JPS5548616A - Signal process system for hot-wire type air flow meter - Google Patents
Signal process system for hot-wire type air flow meterInfo
- Publication number
- JPS5548616A JPS5548616A JP12284378A JP12284378A JPS5548616A JP S5548616 A JPS5548616 A JP S5548616A JP 12284378 A JP12284378 A JP 12284378A JP 12284378 A JP12284378 A JP 12284378A JP S5548616 A JPS5548616 A JP S5548616A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- air flow
- hot
- sensor
- signal process
- 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
Landscapes
- Measuring Volume Flow (AREA)
Abstract
PURPOSE: To avoid lowering of the operation velocity with a simple constitution by supplying the output given from the air flow meter to the signal process circuit after smoothing.
CONSTITUTION: Output signal 23 given from the hot-wire type air flow sensor is transmitted to signal process circuit 7 via smoothing circuit 10. The signals are led into circuit 7 from clock generation circuit 9, distributor sensor 11 and crank angle sensor 14 each, and the output waveform of the hot-wire sensor is changed into nearly the linear form via circuit 10. Thus in case circuit 9 is used, the signal processing becomes possible by generating the clock signals with the time duration of a fixed interval and also taking in the smoothed signals. Furthermore, the pulsation waveform of the hot wire is led to circuit directly, and the peak and bottom value of the waveform are detected by peak detector 15. And based on these two value, the mean air flow velocity can be calculated. In this way, the lowering of the operation velocity can be avoided easily.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12284378A JPS5548616A (en) | 1978-10-04 | 1978-10-04 | Signal process system for hot-wire type air flow meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12284378A JPS5548616A (en) | 1978-10-04 | 1978-10-04 | Signal process system for hot-wire type air flow meter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5548616A true JPS5548616A (en) | 1980-04-07 |
Family
ID=14846001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12284378A Pending JPS5548616A (en) | 1978-10-04 | 1978-10-04 | Signal process system for hot-wire type air flow meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5548616A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5731638U (en) * | 1980-07-30 | 1982-02-19 | ||
JPS63112303A (en) * | 1986-10-28 | 1988-05-17 | Rihito Sangyo Kk | File accommodating device |
-
1978
- 1978-10-04 JP JP12284378A patent/JPS5548616A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5731638U (en) * | 1980-07-30 | 1982-02-19 | ||
JPS63112303A (en) * | 1986-10-28 | 1988-05-17 | Rihito Sangyo Kk | File accommodating device |
JPH0339922B2 (en) * | 1986-10-28 | 1991-06-17 |
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