JPH02122357U - - Google Patents
Info
- Publication number
- JPH02122357U JPH02122357U JP3061189U JP3061189U JPH02122357U JP H02122357 U JPH02122357 U JP H02122357U JP 3061189 U JP3061189 U JP 3061189U JP 3061189 U JP3061189 U JP 3061189U JP H02122357 U JPH02122357 U JP H02122357U
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- frequency
- gear
- detection device
- speed detection
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 230000001960 triggered effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図は本考案の一実施例を示す構成図、第２
図は実施例のタイムチヤート、第３図は従来の構
成図である。
１……パルスギヤ、２Ａ，２Ｂ，２Ｃ……パル
スピツクアツプ、３Ａ，３Ｂ，３Ｃ……波形整形
回路、４……周波数−電圧変換器、５Ａ，５Ｂ，
５Ｃ……単安定マルチバイブレータ、６……論理
和回路。
Fig. 1 is a configuration diagram showing one embodiment of the present invention;
The figure is a time chart of the embodiment, and FIG. 3 is a conventional configuration diagram. 1... Pulse gear, 2A, 2B, 2C... Pulse pickup, 3A, 3B, 3C... Waveform shaping circuit, 4... Frequency-voltage converter, 5A, 5B,
5C...monostable multivibrator, 6...OR circuit.
Claims (1)
の突起又は溝をパルスピツクアツプでパルス信号
として検出し、このパルス信号の周波数を周波数
−電圧変換器で電圧信号に変換する回転数検出装
置において、前記パルスピツクアツプは前記パル
スギヤに対して複数個設けかつ互いに異なる位相
のパルス信号を得る位置にし、前記複数のパルス
ピツクアツプのパルス信号出力で夫々トリガされ
る複数の単安定マルチバイブレータを設け、各単
安定マルチバイブレータの出力の論理和を得る論
理和回路の出力を前記周波数−電圧変換器の入力
とすることを特徴とする回転数検出装置。 A rotational speed detection device in which a pulse gear is coupled to a rotating body, a protrusion or groove of the pulse gear is detected as a pulse signal by a pulse pickup, and the frequency of the pulse signal is converted into a voltage signal by a frequency-voltage converter. A plurality of monostable multivibrators are provided for the pulse gear and are positioned at positions to obtain pulse signals of mutually different phases, and a plurality of monostable multivibrators are each triggered by the pulse signal output of the plurality of pulse pickups. A rotation speed detection device characterized in that an output of an OR circuit that obtains a logical sum of outputs is input to the frequency-voltage converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3061189U JPH02122357U (en) | 1989-03-17 | 1989-03-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3061189U JPH02122357U (en) | 1989-03-17 | 1989-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02122357U true JPH02122357U (en) | 1990-10-05 |
Family
ID=31255822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3061189U Pending JPH02122357U (en) | 1989-03-17 | 1989-03-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02122357U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49114474A (en) * | 1973-02-28 | 1974-10-31 | ||
| JPS6354019B2 (en) * | 1983-02-24 | 1988-10-26 | Mitsubishi Kasei Vinyl |
-
1989
- 1989-03-17 JP JP3061189U patent/JPH02122357U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49114474A (en) * | 1973-02-28 | 1974-10-31 | ||
| JPS6354019B2 (en) * | 1983-02-24 | 1988-10-26 | Mitsubishi Kasei Vinyl |
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