JPS55147320A - Vibration analyzer - Google Patents

Vibration analyzer

Info

Publication number
JPS55147320A
JPS55147320A JP5546879A JP5546879A JPS55147320A JP S55147320 A JPS55147320 A JP S55147320A JP 5546879 A JP5546879 A JP 5546879A JP 5546879 A JP5546879 A JP 5546879A JP S55147320 A JPS55147320 A JP S55147320A
Authority
JP
Japan
Prior art keywords
circuit
differentiated
logarithmic
output
differentiation
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
JP5546879A
Other languages
Japanese (ja)
Inventor
Yohachiro Watabe
Toru Saito
Nobuhiro Fujimoto
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 Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP5546879A priority Critical patent/JPS55147320A/en
Publication of JPS55147320A publication Critical patent/JPS55147320A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: To simply determine a logarithmic decrement in a short time, by performing calculation and processing on a damped vibration signal through a differentiation circuit, a multiplication circuit, an absolute value calculation circuit, a logarithmic calclation circuit, etc.
CONSTITUTION: An input wave form is differentiated by the first differentiation circuit 1. The differentiated value is multiplied by a constant in a multiplication circuit 2. The output of the circuit 2 and an input signal are applied to an absolute value calculation circuit 3. The output of the circuit 3 is removed of its ripple by a low-pass filter 3a and then entered into a logarithmic calculation circuit 4. The output of the circuit 4 is differentiated by the second differentiation circuit 5 so that the differentiated value is indicated on a recording display unit. This results in determining the relation between requried amplitude and logarithmic decrement.
COPYRIGHT: (C)1980,JPO&Japio
JP5546879A 1979-05-07 1979-05-07 Vibration analyzer Pending JPS55147320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5546879A JPS55147320A (en) 1979-05-07 1979-05-07 Vibration analyzer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5546879A JPS55147320A (en) 1979-05-07 1979-05-07 Vibration analyzer

Publications (1)

Publication Number Publication Date
JPS55147320A true JPS55147320A (en) 1980-11-17

Family

ID=12999427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5546879A Pending JPS55147320A (en) 1979-05-07 1979-05-07 Vibration analyzer

Country Status (1)

Country Link
JP (1) JPS55147320A (en)

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