JPS5648522A - Seismic sensor - Google Patents

Seismic sensor

Info

Publication number
JPS5648522A
JPS5648522A JP12586279A JP12586279A JPS5648522A JP S5648522 A JPS5648522 A JP S5648522A JP 12586279 A JP12586279 A JP 12586279A JP 12586279 A JP12586279 A JP 12586279A JP S5648522 A JPS5648522 A JP S5648522A
Authority
JP
Japan
Prior art keywords
circuit
output
seismic sensor
working
voltage generating
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
JP12586279A
Other languages
Japanese (ja)
Inventor
Kunio Yamada
Kazuo Tokui
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP12586279A priority Critical patent/JPS5648522A/en
Publication of JPS5648522A publication Critical patent/JPS5648522A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: To confirm the working of the process circuit without applying the mechanical vibration to the seismic sensor, by switching the seismic sensor to the voltage generating circuit by a change-over circuit and then actuating the process circuit by the output voltage of the voltage generating circuit.
CONSTITUTION: The output according to the earthquake is applied to the filter circuit 4 via the change-over switch 2 and then compared with the reference voltage through the comparator 6 after shaping of the waveform. And the output relay 7 is energized by the output of the comparator 6. When the confirmation is desired in the normal state for the working of the process circuit, the switch 2 is turned to the terminal (b). The voltage generating circuit 8 is connected to the process circuit 3 with the relay 7 energized. In such way, the working can be confirmed for the circuit 3.
COPYRIGHT: (C)1981,JPO&Japio
JP12586279A 1979-09-28 1979-09-28 Seismic sensor Pending JPS5648522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12586279A JPS5648522A (en) 1979-09-28 1979-09-28 Seismic sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12586279A JPS5648522A (en) 1979-09-28 1979-09-28 Seismic sensor

Publications (1)

Publication Number Publication Date
JPS5648522A true JPS5648522A (en) 1981-05-01

Family

ID=14920772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12586279A Pending JPS5648522A (en) 1979-09-28 1979-09-28 Seismic sensor

Country Status (1)

Country Link
JP (1) JPS5648522A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108088545A (en) * 2016-11-23 2018-05-29 航天科工惯性技术有限公司 A kind of multichannel geosound of debris flow process circuit and method
TWI680213B (en) * 2015-04-30 2019-12-21 美商北面服飾公司 Baffle constructs for insulative fill materials and methods of making the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5483875A (en) * 1977-12-17 1979-07-04 Akashi Seisakusho Kk System of detecting troubles of vibrometer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5483875A (en) * 1977-12-17 1979-07-04 Akashi Seisakusho Kk System of detecting troubles of vibrometer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI680213B (en) * 2015-04-30 2019-12-21 美商北面服飾公司 Baffle constructs for insulative fill materials and methods of making the same
TWI728349B (en) * 2015-04-30 2021-05-21 美商北面服飾公司 Baffle constructs for insulative fill materials and methods of making the same
US11457682B2 (en) 2015-04-30 2022-10-04 The North Face Apparel Corp. Baffle constructs for insulative fill materials
CN108088545A (en) * 2016-11-23 2018-05-29 航天科工惯性技术有限公司 A kind of multichannel geosound of debris flow process circuit and method
CN108088545B (en) * 2016-11-23 2019-10-18 航天科工惯性技术有限公司 A kind of multichannel geosound of debris flow processing circuit and method

Similar Documents

Publication Publication Date Title
JPS51132986A (en) Electromechanical converter
JPS5648522A (en) Seismic sensor
IL89142A0 (en) Method for the sequential oxidation of substituted-8-hydroxyquinolines to produce substituted-pyridine-2,3-dicarboxylic acids
JPS5210514A (en) Transformation device
JPS5672523A (en) Shaping method of signal waveform
JPS53102662A (en) Driving circuit for pulse transformer
JPS543673A (en) Sequence control system
JPS5299735A (en) Initial program counter setting system
JPS5648523A (en) Seismic sensor
JPS5440540A (en) Isolator
JPS52146826A (en) Controller for pole number switching motor
JPS522154A (en) Waveform shaping circuit
JPS51121123A (en) Switching regulator
JPS5415146A (en) Electric shock protector
JPS5396435A (en) High-voltage pulse generator
JPS5274881A (en) Water-proof terminal
JPS5271969A (en) Analog signal output unit
JPS5315051A (en) Chattering absorbing circuit of contacts
JPS5234309A (en) Armature current controller for motor
JPS5260922A (en) D.c. motor control circuit
JPS51127428A (en) High voltage generator
JPS5364118A (en) Control of fuel quality improvement devices embarked in cars
JPS5369939A (en) High frequency heater
JPS5250771A (en) Frequency-to-dc voltage conversion method
JPS538844A (en) High frequency heater