JPS63135123U - - Google Patents
Info
- Publication number
- JPS63135123U JPS63135123U JP2619587U JP2619587U JPS63135123U JP S63135123 U JPS63135123 U JP S63135123U JP 2619587 U JP2619587 U JP 2619587U JP 2619587 U JP2619587 U JP 2619587U JP S63135123 U JPS63135123 U JP S63135123U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- liquid level
- winding density
- coils
- signal source
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 2
- 230000004907 flux Effects 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Description
第１図は本考案によりなる液面センサの実施例
を示した説明図、第２図はそのセンサによるシヨ
ートリング高さと出力電圧との関係を示した特性
図、第３図は従来のセンサを示した説明図、第４
図はその動作回路図、第５図はその特性図である
。
１２２１ａ，１２２２ａ……多重巻コイル、１
２４ａ，１２４ｂ……補足コイル。
Fig. 1 is an explanatory diagram showing an embodiment of the liquid level sensor according to the present invention, Fig. 2 is a characteristic diagram showing the relationship between shot ring height and output voltage of the sensor, and Fig. 3 shows a conventional sensor. Explanatory diagram, 4th
The figure is its operating circuit diagram, and FIG. 5 is its characteristic diagram. 1221a, 1222a...Multi-turn coil, 1
24a, 124b...Supplementary coils.
Claims (1)
つて巻回密度が漸次密から疎になるように形成さ
れた上部コイル１２２１と、前記中間点から下方
に向つて巻回密度が漸次疎から密になりかつ前記
上部コイル１２２１とは逆方向の磁束を発生する
ように形成された下部コイル１２２２との直列体
又は並列体からなる第１のコイル１２２と、該第
１のコイル１２２に磁気結合され、かつ液面位の
変化方向に沿つて中央部の巻数より上下両端部の
巻回密度が密になるように形成された第２のコイ
ル１２４と、前記第１及び第２のコイル１２２，
１２４が巻回された樹脂性コア１２０と、前記第
１又は第２のコイル１２２，１２４のコイル軸に
対して同軸的に配設されかつ液面位に応じて上下
動するシヨートリング１２６，１２６′とからな
る誘導型液面センサ１２を備え、前記第１又は第
２のコイル１２２，１２４のいずれか一方に交流
信号源１１を接続することにより該第１又は第２
のコイル１２２，１２４のいずれか他方から誘導
起電力を得、該誘導起電力を前記交流信号源１１
の半サイクル毎に検波することにより得られる波
形の実効値を検出出力としてなることを特徴とす
る液面検出装置。 The upper coil 1221 is formed so that the winding density gradually becomes sparse from above toward the middle point along the direction of change in the liquid level, and the winding density gradually becomes sparse from the middle point downward. A first coil 122 is formed in series or in parallel with a lower coil 1222 which is densely packed and is formed to generate magnetic flux in the opposite direction to that of the upper coil 1221. a second coil 124 that is coupled and formed so that the winding density at both upper and lower ends is denser than that at the center along the direction of change in liquid level; and the first and second coils 122. ，
124 wound around the resin core 120, and shot rings 126, 126' which are disposed coaxially with the coil axis of the first or second coil 122, 124 and move up and down according to the liquid level. By connecting the AC signal source 11 to either the first or second coil 122, 124, the first or second coil
An induced electromotive force is obtained from the other of the coils 122 and 124, and the induced electromotive force is applied to the AC signal source 11.
A liquid level detection device characterized in that the detection output is an effective value of a waveform obtained by detecting the waveform every half cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2619587U JPH043232Y2 (en) | 1987-02-24 | 1987-02-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2619587U JPH043232Y2 (en) | 1987-02-24 | 1987-02-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63135123U true JPS63135123U (en) | 1988-09-05 |
| JPH043232Y2 JPH043232Y2 (en) | 1992-02-03 |
Family
ID=30827050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2619587U Expired JPH043232Y2 (en) | 1987-02-24 | 1987-02-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH043232Y2 (en) |
-
1987
- 1987-02-24 JP JP2619587U patent/JPH043232Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH043232Y2 (en) | 1992-02-03 |
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