JPS5621033A - Signal discriminator - Google Patents
Signal discriminatorInfo
- Publication number
- JPS5621033A JPS5621033A JP9794279A JP9794279A JPS5621033A JP S5621033 A JPS5621033 A JP S5621033A JP 9794279 A JP9794279 A JP 9794279A JP 9794279 A JP9794279 A JP 9794279A JP S5621033 A JPS5621033 A JP S5621033A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- voltage
- pulse
- comparator
- generates
- 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
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Testing Of Engines (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
PURPOSE: To permit the ready pattern recognition of the signal without using a complicated computer or the like by discriminating the signals in consideration of the intensity of the voltage level of voltage signals and the generation order of them.
CONSTITUTION: A pressure sensor 1 generates the voltage signal based on the injection sound. Only when a fuel injection valve to which the pressure sensor 1 is installed injects fuel, a comparator 6 is supplied with the voltage signal having a voltage higher than its reference voltage before an ON signal is input to a strobe terminal 8, and generates a pulse wave. The pulse signal output from the comparator 6 is supplied to a monostable circuit 7 and shaped into a pulse signal having a proper pulse-width.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9794279A JPS5621033A (en) | 1979-07-30 | 1979-07-30 | Signal discriminator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9794279A JPS5621033A (en) | 1979-07-30 | 1979-07-30 | Signal discriminator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5621033A true JPS5621033A (en) | 1981-02-27 |
JPS633145B2 JPS633145B2 (en) | 1988-01-22 |
Family
ID=14205716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9794279A Granted JPS5621033A (en) | 1979-07-30 | 1979-07-30 | Signal discriminator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5621033A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59160855U (en) * | 1983-04-14 | 1984-10-27 | 日産自動車株式会社 | Diesel engine fuel injection timing detection device |
JP2012517556A (en) * | 2009-02-10 | 2012-08-02 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Method for detecting needle valve closure in a piezo injector |
-
1979
- 1979-07-30 JP JP9794279A patent/JPS5621033A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59160855U (en) * | 1983-04-14 | 1984-10-27 | 日産自動車株式会社 | Diesel engine fuel injection timing detection device |
JP2012517556A (en) * | 2009-02-10 | 2012-08-02 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Method for detecting needle valve closure in a piezo injector |
Also Published As
Publication number | Publication date |
---|---|
JPS633145B2 (en) | 1988-01-22 |
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