JPS6232377U - - Google Patents
Info
- Publication number
- JPS6232377U JPS6232377U JP12354385U JP12354385U JPS6232377U JP S6232377 U JPS6232377 U JP S6232377U JP 12354385 U JP12354385 U JP 12354385U JP 12354385 U JP12354385 U JP 12354385U JP S6232377 U JPS6232377 U JP S6232377U
- Authority
- JP
- Japan
- Prior art keywords
- voltage signal
- circuit
- frequency
- voltage
- electromagnetic sensor
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 2
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図はこの考案の交差コイル式計器の一実施
例を示す電気回路図、第２図は従来の交差コイル
式計器の電気回路図、第３図は第１図及び第２図
における波形整形回路、Ｆ―Ｖ変換回路、駆動回
路の動作波形図である。
図において、１は電磁センサ、２は波形整形回
路、３はＦ―Ｖ変換回路、６は駆動回路、１２は
電源回路、１３はイグニツシヨンスイツチ、１４
は車載バツテリ、１５は交差コイル式計器ユニツ
ト、２３はスイツチング手段、２７は駆動信号発
生手段、３４は交流電圧信号発生手段。尚、図中
、同一符号は同一、又は相当部分を示す。
Figure 1 is an electric circuit diagram showing an embodiment of the crossed coil type meter of this invention, Figure 2 is an electric circuit diagram of a conventional crossed coil type meter, and Figure 3 is the waveform shaping in Figures 1 and 2. FIG. 3 is an operation waveform diagram of the circuit, the FV conversion circuit, and the drive circuit. In the figure, 1 is an electromagnetic sensor, 2 is a waveform shaping circuit, 3 is an F-V conversion circuit, 6 is a drive circuit, 12 is a power supply circuit, 13 is an ignition switch, 14
15 is a cross-coil type instrument unit, 23 is a switching means, 27 is a drive signal generating means, and 34 is an AC voltage signal generating means. In the drawings, the same reference numerals indicate the same or equivalent parts.
Claims (1)
のコイル１６，１７の磁気作用下に２極着磁され
た可動マグネツト１８を回転可能に配設してなる
交差コイル式計器ユニツト１５と、被測定量に比
例した周波数の交流電圧信号ｆｉを出力する電磁
センサ１と、該電磁センサ１からの交流電圧信号
ｆｉを入力し、該交流電圧信号ｆｉの周波数に応
じた直流電圧信号ａを出力する周波数―電圧変換
回路３と、該周波数―電圧変換回路３からの直流
電圧信号ａを入力し、互いに所定の位相差を有し
かつ前記直流電圧信号ａの電圧値に応じて三角波
、台形波又はサイン波等の特性で変化する２種類
の駆動信号ｆ，ｇを前記計器ユニツト１５の一対
のコイル１６，１７に夫々供給する駆動回路６と
、車載バツテリ１４からの電力を受けて前記駆動
回路６等に作動電力を供給する電源回路１２とを
備え、かつ該電源回路１２は、イグニツシヨンス
イツチ１３の閉成時又は前記電磁センサ１の交流
電圧信号出力時に導通するスイツチング手段２４
を介して、前記車載バツテリ１４に接続されてな
ることを特徴とする交差コイル式計器。 A cross-coil type instrument unit 15 includes a movable magnet 18 rotatably arranged with two poles under the magnetic action of a pair of coils 16 and 17 arranged at a predetermined angle to each other; An electromagnetic sensor 1 that outputs an AC voltage signal fi with a frequency proportional to the amount, and an AC voltage signal fi from the electromagnetic sensor 1 are input, and a DC voltage signal a corresponding to the frequency of the AC voltage signal fi is generated. The output frequency-voltage conversion circuit 3 and the DC voltage signal a from the frequency-voltage conversion circuit 3 are inputted, and have a predetermined phase difference from each other and generate a triangular wave or a trapezoidal wave according to the voltage value of the DC voltage signal a. A drive circuit 6 supplies two types of drive signals f and g that vary depending on characteristics such as waves or sine waves to a pair of coils 16 and 17 of the instrument unit 15, and receives power from an on-vehicle battery 14 to drive the vehicle. and a power supply circuit 12 that supplies operating power to the circuit 6 and the like, and the power supply circuit 12 includes a switching means 24 that is rendered conductive when the ignition switch 13 is closed or when the electromagnetic sensor 1 outputs an AC voltage signal.
A cross-coil type meter, characterized in that it is connected to the vehicle battery 14 via.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12354385U JPS6232377U (en) | 1985-08-13 | 1985-08-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12354385U JPS6232377U (en) | 1985-08-13 | 1985-08-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6232377U true JPS6232377U (en) | 1987-02-26 |
Family
ID=31014741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12354385U Pending JPS6232377U (en) | 1985-08-13 | 1985-08-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6232377U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5892956A (en) * | 1981-11-30 | 1983-06-02 | Mitsubishi Motors Corp | Speed display device |
-
1985
- 1985-08-13 JP JP12354385U patent/JPS6232377U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5892956A (en) * | 1981-11-30 | 1983-06-02 | Mitsubishi Motors Corp | Speed display device |
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