JPS5832656B2 - Ultrasonic probe device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an ultrasonic probe device used when inspecting a material to be inspected for defects using ultrasonic waves.

When inspecting a material to be tested using ultrasonic waves, water is used as the ultrasonic medium to flow between the probe and the material to be tested, but if this water remains on the material to be tested even after the flaw detection, it can be a problem. .

In other words, since many of the materials to be tested are made of steel, if water gets on the material after flaw detection, it will cause rust.

Furthermore, in surface wave flaw detection, when water flowing out from between the probe and the material being tested spreads out, ultrasonic waves propagate through the water, increasing attenuation and hindering flaw detection.

Conventionally, the water flowing out from between the probe and the test material was sprayed onto the test material by blowing air, but it could not be completely removed and the water had to be wiped off after the ultrasonic flaw detection. Ta.

The present invention proposes a probe device that eliminates such problems.

The invention will be explained below with reference to the drawings.

In FIG. 1, numeral 1 denotes a housing that covers three sides of a probe 2, and its cross section is U-shaped.

Reference numeral 3 denotes a shoe, a part of which is located on the end face of the housing 1, and which comes into direct contact with the specimen when the probe device is brought into contact with the specimen and is slid.

Note that the shoe 3 is provided with a hole 4.
is in communication with a first flow channel 6 which is connected to the suction mouth 5.

That is, the flow channel 6 is provided so as to surround the probe 2 and is connected to the suction port 5.

Reference numeral 7 denotes a water-absorbing body (for example, felt) provided between the probe 2 and the shoe 3, and the water absorbed by the water-absorbing body 7 flows upward together with the air 9 that enters between the shoe 3 and the test material 8. It moves, enters the flow channel 6 from the hole 4, and further reaches the suction hole 5.

Reference numeral 10 denotes an elastic body (for example, a sponge) provided between a part of the shoe 3 and the suction body 7, and acts to lightly press the water absorption body 7 against the specimen 8.

Reference numeral 11 denotes a second flow channel that supplies water 12 between the probe 2 and the specimen 8, and an on-off valve 13 is provided in the middle thereof.

FIG. 2 is a bottom view of what is shown in FIG. 3, with the probe 2
A plurality of grooves 14 are provided in the shoe 3 surrounding the water absorbent body 7 to take in air.

Since the probe device of the present invention is constructed as described above, the water supplied between the probe 2 and the test material 8 through the second flow channel 11 and used for flaw detection is absorbed. It is sucked up by capillary action in the body 7.

Then, along with the air that enters through the groove provided in the shoe, the holes 4
It enters the first flow channel 6 through the flow channel 6, and is sent through the flow channel 6 from the suction port 5 to a suction pump (not shown).

That is, the water used for flaw detection is absorbed by the water absorber 7 and does not remain on the surface of the test material 8.

As described above, the probe device of the present invention can remove the water used for flaw detection from the surface of the material to be inspected while detecting flaws, so there is no need to wipe it off after flaw detection, and furthermore, since no water remains, it is possible to remove the water used for flaw detection from the surface of the test material. This can be prevented from occurring.

Note that the elastic body 10 is not necessarily required depending on the shape or material of the shoe.

[Brief explanation of drawings]

1 and 2 show an ultrasonic probe device according to the present invention, FIG. 1 is a sectional view thereof, and FIG. 2 is a bottom view thereof, in which 1 is a housing and 2 is an ultrasonic probe. , 3 is a shoe, 4 is a hole, 5 is a suction hole, 6 is a first flow channel, 7 is a water absorbing body, 8 is a test material, 9 is air, 10 is an elastic body, 11 is a second flow channel, 12 is water, and 14 is a groove. In the drawings, the same or corresponding parts are designated by the same reference numerals.

Claims (1)

[Claims] 1. An ultrasonic probe facing the material to be tested at a predetermined distance, a housing that covers the surface of the probe other than the surface facing the material to be tested, and an air intake groove in the end face of the housing. and a shoe that forms a first flow channel between the probe and the housing for suctioning water flowing out between the probe and the test material, and is in contact with the test material. and a hole provided in the shoe and connected to the first flow channel, a water absorbing body provided between the shoe and the probe, and water between the probe and the test material. The water absorbing body absorbs the water supplied between the probe and the test material through the second flow channel, and the water is sucked through the groove. An ultrasonic probe device characterized in that the air is removed through the first flow channel.