JPS5676057A - Peak detection system - Google Patents
Peak detection systemInfo
- Publication number
- JPS5676057A JPS5676057A JP15295579A JP15295579A JPS5676057A JP S5676057 A JPS5676057 A JP S5676057A JP 15295579 A JP15295579 A JP 15295579A JP 15295579 A JP15295579 A JP 15295579A JP S5676057 A JPS5676057 A JP S5676057A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- differentiated
- order
- point
- intersection
- 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 Current Or Voltage (AREA)
Abstract
PURPOSE: To eliminate an erronous detection of an inflection point other than a correct peak point by a method wherein a zero point of intersection of a differentiated signal of 1st order during a period of time when an amplitude of a differentiated signal of 2nd order of an analog signal exceeds the griven value for a given period of time or more is detected as a peak point.
CONSTITUTION: An input analog signal 1 enters a differentiator 2 and the signal is 1st order differentiated thereat, the differentiated output enters a comparator 7 and a zero point of intersection is detected. And together with this it enters a differentiator 3 and the signal is 2nd order differentiated thereat. The 2nd under differential signal is sliced on a given level through a unit 4 and thereafter, it is made into a pulse having a constant time width and supplied to a logical circuit 9. And when the 2nd order differential signal continues to retain an amplitude exceeding a slice level for given period of time or more, the circuit 9 detects a zero point of intersection detection signal delayed through a delay circuit 8 as a peak point of the input analog signal.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15295579A JPH0235947B2 (en) | 1979-11-28 | 1979-11-28 | PIIKUKENSHUTSUSOCHI |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15295579A JPH0235947B2 (en) | 1979-11-28 | 1979-11-28 | PIIKUKENSHUTSUSOCHI |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5676057A true JPS5676057A (en) | 1981-06-23 |
JPH0235947B2 JPH0235947B2 (en) | 1990-08-14 |
Family
ID=15551807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15295579A Expired - Lifetime JPH0235947B2 (en) | 1979-11-28 | 1979-11-28 | PIIKUKENSHUTSUSOCHI |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0235947B2 (en) |
-
1979
- 1979-11-28 JP JP15295579A patent/JPH0235947B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0235947B2 (en) | 1990-08-14 |
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