JPS61102967U - - Google Patents
Info
- Publication number
- JPS61102967U JPS61102967U JP18764584U JP18764584U JPS61102967U JP S61102967 U JPS61102967 U JP S61102967U JP 18764584 U JP18764584 U JP 18764584U JP 18764584 U JP18764584 U JP 18764584U JP S61102967 U JPS61102967 U JP S61102967U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- amplitude
- shaping circuit
- output
- amplifier
- 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
Links
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 230000004069 differentiation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Measuring Frequencies, Analyzing Spectra (AREA)
Description
第１図は本考案に係る周波数計の一実施例を示
す接続図、第２図は従来の周波数計の接続図、第
３図は第１図および第２図の回路の動作を説明す
る為の図である。
Ｒｇ……振幅整形回路、Ｃ１……微分用コンデ
ンサ、Ｃ２……平滑用コンデンサ、Ｃ３……バイ
アス用コンデンサ、Ｍ……計器素子、Ｕ……増幅
器。
Figure 1 is a connection diagram showing an embodiment of the frequency meter according to the present invention, Figure 2 is a connection diagram of a conventional frequency meter, and Figure 3 is for explaining the operation of the circuits in Figures 1 and 2. This is a diagram. Rg...amplitude shaping circuit, C1...differential capacitor, C2...smoothing capacitor, C3...bias capacitor, M...instrument element, U...amplifier.
Claims (1)
のツエナーダイオードよりなる振幅整形回路で振
幅整形したのち微分回路で微分し、その微分信号
と前記振幅整形回路の出力をコンデンサに充電す
ることによつて得られるバイアス信号との差を可
動コイル形計器素子で指示させることにより被測
定信号の周波数を計測するようにした周波数計に
おいて、前記差の信号を増幅する増幅器を設け、
その増幅出力を前記計器素子に加えるとともに、
前記増幅器の正、負の電源を前記振幅整形回路の
出力を利用して得るように構成したことを特徴と
する周波数計。 The signal to be measured is amplitude-shaped by an amplitude-shaping circuit consisting of a pair of Zener diodes connected with the same polarity, and then differentiated by a differentiation circuit, and the differential signal and the output of the amplitude-shaping circuit are charged into a capacitor. In a frequency meter that measures the frequency of a signal to be measured by indicating the difference between the bias signal and the bias signal obtained by using a moving coil type instrument element, an amplifier is provided to amplify the signal of the difference,
applying its amplified output to the metering element;
A frequency meter characterized in that the positive and negative power supplies for the amplifier are obtained using the output of the amplitude shaping circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18764584U JPS61102967U (en) | 1984-12-11 | 1984-12-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18764584U JPS61102967U (en) | 1984-12-11 | 1984-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61102967U true JPS61102967U (en) | 1986-07-01 |
Family
ID=30745107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18764584U Pending JPS61102967U (en) | 1984-12-11 | 1984-12-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61102967U (en) |
-
1984
- 1984-12-11 JP JP18764584U patent/JPS61102967U/ja active Pending
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