JPH01162734U - - Google Patents
Info
- Publication number
- JPH01162734U JPH01162734U JP5717888U JP5717888U JPH01162734U JP H01162734 U JPH01162734 U JP H01162734U JP 5717888 U JP5717888 U JP 5717888U JP 5717888 U JP5717888 U JP 5717888U JP H01162734 U JPH01162734 U JP H01162734U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- reference clock
- clock signal
- period
- gate means
- 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
- 210000003813 thumb Anatomy 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Measuring Frequencies, Analyzing Spectra (AREA)
- Manipulation Of Pulses (AREA)
Description
第１図は、この考案の一実施例を示す周波数継
電器装置の回路図、第２図は、同周波数継電器装
置の動作を説明するための信号波形図である。
１：波形整形回路、５：分周回路、６：ゲート
回路、７：基準クロツク源、８：カウンタ、１０
ａ，１０ｂ，１０ｃ：サムロータリスイツチ、１
１：ＰＲＯＭ。
FIG. 1 is a circuit diagram of a frequency relay device showing an embodiment of this invention, and FIG. 2 is a signal waveform diagram for explaining the operation of the same frequency relay device. 1: Waveform shaping circuit, 5: Frequency dividing circuit, 6: Gate circuit, 7: Reference clock source, 8: Counter, 10
a, 10b, 10c: Thumb rotary switch, 1
1: PROM.
Claims (1)
期に対応する期間開かれ、この期間前記基準クロ
ツク信号を出力するゲート手段と、周波数整定器
と、この周波数整定器の整定に対応する設定値と
前記ゲート手段より出力される基準クロツク信号
とを比較する手段を備え、比較結果に応じ、整定
周波数に対する入力信号の過周波数状態あるいは
不足周波数状態を出力する周波数継電器装置にお
いて、 予め、入力信号の周波数と前記ゲート手段の出
力基準クロツク信号数の対応を記憶した記憶手段
を備え、前記周波数整定器をサムロータリスイツ
チで構成し、このサムロータリスイツチで前記記
憶手段のアドレスを指定し、読出されるデータを
前記比較手段への設定値としたことを特徴とする
周波数継電器装置。[Claims for Utility Model Registration] A reference clock signal generator, a gate means that is open for a period corresponding to a predetermined period of an input signal and outputs the reference clock signal during this period, a frequency setter, and a gate means for outputting the reference clock signal during this period, a frequency setter, A frequency relay device comprising means for comparing a set value corresponding to setting with a reference clock signal outputted from the gate means, and outputting an over-frequency state or an under-frequency state of an input signal with respect to the set frequency according to the comparison result. , further comprising a storage means storing in advance the correspondence between the frequency of the input signal and the number of output reference clock signals of the gate means, the frequency setter being constituted by a thumb rotary switch, and the address of the storage means being set by the thumb rotary switch. A frequency relay device characterized in that data specified and read out is used as a setting value for the comparison means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5717888U JPH01162734U (en) | 1988-04-27 | 1988-04-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5717888U JPH01162734U (en) | 1988-04-27 | 1988-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01162734U true JPH01162734U (en) | 1989-11-13 |
Family
ID=31283033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5717888U Pending JPH01162734U (en) | 1988-04-27 | 1988-04-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01162734U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5759429A (en) * | 1980-09-27 | 1982-04-09 | Tokyo Shibaura Electric Co | Frequency relaying device |
-
1988
- 1988-04-27 JP JP5717888U patent/JPH01162734U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5759429A (en) * | 1980-09-27 | 1982-04-09 | Tokyo Shibaura Electric Co | Frequency relaying device |
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