вход по аккаунту



код для вставкиСкачать
Patent Translate
Powered by EPO and Google
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view of one embodiment of the
present invention, and FIG. 2 is a temperature vs. frequency characteristic diagram. E
piezoelectric, 3 · · · · · · · · · · · · · · · · · ·. Age} 製 r1 made \-159-
DETAILED DESCRIPTION OF THE INVENTION It is an object of the present invention to provide a
piezoelectric transducer having excellent temperature characteristics. Since the conventional
piezoelectric transducer uses a polymer based material such as polyacetal, polyester, etc., as well
as the material of the horn, the temperature characteristic is bad as shown by the dotted line in
FIG. This invention is an improvement of the disadvantages of such a conventional piezoelectric
transducer, and is a piezoelectric transducer having excellent temperature characteristics by
using a polymer material such as mu BS or polycarbonate as the horn material. Intended to
provide. The embodiments of the present invention will be described with reference to the
drawings. In FIG. 1, reference numeral 1 denotes a substrate, and the projections 1a and 1b of
the substrate 1 are provided with a piezoelectric element 2, and on the piezoelectric element 2, a
polymer material such as ABS or polycarbonate is used. As the horn 5 is made of a polymer
based material such as AES1 polycarbonate, as in the present invention, the material of the horn
is made of a polymer material such as AES1 polycarbonate. The change is small-C. That is, as
shown in FIG. 2, in the range of -20 ° C. to 60 ° C., the temperature change of the conventional
piezoelectric transducer is at 7 · Q KHz as shown by the dotted line. In the present invention, as
shown by the solid line, it was 2.5KHg5.
Без категории
Размер файла
7 Кб
Пожаловаться на содержимое документа