge is measured for each of the measurement items. Determining whether or not the deviation between the respective measured values of the calibration reference gauge and the calibration displacement gauge is within a predetermined range, thereby checking whether the measurement accuracy of the fuel rod size inspection device is acceptable or not. And
【００１０】請求項２記載の発明は、燃料棒の全長、曲
がり、及び端栓取付平行度の各測定項目に関して所定の
基準値を有する形状に形成した校正用基準ゲージと、前
記所定の基準値と異なる他の寸法に形成した校正用変位
ゲージと、から成ることを特徴とする。According to a second aspect of the present invention, there is provided a calibration reference gauge formed in a shape having a predetermined reference value with respect to each measurement item of the total length, bending, and end plug mounting parallelism of the fuel rod, and the predetermined reference value. And a displacement gauge for calibration formed in another size different from the above.
【００１１】請求項３記載の発明は、請求項２記載の発
明において、前記校正用変位ゲージは、前記校正用基準
ゲージの径と同一の径及び異なる径を有する区間が交互
に形成されており、この異なる径を有する区間が形成さ
れている位置は、燃料棒の曲がりを測定するための曲が
り測定用接触式変位センサの設置位置に対応している、
ことを特徴とする。According to a third aspect of the present invention, in the second aspect of the present invention, the calibration displacement gauge is formed such that sections having the same diameter as the diameter of the calibration reference gauge and a different diameter are alternately formed. The position where the section having the different diameter is formed corresponds to the installation position of the bending displacement contact type displacement sensor for measuring the bending of the fuel rod.
It is characterized by the following.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施形態を図に基
づき説明する。図１（ａ），（ｂ）は本実施形態に係る
測定精度チェック方法に用いられる校正用基準ゲージを
示すものであり、この校正用基準ゲージを校正する一対
の校正用基準ゲージ９及び校正用変位ゲージ１０の各形
状を示す斜視図である。これらの図に示すように、校正
用基準ゲージ９は、全長Ｌ0で直径φＡ0の燃料棒１に相
当する部分と、下部端栓２ｂに相当する一方の端部（直
径φＢ0）と、上部端栓２ａに相当する他方の端部（直
径φＣ0）とを有している。また、校正用変位ゲージ１
０も、校正用基準ゲージ９と同様に、燃料棒１に相当す
る部分と、下部端栓２ｂに相当する一方の端部、及び上
部端栓２ａに相当する他方の端部とを有しているが、全
長はＬ0よりも短い値であるＬ1となっており、一方及び
他方の端部の直径もφＢ0及びφＣ0よりも小さな値であ
るφＢ1，φＣ1となっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1A and 1B show a calibration reference gauge used in the measurement accuracy checking method according to the present embodiment, and a pair of calibration reference gauges 9 and a calibration reference gauge 9 for calibrating the calibration reference gauge. It is a perspective view showing each shape of displacement gauge 10. As shown in these figures, the calibration reference gauge 9 includes a portion corresponding to the fuel rod 1 having a total length L0 and a diameter φA0, one end corresponding to the lower end plug 2b (diameter φB0), and an upper end plug. 2a (the diameter φC0). In addition, displacement gauge for calibration 1
0 also has a portion corresponding to the fuel rod 1, one end corresponding to the lower end plug 2b, and the other end corresponding to the upper end plug 2a, similarly to the calibration reference gauge 9. However, the total length is L1, which is a value shorter than L0, and the diameters of one and the other ends are also φB1, φC1, which are smaller than φB0 and φC0.
【００１３】校正用変位ゲージ１０は、全長Ｌ1の範囲
内において、校正用基準ゲージ９の直径φＡ0と同一の
径を有する部分と、φＡ0よりも小さな直径φＡ1を有す
る部分とが一定区間毎に交互に形成されている。そし
て、この直径φＡ1を有する部分が形成されている区間
の位置は、図３に示した接触式変位センサ４の設置位置
に対応したものとなっている。In the displacement gauge 10 for calibration, a portion having the same diameter as the diameter φA0 of the reference gauge 9 for calibration and a portion having a diameter φA1 smaller than φA0 are alternately arranged at regular intervals within the range of the total length L1. Is formed. The position of the section where the portion having the diameter φA1 is formed corresponds to the installation position of the contact displacement sensor 4 shown in FIG.
【００１４】上記の校正用基準ゲージ９は、燃料棒寸法
検査装置に装着された状態において、燃料棒１の全長、
曲がり、及び端栓取付平行度の各測定項目に関して所定
の基準値を有するように形成されている。同様に、校正
用変位ゲージ１０も、燃料棒寸法検査装置に装着された
状態において、燃料棒１の全長、曲がり、及び端栓取付
平行度の各測定項目に関して上記所定の基準値から所定
量だけ変位させた値を有するように形成されている。When the calibration reference gauge 9 is mounted on the fuel rod size inspection device, the entire length of the fuel rod 1 is measured.
