JPS5575673A - Receiver for buried object detector - Google Patents

Receiver for buried object detector

Info

Publication number
JPS5575673A
JPS5575673A JP15045978A JP15045978A JPS5575673A JP S5575673 A JPS5575673 A JP S5575673A JP 15045978 A JP15045978 A JP 15045978A JP 15045978 A JP15045978 A JP 15045978A JP S5575673 A JPS5575673 A JP S5575673A
Authority
JP
Japan
Prior art keywords
circuit
attenuator
voltage
numerically
comparison
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
Application number
JP15045978A
Other languages
Japanese (ja)
Inventor
Kazutoshi Nakao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP15045978A priority Critical patent/JPS5575673A/en
Publication of JPS5575673A publication Critical patent/JPS5575673A/en
Pending legal-status Critical Current

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  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE: To read in and record the stable result of measurement numerically, by the numerical control of the attenuator with the output signal of the comparison circuit monitoring the reception output from the attenuator.
CONSTITUTION: The signal voltage v obtained with the magnetic field caught with the antenna 1 enters the comparison circuit 4 with the voltage v1 via the attenuator 2, it is compared with the voltage v0 of the reference voltage generation circuit 5, and the circuit 4 outputs the voltage v2 when v0<v1. In this case, the numerical control circuit 7 having the scanning program of itself controls numerically the attenuator 2 according to the program and perform setting so that v1 is the lowest under the condition of v0<v1. The attenuator 2 operates to obtain this set value and it is displayed numerically to the display circuit 6 with the numeral converted. Further, those numerals are delivered to the operation circuit 3, memory circuit 8 and recording circuit 9 to use them for the monitor and removal of abnormal value, comparison and collation with standard value, and discrimination of propriety.
COPYRIGHT: (C)1980,JPO&Japio
JP15045978A 1978-12-04 1978-12-04 Receiver for buried object detector Pending JPS5575673A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15045978A JPS5575673A (en) 1978-12-04 1978-12-04 Receiver for buried object detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15045978A JPS5575673A (en) 1978-12-04 1978-12-04 Receiver for buried object detector

Publications (1)

Publication Number Publication Date
JPS5575673A true JPS5575673A (en) 1980-06-07

Family

ID=15497381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15045978A Pending JPS5575673A (en) 1978-12-04 1978-12-04 Receiver for buried object detector

Country Status (1)

Country Link
JP (1) JPS5575673A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4992553A (en) * 1972-11-15 1974-09-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4992553A (en) * 1972-11-15 1974-09-04

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