JPH0450914U - - Google Patents

Info

Publication number
JPH0450914U
JPH0450914U JP9223290U JP9223290U JPH0450914U JP H0450914 U JPH0450914 U JP H0450914U JP 9223290 U JP9223290 U JP 9223290U JP 9223290 U JP9223290 U JP 9223290U JP H0450914 U JPH0450914 U JP H0450914U
Authority
JP
Japan
Prior art keywords
lock
amplifier
frequency
choppers
measurement system
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
JP9223290U
Other languages
English (en)
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 filed Critical
Priority to JP9223290U priority Critical patent/JPH0450914U/ja
Publication of JPH0450914U publication Critical patent/JPH0450914U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Amplifiers (AREA)

Description

【図面の簡単な説明】
第1図は本考案実施例の構成を示すブロツク図
である。第2図および第3図はそれぞれ本考案実
施例の作用を説明するための図で、各機器の出力
信号a〜iの波形を示す。 1,2,3……チヨツパ、11,12,13…
…ロツクインアンプ、20……コンピユータ、3
0……測定系、31……検出器、S……試料。

Claims (1)

    【実用新案登録請求の範囲】
  1. 測定系に入力する所定の信号をそれぞれ互いに
    異なる周波数のもとに周波数変調する複数のチヨ
    ツパと、上記測定系からの出力信号を、上記各チ
    ヨツパのチヨツピング周波数とそれぞれ等しい周
    波数でロツクイン増幅する複数のアンプと、この
    各ロツクインアンプからの信号を合成して平均化
    するための演算手段を備えてなるロツクイン増幅
    装置。
JP9223290U 1990-08-31 1990-08-31 Pending JPH0450914U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9223290U JPH0450914U (ja) 1990-08-31 1990-08-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9223290U JPH0450914U (ja) 1990-08-31 1990-08-31

Publications (1)

Publication Number Publication Date
JPH0450914U true JPH0450914U (ja) 1992-04-28

Family

ID=31828529

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9223290U Pending JPH0450914U (ja) 1990-08-31 1990-08-31

Country Status (1)

Country Link
JP (1) JPH0450914U (ja)

Similar Documents

Publication Publication Date Title
JPH026268U (ja)
JPH0450914U (ja)
JPH0230061U (ja)
JPH0240480U (ja)
JPH0352825U (ja)
JPS6220340U (ja)
JPS63111673U (ja)
JPS6289831U (ja)
JPS6266604U (ja)
JPH0752582Y2 (ja) 記録システム
JPH0341405U (ja)
SU617033A1 (ru) Эхоэнцефалограф
JPH0457749U (ja)
JPH02134744U (ja)
JPS6247983U (ja)
JPH0349667U (ja)
JPS6454414U (ja)
JPS6335189U (ja)
Damassa et al. A system for the detection and analysis of ultrasonic calls
JPH0226162U (ja)
JPS63178436U (ja)
JPS60149603U (ja) 心拍計
JPH0454065U (ja)
JPH0159347U (ja)
JPS6441733U (ja)