It is formed so as to have a predetermined reference value for each measurement item of bending and end plug attachment parallelism. Similarly, when the calibration displacement gauge 10 is mounted on the fuel rod size inspection device, the predetermined length from the above-mentioned predetermined reference value is determined by a predetermined amount with respect to each measurement item of the fuel rod 1 in total length, bending, and end plug mounting parallelism. It is formed to have a displaced value.
【００１５】次に、上記のような校正用基準ゲージ９及
び校正用変位ゲージ１０を用いて行う、本発明の実施形
態に係る燃料棒寸法検査装置の測定精度チェック方法に
つき説明する。検査員は、まず、校正用基準ゲージ９を
燃料棒寸法検査装置に装着し、通常の燃料棒寸法検査作
業と同様に、校正用基準ゲージ９に対して全長、曲が
り、及び端栓取付平行度の各測定項目を測定する。Next, a method of checking the measurement accuracy of the fuel rod size inspection apparatus according to the embodiment of the present invention, which is performed using the above-described calibration reference gauge 9 and calibration displacement gauge 10, will be described. The inspector first attaches the calibration reference gauge 9 to the fuel rod size inspection device, and, like the normal fuel rod size inspection work, makes the calibration reference gauge 9 full length, bend, and end plug attachment parallelism. Measure each measurement item.
【００１６】次いで、この校正用基準ゲージ９を取り外
し、校正用変位ゲージ１０を燃料棒寸法検査装置に装着
する。そして、校正用基準ゲージ９と同様に、校正用変
位ゲージ１０に対して全長、曲がり、及び端栓取付平行
度の各測定項目を測定する。上記のように、校正用基準
ゲージ９及び校正用変位ゲージ１０に対する各測定項目
の測定が終了したら、これらの各測定値間の偏差が所定
範囲内にあるか否かを判別し、これにより燃料棒寸法検
査装置の各センサ及びスケールについての測定精度の合
否をチェックするようにする。Next, the calibration reference gauge 9 is removed, and the calibration displacement gauge 10 is mounted on the fuel rod size inspection device. Then, similarly to the calibration reference gauge 9, the measurement items of the total length, the bending, and the parallelism of the end plug attachment are measured for the calibration displacement gauge 10. As described above, when the measurement of each measurement item with respect to the calibration reference gauge 9 and the calibration displacement gauge 10 is completed, it is determined whether or not the deviation between these measurement values is within a predetermined range, thereby determining the fuel. The pass / fail of the measurement accuracy for each sensor and scale of the rod size inspection device is checked.
【００１７】例えば、接触式変位センサ４の測定精度の
合否につき図２を参照しつつ説明すると、校正用基準ゲ
ージ９の燃料棒に対応する部分の径の測定値がφＡ0で
あり、この部分のφＡ0を所定量だけ変位させた部分の
値がφＡ1であるから、変位センサ４の接触子７の実際
の移動量ｘは、ｘ＝（φＡ0−φＡ1）／２ となる。一
方、この（φＡ0−φＡ1）／２ の正しい値は、校正用
基準ゲージ９及び校正用変位ゲージ１０に対する他の測
定方法により予め求められている。したがって、（φＡ
0−φＡ1）／２の値に関し、他の方法により予め求めら
れている正しい値と、変位センサ４による測定値との偏
差が所定範囲内にあるか否かを判別することにより、変
位センサ４の測定精度の合否をチェックすることができ
る。この場合、校正用変位ゲージ１０には、φＡ0及び
φＡ1の径の異なる部分が一定区間毎に交互に形成され
ており、しかも、この直径φＡ1を有する部分が形成さ
れている区間の位置は、接触式変位センサ４の設置位置
に対応したものとなっているので、軸長方向に沿って配
設された複数の変位センサ４の全てに対して、その測定
精度の合否を個別にチェックすることができる。For example, the pass / fail of the measurement accuracy of the contact type displacement sensor 4 will be described with reference to FIG. 2. The measured value of the diameter of the portion of the calibration reference gauge 9 corresponding to the fuel rod is φA 0, Since the value of the portion obtained by displacing φA0 by a predetermined amount is φA1, the actual displacement x of the contact 7 of the displacement sensor 4 is x = (φA0−φA1) / 2. On the other hand, the correct value of (φA0−φA1) / 2 is obtained in advance by another measurement method for the calibration reference gauge 9 and the calibration displacement gauge 10. Therefore, (φA
With respect to the value of (0−φA1) / 2, it is determined whether or not a deviation between a correct value obtained in advance by another method and a value measured by the displacement sensor 4 is within a predetermined range. Pass / fail of the measurement accuracy can be checked. In this case, portions having different diameters of φA0 and φA1 are alternately formed on the calibration displacement gauge 10 at regular intervals, and the positions of the sections where the portions having the diameter φA1 are formed are in contact with each other. Since it corresponds to the installation position of the displacement sensor 4, it is possible to individually check whether or not the measurement accuracy is satisfactory for all of the plurality of displacement sensors 4 arranged along the axial direction. it can.
