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JPS5282374

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DESCRIPTION JPS5282374
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a
conventional ultrasonic ceramic microphone, FIG. 2 is a cross sectional view of the conventional
example, and FIG. 3 is an exploded view of the ultrasonic ceramic microphone in one
embodiment of the present invention. FIG. 4 is a perspective view, FIG. 4 is a cross-sectional view
of the same, and FIG. 5 is a sensitivity frequency characteristic diagram of the ultrasonic ceramic
microphone of the prior art and the present invention. 1 иииииии Bimorph oscillator, 2 иииии 1
piezoelectric ceramic EX и X. Fig. 1 Fig. 2 ? = 171-Fig. 4 Fig. 4 real opening 52-82374 (2) V Fig.
5 ripples-172-
[Detailed description of the invention] 1 specification 1 title of the invention *, * M @ claim at the
time of request draft 1 Resonator like resonator is attached to the center of the biphenyl
transducer and attached to the composite resonator Because it is supported by the terminal 1
[KIHIl adhesive agent, to build the double compound resonance thousand of the hi, so it is the
sound ? 7 Mittamai # four phones. , S, Invention O m m ** ? ?? ?? 3 3 O O O O 3 3 3 3 3 3
3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 -Tsuotta! Because it is a thing
in connection with itabihon. First, the conventional O ? Os super sound II! In order to explain
with the first If and $ 211 at the same time as the first one, $ 111. Piezoelectric ceramic plate 2
░ и 2 'in the $ 2 figure O! # Stick to the opposite direction and stick to 1 ? ? ? ? ? ? ? ?
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?"I, a cocoon-shaped 4concave 4-composition, makes a two-story house. 6 is a terminal board, and the above-mentioned
combined resonator 6 is bonded with an elastic adhesive te on this terminal board i1! , 51.8+ 'are
nine terminals implanted in the terminal plate 6 and lead @ 9, sr are connected to this terminal
8.8', '& the other end of this lead @e, d Is connected to the terminal of the bimorph imaging
motor 1, 10 is a cylindrical case, and since the terminal plate 6 is fixed to the open end of the
case 10, 11 is the case of X1. The other end of the hole sK mounted protection netting. However,
the above-mentioned conventional ultrasonic ceramic My # Roho / has a small mechanical
04-05-2019
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resistance of the conical resonator 4 that is small in rounding and pliability, so that a sharp
directivity of 4 is not obtained. The present invention takes the above-mentioned conventional
drawbacks into account, and as shown in FIG. 8 and fx 4, instead of the conventional conical
resonator 4, a brass-like resonator 12 consisting of one, for example, 4 il + is used. A. Because of
the bonding of the composite resonator to the protrusion IK elastomeric adhesive tearing of the
terminal plate 6 at the center of the I-morph loss mover 10. 3 In this way, in the pigeon house
provided with the single pyramidal resonator 12, the conical resonator 4 is used at the time of
resonance, and the same resonance as in the conventional example is obtained, but the resonance
frequency deviates from the resonance frequency. The vibration of the bimorph oscillator 1 is
transmitted to the resonator 12 due to the large mechanical resistance at the boundary between
the surface of the resonator 12 and the radiation is greatly attenuated and the directivity is
sharpened. The sensitivity frequency characteristics of the prior art A and the ultrasonic ceramic
vibrator B of the present invention are shown, and the north wall as in the prior art provides high
sensitivity and mirror directivity according to the present invention.
As described above, according to the present invention, a brass resonator is fixed to the center
11 of the bimorph oscillator), and according to the present invention, a highly sensitive and
sharp directivity ultrasonic ceramic microphone is obtained. It is an advantage or a reward.
04-05-2019
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