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BRIEF DESCRIPTION OF THE DRAWINGS The attached drawings show an embodiment of the
present invention, and FIG. 1 is a longitudinal side view, FIG. 2 is a plan view of FIG. 1 along line
A-A, and FIG. FIG. 1-outer case, 2-tube portion, 5-ultrasonic transducer, 10 → piezoelectric
pickup element, 14.15 · 16 ° 17 → lead wire.
Description of invention] 11 The present invention is hung in the water from Funabatano
Ultrasonic transmitting and its 1 ... underwater detector 1, for transducing a fish finder or the like
for the reception of the reflected wave It relates to the head. 11 Large scale precision
instruments such as ocean measuring instruments are super l! +7 An acoustic wave transmitter
and a receiver for reflected waves are provided separately. -7, 7P, J, but for fish finders used for
leisure or relatively small scale fisheries-1 The ultrasonic transducer which has both use of wave
and wave reception, the device L11 ultrasonic wave transmission to the transmission / reception
head, for example, the maximum detection water depth capability is set as 200m, and Taimino 4
which can receive the reflected wave after transmission. . To send a signal. However, if the depth
of knowledge 7 is shallow, there are 8 points at which the transmission of the ultrasonic pulse is
not completed and the reflected wave is received to cause interference of the transmission /
reception recording. The present invention eliminates this drawback. An embodiment of the
present invention will be described with reference to the attached drawings. 1 '/ is an outer case
13 made of rubber or synthetic resin, and a tube 15 neck portion formed with an attachment
screw 3 screwed and connected to a disposable lead tube (not shown) 11 or the like made of
rubber or the like The pressure L-P, the ultrasonic wave formed by bonding the electrodes 7 to
the both sides of the 31 plate, and the vibrator S are provided in the inner space portion of the
outer case l. An ultrasonic reflector 9 such as cork or I-speaker is packed and fixed, and a cablelike pick 10 surrounding the outer periphery of the reflector 9 is made htic & inside the outer
case l. The cable-shaped pick-up 10 described above covers 17 g of synthetic resin or rubber in
which a mold ceramic powder is dispersed on the outer periphery of the core kl / constituting
the center electrode, as shown in FIG. 37, Furthermore, the flexible piezoelectric material is
formed by forming an IO conductive layer 13 forming an outer side electrode on the outer
periphery 11 of the flexible piezoelectric material, and as shown in FIG. The ultrasonic transducer
j described by 1 □ nu is a supersonic wave transmitter a, and the piezoelectric pickup element IO
is a reflected wave receiver b15, and the transmitter a and its transmitter a There is a ring P, a
receiver surrounding the ring 41, or one inside of the outer case l. Electrode 7 of ultrasonic
transducer S, lead wire / da connected to gap, tel, pickup element i. The lead wire 16.17
connected to the center electrode (core IiA / l) 2 outer electrode (conductive layer / 3) is bent to
the tube neck 2. The transmission / reception head of the present invention has a constant short
period, which is transmitted by an axis current transmitter d in this device (not shown). IK IK 1 L
さ れ ↑ 1 1 1 1 1 1 1 1 1 送信 送信 送信 送信 送信 送信 送信 送信 送信 発 振 発 振 発 振 1− 1−
1− 1− 1− 1 The reflected wave vibration is converted into an electric signal, which is
transmitted to the reception amplifier of this machine by means of the lead line 16/7.
The 15 devices of the present invention are clarified by the explanation of the above embodiment
P, 5 methods of condensation for transmission only inside one transmission / reception head,
wave transmission ia ,! :, The reflection wave receiver for receiving wave is set up, and it becomes
a beam structure, but the timing of the 7 reflection wave of 7 reflection waves of super 1
combined wave transmission because it is shallow at the bottom of the water, it will be two cities
Even if there is, the reflected wave reception function is There is no risk of causing confusion
that would totally disable the discrimination of the transmission signal Yoshi received signal 7
and that the reflected wave wave receiving piezoelectric pickup element IO is cable-like and
flexible. The piezoelectric electron is carried around the outer periphery of the ultrasonic wave
transmitter 10a and is mounted together with the wave transmitter a11 in the outer case. There
are also benefits such as making it easy to produce. Brief description of 111Alp blood 15
attached medical surface shows one embodiment of the present invention, FIG. 1 is a 2.6
longitudinal side view, FIG. 2 is an A-A axis cross-sectional view of FIG. 3 is a partially cutaway
perspective view 2 when 1 is an extension of the pickup element. 1 /-outer case, co-control 1
ultrasonic transducer 1,. 10-1 Piezoelectric pick-up element, / 、, /3-/l1.1/7 → Lead wire
applicant H-Honto Tokusyu Co., Ltd.,-Atsushi Atsushibe, H-agent Matsuura Kitahiro + 5 Fig. 14F)
1716i, 互, 48 4 891, 1 [AA 0 675: 31 12 1376 ′ ′ 681 i-no 4; 6.) Inventors other than the
above, utility model registration applicants or agents Representative address Ibuka-cho, No. 1,
Ibuka-cho, Naka-ku, Nagoya, Japan Hon. 7, □--3 乙-J "
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