【００１８】燃料棒寸法検査装置の全長測定用リニアス
ケール３及び端栓取付平行度測定用レーザセンサ５の各
測定精度についても、上記と同様の方法により、その合
否をチェックすることができる。このようなチェック方
法は、通常の燃料棒の寸法検査と同様の作業によって行
うことができるので、各センサ及びスケールを燃料棒寸
法検査装置から取り外して個別に行う必要がなくなる。
また、このようなチェック方法によれば、リニアスケー
ル３、変位センサ４、及びレーザセンサ５の全てに対す
る測定精度のチェックをほぼ同時に行うことができる。
したがって、測定精度のチェック作業のために燃料棒寸
法検査装置の稼働率が低下することを防止できる。The measurement accuracy of the linear scale 3 for measuring the entire length of the fuel rod size inspection apparatus and the laser sensor 5 for measuring the parallelism of the end plugs can be checked for pass / fail by the same method as described above. Since such a checking method can be performed by the same operation as that of a normal fuel rod size inspection, it is not necessary to remove each sensor and scale from the fuel rod size inspection device and individually perform them.
Further, according to such a checking method, it is possible to check the measurement accuracy for all of the linear scale 3, the displacement sensor 4, and the laser sensor 5 almost simultaneously.
Therefore, it is possible to prevent the operating rate of the fuel rod size inspection device from being reduced due to the work of checking the measurement accuracy.
【００１９】[0019]
【発明の効果】以上のように、本発明によれば、各セン
サ及びスケールを燃料棒寸法検査装置から取り外して個
別に行う必要がなくなるので、測定精度のチェックを簡
単に実施することができ、もって燃料棒寸法検査装置稼
働率の低下を抑制することが可能になる。As described above, according to the present invention, since it is not necessary to remove each sensor and scale from the fuel rod size inspection device and perform them individually, it is possible to easily check the measurement accuracy. This makes it possible to suppress a decrease in the operating rate of the fuel rod size inspection device.
【図１】本発明の実施形態において使用するゲージの形
状を示す斜視図であり、（ａ）は校正用基準ゲージにつ
いての斜視図、（ｂ）は校正用変位ゲージについての斜
視図。FIG. 1 is a perspective view showing a shape of a gauge used in an embodiment of the present invention. FIG. 1 (a) is a perspective view of a calibration reference gauge, and FIG. 1 (b) is a perspective view of a calibration displacement gauge.
【図２】本発明の実施形態における曲がり測定用接触式
変位センサの測定精度チェック方法についての説明図。FIG. 2 is an explanatory diagram illustrating a measurement accuracy check method of a contact displacement sensor for bending measurement according to the embodiment of the present invention.
【図３】従来の燃料棒寸法検査装置の構成を示す説明
図。FIG. 3 is an explanatory diagram showing a configuration of a conventional fuel rod size inspection device.
【図４】図３における接触式変位センサの取付状態を示
す説明図であり、（ａ）は側面図、（ｂ）は正面図。4A and 4B are explanatory views showing a mounting state of the contact displacement sensor in FIG. 3, wherein FIG. 4A is a side view and FIG.
