JPS5640778A - Magnetism failure detector - Google Patents
Magnetism failure detectorInfo
- Publication number
- JPS5640778A JPS5640778A JP11640879A JP11640879A JPS5640778A JP S5640778 A JPS5640778 A JP S5640778A JP 11640879 A JP11640879 A JP 11640879A JP 11640879 A JP11640879 A JP 11640879A JP S5640778 A JPS5640778 A JP S5640778A
- Authority
- JP
- Japan
- Prior art keywords
- magnetism
- signal
- failure detector
- output
- altitude
- 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
Abstract
PURPOSE: To enable to keep the detection accuracy higher at all times, by digital processing of the output from the magnetism failure detector.
CONSTITUTION: The magnetism measuring signal XA measured at the magnetism failure detector an the altitude signal UA obtained from the aircraft are converted into digital signals X, U at the A/D converters 2, 3, every time when the pulse P1 is produced and written in the memory units M1, M2...ML. The switches S1, S2...SL are switched with the control signal W and the memorized value is input to the adder 7. The output Y normalizing the magnetism measuring signal XA with the altitude UA is ibtained from the divider 8. The correlation signal indicating the characteristics such as sunken ship is picked up from the output and the correlation signal is compared with the threshold value to detect the presence of detected object.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54116408A JPS6026474B2 (en) | 1979-09-11 | 1979-09-11 | magnetic anomaly detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54116408A JPS6026474B2 (en) | 1979-09-11 | 1979-09-11 | magnetic anomaly detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5640778A true JPS5640778A (en) | 1981-04-17 |
JPS6026474B2 JPS6026474B2 (en) | 1985-06-24 |
Family
ID=14686311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54116408A Expired JPS6026474B2 (en) | 1979-09-11 | 1979-09-11 | magnetic anomaly detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6026474B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021076528A (en) * | 2019-11-12 | 2021-05-20 | 独立行政法人石油天然ガス・金属鉱物資源機構 | Signal processing device, survey system, signal processing method, and program |
-
1979
- 1979-09-11 JP JP54116408A patent/JPS6026474B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021076528A (en) * | 2019-11-12 | 2021-05-20 | 独立行政法人石油天然ガス・金属鉱物資源機構 | Signal processing device, survey system, signal processing method, and program |
Also Published As
Publication number | Publication date |
---|---|
JPS6026474B2 (en) | 1985-06-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1536126A (en) | Scintillation camera for high activity sources | |
JPS56122931A (en) | Method and device for checking tire | |
US4044352A (en) | Signal processor | |
JPS5640778A (en) | Magnetism failure detector | |
JPS566169A (en) | Method and device for magnetic-field vector detection | |
US3392386A (en) | Multilevel digital skimmer | |
JPS5654359A (en) | Abnormality detecting method in vehicle speed measurement | |
JPS5540954A (en) | Load cell failure detection method and its unit | |
JPS5456719A (en) | Detection system for code signal featuring specified pattern | |
JPS55143454A (en) | Level detector | |
JPS54138483A (en) | Leakage detector | |
JPS5562308A (en) | Direction indicating device | |
JPS5711528A (en) | Failure detecting circuit for pulse train | |
JPS5710475A (en) | Moving target detector | |
JPS55114031A (en) | Detector for pulse absence | |
SE8502433L (en) | signal processor | |
JPS5449166A (en) | Disc flatness measuring device | |
JPS5495141A (en) | Fault detector | |
JPS56150304A (en) | Coordinate measuring device | |
JPS53133470A (en) | Convergence value detecting system | |
JPS5564678A (en) | Address mark detection circuit | |
JPS5771080A (en) | Medium detector | |
JPS56104265A (en) | Radar signal processor | |
JPS55131781A (en) | Frequency detector | |
JPS5254395A (en) | Ssr detector |