JPS53125079A - Earthquake detector - Google Patents

Earthquake detector

Info

Publication number
JPS53125079A
JPS53125079A JP4000477A JP4000477A JPS53125079A JP S53125079 A JPS53125079 A JP S53125079A JP 4000477 A JP4000477 A JP 4000477A JP 4000477 A JP4000477 A JP 4000477A JP S53125079 A JPS53125079 A JP S53125079A
Authority
JP
Japan
Prior art keywords
earthquake detector
spherical seat
spherical
coefficient
extent
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
JP4000477A
Other languages
Japanese (ja)
Inventor
Kazue Nishihara
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP4000477A priority Critical patent/JPS53125079A/en
Publication of JPS53125079A publication Critical patent/JPS53125079A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: To achieve the improvement in sensing characteristics by forming a spherical seat in conical form and increasing the coefficient of static friction at the contact face between the spherical seat and the spherical body to be placed thereon to the extent of not causing slipping.
COPYRIGHT: (C)1978,JPO&Japio
JP4000477A 1977-04-08 1977-04-08 Earthquake detector Pending JPS53125079A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4000477A JPS53125079A (en) 1977-04-08 1977-04-08 Earthquake detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4000477A JPS53125079A (en) 1977-04-08 1977-04-08 Earthquake detector

Publications (1)

Publication Number Publication Date
JPS53125079A true JPS53125079A (en) 1978-11-01

Family

ID=12568757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4000477A Pending JPS53125079A (en) 1977-04-08 1977-04-08 Earthquake detector

Country Status (1)

Country Link
JP (1) JPS53125079A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07174614A (en) * 1993-12-20 1995-07-14 Chubu Seiki Kk Earthquake detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07174614A (en) * 1993-12-20 1995-07-14 Chubu Seiki Kk Earthquake detector

Similar Documents

Publication Publication Date Title
JPS539739A (en) #-trifluoromethyl-##-isoproxybenzoic acid anilide, its preparation and its use
JPS51129032A (en) Seat belt winding device
JPS53125079A (en) Earthquake detector
JPS5271732A (en) Valve device
JPS5362057A (en) Fastening device
JPS5441190A (en) Measuring electrode
JPS52106787A (en) Gas and humidity detection element
JPS5233220A (en) Seat belt winding device
JPS5242387A (en) Pressure transducer
JPS52125977A (en) Gear apparatus
JPS51122222A (en) Movement restricting protection device
JPS52155749A (en) Elevator
JPS5347799A (en) Fire sensing device
JPS5376394A (en) Manufacturing of high-density ferrite
JPS5372677A (en) Indentation hardness tester
JPS52140377A (en) Pressure fluctuation detector
JPS52141066A (en) Roller
CA1012076B (en) Elevating device for wheel chairs and the like
USD238861S (en)
JPS5292249A (en) Autohesion tape
JPS5316589A (en) Semiconductor pressure transducer
JPS53138024A (en) Position indicator
JPS52143615A (en) Reclining seat
JPS5431844A (en) Conbined supporting surface member for stern tube bearing easy to check abrasion
JPS5380595A (en) 4-conductor spacer