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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of an electromagnetic
electro-acoustic transducer according to an embodiment of the present invention, and FIG. 2 is a
method of adjusting the magnetization state of a conventional electromagnetic electro-acoustic
transducer. FIG. . 1 иииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии Coil, 8
gap gauge, 9 ииии ... Dumbar, 10 ... ... Vibration plate. Figure 1 Figure 2 Figure 2. First place +] 20
nii '*-51-
[Detailed description of the invention] With regard to wood clam millet type Wll Asahi evaluation
sounding box, the distance between the center pole and the roving field I can be freely adjusted
by KiJI4. Are both products less variable? I'm trying to be obedient-type W magnetic-type city
air-sounding echoing disguise ii, ~ or the gear between the board and the center pole, the
company of the company, the eye to wear the magnet, the former officer, Gear, A ?-113 q f 3 022 и и и и и и и и и и и и и и и и и и и и и и Retaining material (191 flif in Figure 1! Hit. In the case of -f, the
magnetic characteristics of the toe, and the variation of the components of the magnetic circuit 9
cause variation in ? $, which is a defect which makes the variation of the product inconvenient.
Adjustment of the magnetization of the conventional unbalanced electromagnetic type electric
noise 9 regenerator, as shown in 21i 71, first make the magnet more than necessary first, and
measure 4 phrases and demagnetize 4 series And и By using all alternating electromagnetic
electro-acoustic variation 11! 5 (b) was asked for the optimal magnetizing hit. 'However, when
using this 9I # e adjustment method demagnetization device p-tube needs 1, Father, Magne, To
magnetize more than necessary Magneto type 1 Aeroacoustic f-sum 1 (I) Do you move the weight
plate? Stirring to attract by the monstrous suction power. There was a problem that the
surrenderness was large 4 points ahead of the peristalsis Vc distortion. Is the present invention
the above-mentioned conventional defect? In the following, one example of the present
invention-fIIK will be described with reference to FIG. In Fig. 1, a fllt screw hole (2) is provided on
the outer periphery of 11V <re r lower play), r3) lower play above) + IIF) 4R-11ffQl-nQ5, and
consists of a non-depressive body having a ft annular shape Frame, (4) # 'i Magne of fp spoils
crushed inside the above frame (3). ), (S) A center ball made of permalloy of ferromagnetic
material, and this center ball 151 is a screw ball hole of T-plate (1) 2) through-/ ? 16 ░ above
(Magne,) (4) L casted on the L surface of tLft annular permalloy top play), (7)) is the carp on the
lower plate rl + K ? H above, and? :, Coil ('h' in the central part of the station is piped so as not to
crush the station C unter pole C5- or p8 2). The gap gauge is a gap gauge which is placed on the
L8 j plate 4, 1 and the upper plate (6), and a damper (Q и ?) is fitted to the recess of this l-up
gauge (S). Mountain-Dan Danha-1917) pole in the th part! ? ?, 0 ? is the main case. It is a
structure like the above, and the magnetic coil, magnet, magne, etc. which magnet gI * passes in
this structure, and this structure (41 ? upper plate (6) ? damper (9), ) \ M motion [0 ? ?
center ball l and so on) ? do board (!
????? 1?1 ?? ? ? ? ? и ? ? 9 ? ?, jmQn 44t ? ? One inferior circuit, center ball
(?J) ? damper IQ + and roots 9: 48-113923-04m. 4 [и to the plate 1 ? upper plate (6) magne,)
(a) ? lower plate и (1) ? center ball (5). In this way K devised an N-type electro-acoustic
transducer 4 with a center pole on the lower plate? By screwing and supporting and rotating the
center ball, it is possible to easily sense the vibration and the distance between the center ball
and the feeling of vibration. For this reason, as in the conventional example, an optimum
magnetic circuit can be obtained by rotating the center ball while looking directly at the
measuring device while using the demagnetizing device tube. Also, variations in performance due
to variations in the magnetic characteristics of the magneto, magnetic circuits, and materials may
also be eliminated by fF @ lc'Il by simply transmitting the v center pole as described above.
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