JPH02140330U - - Google Patents
Info
- Publication number
- JPH02140330U JPH02140330U JP4564589U JP4564589U JPH02140330U JP H02140330 U JPH02140330 U JP H02140330U JP 4564589 U JP4564589 U JP 4564589U JP 4564589 U JP4564589 U JP 4564589U JP H02140330 U JPH02140330 U JP H02140330U
- Authority
- JP
- Japan
- Prior art keywords
- insulating cover
- resin
- peripheral part
- circular diaphragm
- vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
第１図はこの考案の一実施例による振動検出器
の平面図および断面図、第２図は従来の振動検出
器の平面図および断面図である。
図において、１……ベースケース、２……振動
板、３……圧電素子、４……リード線、５……樹
脂カバー、６……端子、８……鋼製カバー周辺部
である。なお、各図中同一符号は同一又は相当部
分を示す。
FIG. 1 is a plan view and a sectional view of a vibration detector according to an embodiment of the invention, and FIG. 2 is a plan view and a sectional view of a conventional vibration detector. In the figure, 1...base case, 2...diaphragm, 3...piezoelectric element, 4...lead wire, 5...resin cover, 6...terminal, 8...periphery of steel cover. Note that the same reference numerals in each figure indicate the same or equivalent parts.
Claims (1)
を接着した円形振動板と、端子を有する熱成形さ
れた樹脂製絶縁カバーと、前記円形振動板の周辺
部と前記樹脂製絶縁カバーの周辺部とを固定する
鋼製ケースとを備え、絶縁樹脂製絶縁カバーの前
記周辺部のみを鋼製としたことを特徴とする振動
検出器。 A circular diaphragm to which a disk-shaped piezoelectric element for converting vibration into an electrical signal is adhered, a thermoformed resin insulating cover having a terminal, a peripheral part of the circular diaphragm, and a peripheral part of the resin insulating cover. A vibration detector comprising a fixed steel case, and only the peripheral portion of the insulating cover made of insulating resin is made of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4564589U JPH02140330U (en) | 1989-04-20 | 1989-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4564589U JPH02140330U (en) | 1989-04-20 | 1989-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02140330U true JPH02140330U (en) | 1990-11-22 |
Family
ID=31560010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4564589U Pending JPH02140330U (en) | 1989-04-20 | 1989-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02140330U (en) |
-
1989
- 1989-04-20 JP JP4564589U patent/JPH02140330U/ja active Pending
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