JPS625266U - - Google Patents
Info
- Publication number
- JPS625266U JPS625266U JP9651285U JP9651285U JPS625266U JP S625266 U JPS625266 U JP S625266U JP 9651285 U JP9651285 U JP 9651285U JP 9651285 U JP9651285 U JP 9651285U JP S625266 U JPS625266 U JP S625266U
- Authority
- JP
- Japan
- Prior art keywords
- rotation speed
- vibrator
- monostable multi
- pulse voltage
- battery
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図は本考案に係る回転数測定装置の一実施
例を示す回路図、第２図は本考案の外観図、第３
図は本考案装置のケース内部の要部の構成図、第
４図は第１図装置の動作を説明するための波形図
、第５図は本考案の特性を示す図である。
ＡＴ…エンジン・パルス検出用アンテナ、Ｃ１
…空間コンデンサ、ＭＯ…単安定マルチ・バイブ
レータ、ＺＤ…定電圧ダイオード、Ｍ…指示計。
Fig. 1 is a circuit diagram showing an embodiment of the rotation speed measuring device according to the present invention, Fig. 2 is an external view of the present invention, and Fig. 3 is a circuit diagram showing an embodiment of the rotation speed measuring device according to the present invention.
4 is a waveform diagram for explaining the operation of the device shown in FIG. 1, and FIG. 5 is a diagram showing the characteristics of the invention. AT...Antenna for engine pulse detection, C1
...Space capacitor, MO...Monostable multi-vibrator, ZD... Constant voltage diode, M... Indicator.
Claims (1)
出する検出用アンテナ、空間コンデンサを介して
得られる前記パルス電圧でトリガされエンジンの
回転数に対応した間隔のパルスを発生するＣＭＯ
Ｓのナンド・ゲートで構成した電池駆動の単安定
マルチ・バイブレータ、この単安定マルチ・バイ
ブレータの出力を定電圧ダイオードおよびフイル
タを介して加えられる指示計よりなり、前記電池
電源のオン・オフ用スイツチを不用としたことを
特徴とする回転数測定装置。 A detection antenna that detects the pulse voltage generated when the high-voltage plug is ignited, and a CMO that is triggered by the pulse voltage obtained through the spatial capacitor and generates pulses at intervals corresponding to the engine rotation speed.
A battery-powered monostable multi-vibrator composed of S NAND gates, an indicator to which the output of this monostable multi-vibrator is applied via a constant voltage diode and a filter, and an on/off switch for the battery power supply. A rotation speed measuring device characterized by eliminating the need for.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9651285U JPS625266U (en) | 1985-06-25 | 1985-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9651285U JPS625266U (en) | 1985-06-25 | 1985-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS625266U true JPS625266U (en) | 1987-01-13 |
Family
ID=30962338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9651285U Pending JPS625266U (en) | 1985-06-25 | 1985-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS625266U (en) |
-
1985
- 1985-06-25 JP JP9651285U patent/JPS625266U/ja active Pending