Ultrasonic sensor for testing U-shaped tubes of a heat exchanger

Details Ultrasonic sensor for testing U-shaped tubes of a heat exchanger Ultrasonic sensor for testing U-shaped tubes of a heat exchanger

1989-06-14

1991-01-01

Chapman, John

Measuring and testing

Vibration

By mechanical waves

G01N 2904

Patent

active

049810448

ABSTRACT:
An ultrasonic sensor for testing tubes of a heat exchanger having a U-shaped tube bundle includes a probe head unit having an ultrasonic vibrator and two opposite ends. Two flexible hollow shafts are each connected to a respective one of the ends of the probe head unit. One of the hollow shafts is rotatably supported in a guide tip and the other of the hollow shafts is rotatably supported in a cylindrical sheath. An electric drive unit is connected to and fixed against torque relative to the other hollow shaft. The flexible hollow shafts have supports at predetermined axial intervals. A sealing body is connected to the cylindrical sheath for sealing off a flow of a fluid for coupling the ultrasonic vibrator and a pusher hose is also connected to the cylindrical sheath.

REFERENCES:
patent: 4241609 (1980-12-01), Bergman et al.
patent: 4523470 (1985-06-01), Muller et al.
patent: 4586380 (1986-05-01), Patterson
patent: 4612808 (1986-09-01), McKirdy et al.
patent: 4872347 (1987-10-01), Okabe et al.

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