公开(公告)号：EP0106843A4

公开(公告)日：1984-07-04

申请号：EP82901691

申请日：1982-04-16

Applicant: WATSON HERMAN LANIER ,  STOTT FRANK DUDLEY

Inventor： WATSON HERMAN LANIER

IPC: A61B5/087 ,  A61B5/113 ,  G01R19/252 ,  G01R27/26 ,  H03B1/00 ,  H03B5/12 ,  A61B5/08

CPC classification number: G01R27/2611 ,  A61B5/087 ,  A61B5/1135 ,  G01R19/252 ,  H03B5/1212 ,  H03B5/1231 ,  H03B5/1256 ,  H03B5/1296 ,  H03B2200/0034 ,  H03B2200/0098 ,  H03B2201/012

Abstract: An improved inductive reactance to frequency converter circuit (10) for producing an output signal whose frequency is capable of variation in response to a variable input inductance or inductive reactance (30) comprises differential gain means (42) and an improved resonant circuit (20) whose resonance frequency determines the frequency of the output signal. The improved resonant circuit (20) comprises a capacitance element (60, 62) and a transformer (64) whose primary coil (70) is capable of being connected to the variable inductive input reactance (30) and whose secondary coil (68) is connected in parallel with the capacitive element (60, 62) for enabling relatively small changes in the variable input inductive reactance (30) to be measured as relatively large changes in the resonance frequency of the resonant circuit (20).

Abstract translation: 一种用于产生其频率能够响应于可变输入电感或感抗（30）而变化的输出信号的改进的用于变频器电路（10）的电感性电抗包括差分增益装置（42）和改进的谐振电路（20） 其共振频率决定了输出信号的频率。 改进的谐振电路（20）包括电容元件（60,62）和变压器（64），变压器（64）的初级线圈（70）能够连接到可变电感输入电抗（30），其次级线圈（68） 与所述电容元件（60,62）并联连接，以使所述可变输入感抗（30）中的相对小的变化能够被测量为所述谐振电路（20）的谐振频率的相对较大的变化。

公开(公告)号：EP0106843A1

公开(公告)日：1984-05-02

申请号：EP82901691.0

申请日：1982-04-16

Applicant: WATSON, Herman Lanier ,  STOTT, Frank Dudley

Inventor： WATSON, Herman Lanier ,  STOTT, Frank Dudley

IPC: A61B5 ,  G01R19 ,  G01R27 ,  H03B5 ,  H03B1

CPC classification number: G01R27/2611 ,  A61B5/087 ,  A61B5/1135 ,  G01R19/252 ,  H03B5/1212 ,  H03B5/1231 ,  H03B5/1256 ,  H03B5/1296 ,  H03B2200/0034 ,  H03B2200/0098 ,  H03B2201/012

Abstract: Un circuit convertisseur amélioré (10) de conversion de la réactance inductive en fréquence permet de produire un signal de sortie dont la fréquence varie en réponse à une inductance ou réactance inductive d'entrée variable (30). Ce circuit de conversion amélioré comprend un moyen de gain différentiel (42) et un circuit résonnant amélioré (20) dont la fréquence de résonnance détermine la fréquence du signal de sortie. Le circuit résonnant amélioré (20) comprend un élément de capacitance (60, 62) et un transformateur (64) dont l'enroulement primaire (70) peut être connecté à la réactance inductive d'entrée variable (30) et dont l'enroulement secondaire (68) est connecté en parallèle à l'élément capacitif (60, 62) pour permettre de mesurer des changements relativement petits dans la réactance inductive d'entrée variable (30) comme des changements relativement grands de la fréquence de résonnance du circuit résonnant (20).

公开(公告)号：WO1983003533A1

公开(公告)日：1983-10-27

申请号：PCT/US1982000500

申请日：1982-04-16

Applicant: WATSON, Herman, Lanier ,  STOTT, Frank, Dudley

IPC: A61B05/08

CPC classification number: G01R27/2611 ,  A61B5/087 ,  A61B5/1135 ,  G01R19/252 ,  H03B5/1212 ,  H03B5/1231 ,  H03B5/1256 ,  H03B5/1296 ,  H03B2200/0034 ,  H03B2200/0098 ,  H03B2201/012

Abstract: An improved inductive reactance to frequency converter circuit (10) for producing an output signal whose frequency is capable of variation in response to a variable input inductance or inductive reactance (30) comprises differential gain means (42) and an improved resonant circuit (20) whose resonance frequency determines the frequency of the output signal. The improved resonant circuit (20) comprises a capacitance element (60, 62) and a transformer (64) whose primary coil (70) is capable of being connected to the variable inductive input reactance (30) and whose secondary coil (68) is connected in parallel with the capacitive element (60, 62) for enabling relatively small changes in the variable input inductive reactance (30) to be measured as relatively large changes in the resonance frequency of the resonant circuit (20).

Abstract translation: 改进的对变频器电路（10）的感抗由用于产生频率响应于可变输入电感或电抗（30）而变化的输出信号包括差分增益装置（42）和改进的谐振电路（20） 其谐振频率决定了输出信号的频率。 改进的谐振电路（20）包括电容元件（60,62）和变压器（64），其初级线圈（70）能够连接到可变电感输入电抗（30），其次级线圈（68）是 与所述电容元件（60,62）并联连接，用于使所述可变输入电抗（30）的相对较小的变化被测量为所述谐振电路（20）的谐振频率的相对大的变化。