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    Method and device for detecting the presence of a part in a mechanical assembly
    1.
    发明专利
    Method and device for detecting the presence of a part in a mechanical assembly 未知

    公开(公告)号：FR2600155A1

    公开(公告)日：1987-12-18

    申请号：FR8608566

    申请日：1986-06-13

    Applicant: FRAMATOME SA

    Inventor： BENARD DIDIER ,  BESLOT MICHEL ,  ISNARDON GERARD

    IPC: G01V1/00 ,  G01B15/04 ,  F16H1/38

    Abstract: Method and device for detecting the presence of a part in a mechanical assembly. According to the method, an ultrasonic emitter 10 is applied at a chosen location in the mechanical assembly and an ultrasonic receiver 12 at another location in this assembly, separated from the first by a path which of necessity passes through the member 8 whose presence it is desired to monitor, an ultrasonic wave is emitted, the time of flight of the ultrasonic wave between the emitter 10 and the receiver 12 is measured, and this measured time T is compared with at least one predetermined set-point value T0, T'0, the presence or absence of the member is deduced from the value of the difference between at least one of the set-point values T0, T'0 and the measured value T. Preferably, an upper reference value T'0 and a lower reference value T0 are determined, the measured value T is compared with T0, a signal indicating the absence of a washer is displayed if T is less than T0 or greater than T'0.

    4.
    发明专利
    未知

    公开(公告)号：FR2612291B1

    公开(公告)日：1992-05-07

    申请号：FR8703484

    申请日：1987-03-13

    Applicant: FRAMATOME SA

    Inventor： ISNARDON GERARD ,  JACQUIER PAUL ,  VOISEMBERT SYLVIE

    IPC: B24C1/10 ,  B24C3/32 ,  C21D7/06 ,  G01N29/04 ,  G01H17/00

    Abstract: The peening is carried out by means of a device comprising an outer casing (5) of tubular shape which is placed so as to bear against one face of the tubular plate around one flush end of the tube to be peened. A tool comprising a shot-spraying nozzle is mounted so as to be able to move axially in the outer casing (5). The control device comprises at least one piezoelectric sensor (20) arranged in contact with the wall of the outer casing (5), and means (23, 24) for measuring the electric signal generated in the sensor (20). The shot-spraying nozzle is brought into the outer casing (5) in the region of the sensors (20) after each operation of peening a tube. The electric voltage of the signals produced by the sensors is measured. … …

    6.
    发明专利
    未知

    公开(公告)号：FR2612291A1

    公开(公告)日：1988-09-16

    申请号：FR8703484

    申请日：1987-03-13

    Applicant: FRAMATOME SA

    Inventor： ISNARDON GERARD ,  JACQUIER PAUL ,  VOISEMBERT SYLVIE

    IPC: B24C1/10 ,  B24C3/32 ,  C21D7/06 ,  G01N29/04 ,  G01H17/00

    Abstract: The peening is carried out by means of a device comprising an outer casing (5) of tubular shape which is placed so as to bear against one face of the tubular plate around one flush end of the tube to be peened. A tool comprising a shot-spraying nozzle is mounted so as to be able to move axially in the outer casing (5). The control device comprises at least one piezoelectric sensor (20) arranged in contact with the wall of the outer casing (5), and means (23, 24) for measuring the electric signal generated in the sensor (20). The shot-spraying nozzle is brought into the outer casing (5) in the region of the sensors (20) after each operation of peening a tube. The electric voltage of the signals produced by the sensors is measured. … …

    8.
    发明专利
    未知

    公开(公告)号：DE3864046D1

    公开(公告)日：1991-09-12

    申请号：DE3864046

    申请日：1988-03-04

    Applicant: FRAMATOME SA

    Inventor： ISNARDON GERARD ,  JACQUIER PAUL ,  VOISEMBERT SYLVIE

    IPC: B24C1/10 ,  B24C3/32 ,  C21D7/06 ,  G01N29/04 ,  G01N29/00

    Abstract: The peening is carried out by means of a device comprising an outer casing (5) of tubular shape which is placed so as to bear against one face of the tubular plate around one flush end of the tube to be peened. A tool comprising a shot-spraying nozzle is mounted so as to be able to move axially in the outer casing (5). The control device comprises at least one piezoelectric sensor (20) arranged in contact with the wall of the outer casing (5), and means (23, 24) for measuring the electric signal generated in the sensor (20). The shot-spraying nozzle is brought into the outer casing (5) in the region of the sensors (20) after each operation of peening a tube. The electric voltage of the signals produced by the sensors is measured. … …

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