１ 燃料棒 ２ 端栓 ３ リニアスケール ４ 変位センサ ５ レーザセンサ ６ Ｖブロック ７ 接触子 ８ 可動棒 ９ 校正用基準ゲージ １０ 校正用変位ゲージ DESCRIPTION OF SYMBOLS 1 Fuel rod 2 End plug 3 Linear scale 4 Displacement sensor 5 Laser sensor 6 V block 7 Contact 8 Moving rod 9 Calibration reference gauge 10 Calibration displacement gauge
Claims (3)
リニアスケール、燃料棒の曲がりを測定するための曲が
り測定用接触式変位センサ、燃料棒の端栓取付平行度を
測定するための平行度測定用レーザセンサを備えた燃料
棒寸法検査装置の測定精度チェック方法において、 最初に、前記燃料棒の全長、曲がり、及び端栓取付平行
度の各測定項目に関して所定の基準値を有する形状に形
成された校正用基準ゲージを前記燃料棒寸法検査装置に
装着し、この校正用基準ゲージに対してこの各測定項目
についての測定を行い、 次いで、前記所定の基準値と異なる他の寸法に形成され
た校正用変位ゲージを前記燃料棒寸法検査装置に装着
し、この校正用変位ゲージに対して前記各測定項目につ
いての測定を行い、 その後、前記校正用基準ゲージ及び前記校正用変位ゲー
ジの各測定値間の偏差が所定範囲内にあるか否かを判別
することにより、前記燃料棒寸法検査装置の測定精度の
合否をチェックする、 ことを特徴とする燃料棒寸法検査装置の測定精度チェッ
ク方法。1. A linear scale for measuring the entire length of a fuel rod, a contact displacement sensor for measuring a bend of the fuel rod for measuring a bend of the fuel rod, and a parallelism for measuring the parallelism of the end plug of the fuel rod. In a measurement accuracy check method of a fuel rod size inspection device provided with a laser sensor for parallelism measurement, first, a shape having a predetermined reference value for each measurement item of the overall length, bending, and end plug attachment parallelism of the fuel rod The calibration reference gauge formed in the above is mounted on the fuel rod size inspection device, and the measurement is performed for each of the measurement items with respect to the calibration reference gauge, and then the measurement is performed to another dimension different from the predetermined reference value. The formed displacement gauge for calibration is attached to the fuel rod size inspection device, and the measurement for each of the measurement items is performed on the displacement gauge for calibration. By determining whether or not the deviation between the respective measured values of the calibration displacement gauge is within a predetermined range, it is checked whether or not the measurement accuracy of the fuel rod size inspection device is acceptable. A method for checking the measurement accuracy of an inspection device.
度の各測定項目に関して所定の基準値を有する形状に形
成した校正用基準ゲージと、 前記所定の基準値と異なる他の寸法に形成した校正用変
位ゲージと、 から成ることを特徴とする燃料棒寸法検査装置の測定精
度チェック方法に用いる校正用基準ゲージ。2. A calibration reference gauge formed in a shape having a predetermined reference value for each measurement item of the total length, bending, and parallelism of end plug mounting of a fuel rod, and another dimension different from the predetermined reference value. A calibration reference gauge used for a measurement accuracy check method of a fuel rod size inspection device, comprising: a formed displacement gauge for calibration;
ゲージの径と同一の径及び異なる径を有する区間が交互
に形成されており、この異なる径を有する区間が形成さ
れている位置は、燃料棒の曲がりを測定するための曲が
り測定用接触式変位センサの設置位置に対応している、 ことを特徴とする請求項２記載の燃料棒寸法検査装置の
測定精度チェック方法に用いる校正用基準ゲージ。3. The displacement gauge for calibration has sections having the same diameter as the diameter of the reference gauge for calibration and sections having different diameters are alternately formed, and the position where the section having the different diameter is formed is 3. The calibration method according to claim 2, wherein the sensor corresponds to a position of a contact displacement sensor for measuring the bending of the fuel rod for measuring the bending of the fuel rod. Reference gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09209414A JP3100925B2 (en) | 1997-08-04 | 1997-08-04 | Method for checking measurement accuracy of fuel rod size inspection device and calibration gauge used therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09209414A JP3100925B2 (en) | 1997-08-04 | 1997-08-04 | Method for checking measurement accuracy of fuel rod size inspection device and calibration gauge used therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1152089A true JPH1152089A (en) | 1999-02-26 |
| JP3100925B2 JP3100925B2 (en) | 2000-10-23 |
Family
ID=16572493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09209414A Expired - Fee Related JP3100925B2 (en) | 1997-08-04 | 1997-08-04 | Method for checking measurement accuracy of fuel rod size inspection device and calibration gauge used therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3100925B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8885789B2 (en) | 2008-09-15 | 2014-11-11 | Areva Nc | Device for measuring and correcting a parallelism error in a nuclear fuel rod |
| CN104848767A (en) * | 2015-06-08 | 2015-08-19 | 广西玉柴机器股份有限公司 | Tool for measuring diameter of external circle of crankshaft |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0619020U (en) * | 1992-07-31 | 1994-03-11 | 武蔵精密工業株式会社 | Manuscript table |
-
1997
- 1997-08-04 JP JP09209414A patent/JP3100925B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8885789B2 (en) | 2008-09-15 | 2014-11-11 | Areva Nc | Device for measuring and correcting a parallelism error in a nuclear fuel rod |
| CN104848767A (en) * | 2015-06-08 | 2015-08-19 | 广西玉柴机器股份有限公司 | Tool for measuring diameter of external circle of crankshaft |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3100925B2 (en) | 2000-10-23 |
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