JPS58111987A - 圧電式警報器 - Google Patents
圧電式警報器Info
- Publication number
- JPS58111987A JPS58111987A JP57210025A JP21002582A JPS58111987A JP S58111987 A JPS58111987 A JP S58111987A JP 57210025 A JP57210025 A JP 57210025A JP 21002582 A JP21002582 A JP 21002582A JP S58111987 A JPS58111987 A JP S58111987A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- piezoelectric vibrator
- piezoelectric
- self
- resonance
- 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.)
- Granted
Links
- 230000010355 oscillation Effects 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000002902 bimodal effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57210025A JPS58111987A (ja) | 1982-11-29 | 1982-11-29 | 圧電式警報器 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57210025A JPS58111987A (ja) | 1982-11-29 | 1982-11-29 | 圧電式警報器 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58111987A true JPS58111987A (ja) | 1983-07-04 |
| JPH0139595B2 JPH0139595B2 (enrdf_load_stackoverflow) | 1989-08-22 |
Family
ID=16582566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57210025A Granted JPS58111987A (ja) | 1982-11-29 | 1982-11-29 | 圧電式警報器 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58111987A (enrdf_load_stackoverflow) |
-
1982
- 1982-11-29 JP JP57210025A patent/JPS58111987A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0139595B2 (enrdf_load_stackoverflow) | 1989-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR0130121B1 (ko) | 압전소자 구동방법과 장치 및 음향발생장치 | |
| JPS58111987A (ja) | 圧電式警報器 | |
| JPS58111988A (ja) | 圧電式警報器における音色調整回路 | |
| JPS5930278B2 (ja) | 圧電発音発振器 | |
| JPS5917591A (ja) | 圧電発音素子の駆動回路 | |
| JPS5955799U (ja) | 圧電素子利用振動板の強力変調振動装置 | |
| JPS6225039Y2 (enrdf_load_stackoverflow) | ||
| JPS5813973Y2 (ja) | 超音波振動子励振装置 | |
| JPS58143392A (ja) | 圧電振動式警音器 | |
| JPS6318073Y2 (enrdf_load_stackoverflow) | ||
| JPS58143393A (ja) | 圧電振動式警音器の駆動回路 | |
| JPS58128672U (ja) | 振動子励振回路 | |
| SU1489843A1 (ru) | Ультразвуковой автогенератор | |
| JPS6239434Y2 (enrdf_load_stackoverflow) | ||
| JPS58146298U (ja) | 圧電ブザ−発音装置 | |
| JPS61112197A (ja) | 圧電式警報器 | |
| JPS58137087U (ja) | 蚊撃退器 | |
| JPS58106774U (ja) | 物体検知装置 | |
| JPS5816698U (ja) | 圧電ブザ− | |
| JPS598961B2 (ja) | トランジスタハツシンカイロ | |
| JPS6118614U (ja) | 電圧制御発振回路 | |
| JPS5956990U (ja) | 圧電振動子の駆動回路 | |
| JPS5823008U (ja) | 録音出力回路 | |
| JPS59141398U (ja) | 電子ブザ−の駆動回路 | |
| JPS6150582U (enrdf_load_stackoverflow) |