JPS6215481A - 地震波卓越周期検出装置 - Google Patents

地震波卓越周期検出装置

Info

Publication number
JPS6215481A
JPS6215481A JP60154130A JP15413085A JPS6215481A JP S6215481 A JPS6215481 A JP S6215481A JP 60154130 A JP60154130 A JP 60154130A JP 15413085 A JP15413085 A JP 15413085A JP S6215481 A JPS6215481 A JP S6215481A
Authority
JP
Japan
Prior art keywords
period
predominant period
outputs
sensor
value
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
Application number
JP60154130A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0236911B2 (enExample
Inventor
Yutaka Nakamura
豊 中村
Kenji Tomita
健司 富田
Tamio Hashimoto
橋本　民雄
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.)
JAPANESE NATIONAL RAILWAYS<JNR>
Japan National Railways
Oki Electric Industry Co Ltd
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Japan National Railways
Oki Electric Industry Co Ltd
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 JAPANESE NATIONAL RAILWAYS<JNR>, Japan National Railways, Oki Electric Industry Co Ltd filed Critical JAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP60154130A priority Critical patent/JPS6215481A/ja
Publication of JPS6215481A publication Critical patent/JPS6215481A/ja
Publication of JPH0236911B2 publication Critical patent/JPH0236911B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/01—Measuring or predicting earthquakes

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
JP60154130A 1985-07-15 1985-07-15 地震波卓越周期検出装置 Granted JPS6215481A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60154130A JPS6215481A (ja) 1985-07-15 1985-07-15 地震波卓越周期検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60154130A JPS6215481A (ja) 1985-07-15 1985-07-15 地震波卓越周期検出装置

Publications (2)

Publication Number Publication Date
JPS6215481A true JPS6215481A (ja) 1987-01-23
JPH0236911B2 JPH0236911B2 (enExample) 1990-08-21

Family

ID=15577554

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60154130A Granted JPS6215481A (ja) 1985-07-15 1985-07-15 地震波卓越周期検出装置

Country Status (1)

Country Link
JP (1) JPS6215481A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04373098A (ja) * 1991-06-21 1992-12-25 Fujitsu General Ltd 金銭登録機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04373098A (ja) * 1991-06-21 1992-12-25 Fujitsu General Ltd 金銭登録機

Also Published As

Publication number Publication date
JPH0236911B2 (enExample) 1990-08-21

Similar Documents

Publication Publication Date Title
CA2035773C (en) Method and system for digital measurement of acoustic burst travel time in a fluid medium
CN102301216B (zh) 漏孔检测器
JP2958362B2 (ja) 地盤構造の計測解析判定方法
Vorländer et al. Practical aspects of MLS measurements in building acoustics
JP2637439B2 (ja) 流体分布検出装置
Bouzid et al. Investigation of sampling frequency requirements for acoustic source localisation using wireless sensor networks
FI87493B (fi) Foerfarande och anordning foer maetning av stroemningshastigheten av gaser och/eller storheter som kan haerledas fraon denna.
US5818735A (en) Method and system for high resolution time-of-flight measurements
CN103528634A (zh) 一种科里奥利质量流量计云传输数字信号处理装置及方法
JPS62169073A (ja) 超音波ドップラー診断装置
CN108037410A (zh) 一种基于可控响应功率的局部放电超声波定位方法与装置
Paulose et al. Acoustic source localization
CN104062645B (zh) 一种测量参量阵差频波与同频小振幅波信号相位差的方法
EP0338592B1 (en) An ultrasonic doppler blood flow velocity detection apparatus and a method for detecting blood flow velocity
JPS6215481A (ja) 地震波卓越周期検出装置
EP0355994B1 (en) Cross-correlation apparatus and methods
JPH0263194B2 (enExample)
Zhang et al. Time-difference reassigned transform with application to time difference of arrival for impulsive signal
JPS6241644A (ja) 超音波パルスドツプラ血流計
JPH07209068A (ja) 音源探査装置
JPS586156B2 (ja) 距離計測装置
Yu et al. Measurement of acoustic attenuation coefficient of stored grain
JPH09243745A (ja) ドップラー速度計
JPH0236910B2 (enExample)
Kobayashi et al. Concept and Formulation for Continuous Measurement of Acoustic Transfer Functions