JPH026361U - - Google Patents
Info
- Publication number
- JPH026361U JPH026361U JP8358988U JP8358988U JPH026361U JP H026361 U JPH026361 U JP H026361U JP 8358988 U JP8358988 U JP 8358988U JP 8358988 U JP8358988 U JP 8358988U JP H026361 U JPH026361 U JP H026361U
- Authority
- JP
- Japan
- Prior art keywords
- moving object
- sensor
- code
- reading device
- code reading
- 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
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 claims 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims 1
- 230000004907 flux Effects 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 claims 1
Description
第１図は本考案の移動物体コード読取り装置の
平面図、第２図はその移動物体側の正面図、第３
図はそのセンサの正面図、第４図はそのセンサの
側面図、第５図はセンサの検出電圧波形を示すグ
ラフ、第６図は移動物体が遠近方向に変動した場
合の検出電圧波形を示すグラフ、第７図はホール
素子が１個の場合の検出電圧波形を示すグラフ、
第８図はホール素子が１個の場合であつて移動物
体が遠近方向に変動した場合の検出電圧波形を示
すグラフである。
１１…移動物体、１３…コード、１４…センサ
、１６ａ，１６ｂ…ホール素子、Ｍ１〜Ｍｎ…磁
石、Ｌ…磁石間距離、Ｄ…磁石・センサ間距離。
Fig. 1 is a plan view of the moving object code reading device of the present invention, Fig. 2 is a front view of the moving object side, and Fig. 3 is a plan view of the moving object code reading device of the present invention.
The figure is a front view of the sensor, Figure 4 is a side view of the sensor, Figure 5 is a graph showing the detected voltage waveform of the sensor, and Figure 6 is the detected voltage waveform when a moving object changes in the far and near direction. Graph, Figure 7 is a graph showing the detected voltage waveform when there is one Hall element,
FIG. 8 is a graph showing a detected voltage waveform when the number of Hall elements is one and the moving object changes in the distance direction. DESCRIPTION OF SYMBOLS 11... Moving object, 13... Cord, 14... Sensor, 16a, 16b... Hall element, M1 - Mn ... Magnet, L... Distance between magnets, D... Distance between magnet and sensor.
Claims (1)
ドを付し、このコードを無接触で検出するセンサ
を設けたコード読取り装置において、コードは、
離間して配列された複数個の磁石によつて形成さ
れ、センサは、磁束の通過方向によつて感度が異
なる特性を相互に補償して磁石の極性を読取る２
個のホール素子が近接した形で一方は表面で他方
は裏面で取付けられたことを特徴とする移動物体
コード読取り装置。 (2) センサは、ガリウムひ素系のホール素子を
用いたことを特徴とする請求項１記載の移動物体
コード読取り装置。[Claims for Utility Model Registration] (1) In a code reading device in which a code is attached to a moving object to identify the moving object and a sensor is provided to detect the code without contact, the code is
The sensor is formed by a plurality of magnets arranged apart from each other, and the sensor reads the polarity of the magnet by mutually compensating the characteristics that have different sensitivities depending on the direction in which the magnetic flux passes.
A moving object code reading device characterized in that two Hall elements are mounted in close proximity, one on the front surface and the other on the back surface. (2) The moving object code reading device according to claim 1, wherein the sensor uses a gallium arsenide Hall element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8358988U JPH026361U (en) | 1988-06-24 | 1988-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8358988U JPH026361U (en) | 1988-06-24 | 1988-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH026361U true JPH026361U (en) | 1990-01-17 |
Family
ID=31308302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8358988U Pending JPH026361U (en) | 1988-06-24 | 1988-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH026361U (en) |
-
1988
- 1988-06-24 JP JP8358988U patent/JPH026361U/ja active Pending
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