JPS4987354

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DESCRIPTION JPS4987354
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention,
in which 1 is an ultrasonic transducer, 2 is a container, 3 is a cable, 4 is a porous elastic material,
and 5 is a lubrication hole. −139−
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultrasonic
pulse transducer used in an ultrasonic flaw detector or the like. In the ultrasonic flaw detector Ic
#, in order to efficiently transmit ultrasonic pulses into the object to be detected, it is necessary
to closely attach a transducer (probe) of the ultrasonic pulse to the surface of the object to be
detected. Conventionally, a highly viscous oil is applied to the surface of the object to be
detected, and a transducer is brought into contact with the application portion. Therefore, there
was an inconvenience that it was necessary to coat the oil every time the flaw detection location
was different. The present invention provides a transducer that can be brought into close contact
with the surface of the object to be detected without applying oil as described above. The
ultrasonic transducer 1 is fixed in the container 2 and connected to a transmitter / receiver (not
shown) via a cable 3 as will be described below in the embodiment of the drawing. The container
2 is processed by an open rim, and a porous blade material (for example, a sea body) is
accommodated in a hollow chamber between the open rim and the vibrator l. And, a part of the
sponge 4 is exposed from the opening A. In addition, the sponge 2 is injected from the oil supply
hole 5 until the oil sufficiently penetrates. Therefore, when the exposed portion of the corpus
cavernosum 2 is brought into contact with the surface of the object to be detected and an
ultrasonic pulse is transmitted from the oscillator 1, the elastic corpuscle comes in close contact
with the surface of the object to be flawed and Because it is impregnated, it is possible to obtain
the same effect as applying the surface-to-be-tested surface-ized oil. Thus, according to the
present invention, ultrasonic pulses can be efficiently transmitted / received without applying oil
to the surface of the object to be detected. In addition, since a porous elastic material is used, it
can be used even if the surface of the object to be detected is slightly curved.
04-05-2019
1
04-05-2019
2