JPS5596403A - Distance detector - Google Patents
Distance detectorInfo
- Publication number
- JPS5596403A JPS5596403A JP494079A JP494079A JPS5596403A JP S5596403 A JPS5596403 A JP S5596403A JP 494079 A JP494079 A JP 494079A JP 494079 A JP494079 A JP 494079A JP S5596403 A JPS5596403 A JP S5596403A
- Authority
- JP
- Japan
- Prior art keywords
- time difference
- sensor
- wave signal
- detection section
- wave
- 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
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
PURPOSE: To easily determine the distance between a position where an AE sensor is disposed and a position where an AE wave is generated, by detecting the time difference between two peaks of an AE wave signal received by AE sensor, etc.
CONSTITUTION: An AE wave signal is received by an AE sensor 1 and supplied to a time difference detection section 2. The time difference detection section 2 consists of a detector 4, a peak detector 5, a time difference detector 6, etc., and adapted to subject the AE wave signal, which has been input into the time difference detection section 2, to envelope detection to determine the time difference Δt between two peaks thereof. An output from the time difference detection section 2 is supplied to a signal processing circuit 7 so as to calculate the distance L between a position where the AE sensor 1 is disposed and a position where the AE wave signal is generated, in accordance with a formula I, L=Δt/(1/V2-1/V1), wherein V1 and V2 represent the speed of a longitudinal component and a transversal component, respectively, of the AE wave. An output signal from the signal processing circuit 7 is supplied to an indicator 8 to display the results of the above calculation therein. Thus, the distance between the position where the AE sensor is disposed and the position where the AE wave signal is generated can be easily detected.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP494079A JPS5596403A (en) | 1979-01-19 | 1979-01-19 | Distance detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP494079A JPS5596403A (en) | 1979-01-19 | 1979-01-19 | Distance detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5596403A true JPS5596403A (en) | 1980-07-22 |
Family
ID=11597564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP494079A Pending JPS5596403A (en) | 1979-01-19 | 1979-01-19 | Distance detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5596403A (en) |
-
1979
- 1979-01-19 JP JP494079A patent/JPS5596403A/en active Pending
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