JPH01124550U - - Google Patents
Info
- Publication number
- JPH01124550U JPH01124550U JP1855288U JP1855288U JPH01124550U JP H01124550 U JPH01124550 U JP H01124550U JP 1855288 U JP1855288 U JP 1855288U JP 1855288 U JP1855288 U JP 1855288U JP H01124550 U JPH01124550 U JP H01124550U
- Authority
- JP
- Japan
- Prior art keywords
- light
- fan
- pattern
- optical sensors
- receiving surface
- 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
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000002050 diffraction method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Description
第１図は本考案実施例の正面図、第２図はその
―断面図、第３図はその点Ｏ近傍の光センサ
Ｓ１，Ｓ２……の受光面の拡大図、第４図はその
作用説明図である。第５図はレーザ光回折法に基
づく粒度分布測定の原理説明図、第６図は従来の
リングデイテクタの説明図、第７図および第８図
はその作用説明図である。
１０……基板、１１，１１……ピン、１２……
遮蔽板、Ｓ１，Ｓ２……Ｓｎ……光センサ、Ｈ…
…センタホール、Ｆ……扇形パターン、Ｅ……延
長パターン、Ｏ……扇形パターンの中心点、ｌ…
…中心線。
Fig. 1 is a front view of the embodiment of the present invention, Fig. 2 is a sectional view thereof, Fig. 3 is an enlarged view of the light-receiving surfaces of optical sensors S 1 , S 2 ... near the point O, and Fig. 4 is a It is an explanatory diagram of its action. FIG. 5 is an explanatory diagram of the principle of particle size distribution measurement based on a laser beam diffraction method, FIG. 6 is an explanatory diagram of a conventional ring detector, and FIGS. 7 and 8 are explanatory diagrams of its operation. 10... Board, 11, 11... Pin, 12...
Shielding plate, S 1 , S 2 ...S n ... Optical sensor, H...
...Center hole, F...Fan pattern, E...Extension pattern, O...Center point of sector pattern, l...
...center line.
Claims (1)
面を備えた複数個の光センサを、その各受光面が
一平面上の一点を中心として同心状に扇形となる
よう配列してなる光デイテクタにおいて、上記扇
形のパターンの外方に、上記一点を通り当該扇形
のパターンを二分する線を挟んでその両側へ、そ
れぞれ異なる複数個づつの光センサの受光面が延
長されているとともに、その延長されている部分
のパターンを覆う着脱自在の遮蔽板を備えている
ことを特徴とするリングデイテクタ。 In the above-described optical detector, a plurality of optical sensors each having a half-ring-shaped light-receiving surface having a different radius are arranged so that each light-receiving surface is concentrically arranged in a fan shape centered on a point on a plane. The light-receiving surfaces of a plurality of different optical sensors are extended outward from the fan-shaped pattern to both sides of the line passing through the above point and bisecting the fan-shaped pattern, and A ring detector characterized by being equipped with a removable shielding plate that covers the pattern of the part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1855288U JPH0623921Y2 (en) | 1988-02-15 | 1988-02-15 | Ring detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1855288U JPH0623921Y2 (en) | 1988-02-15 | 1988-02-15 | Ring detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01124550U true JPH01124550U (en) | 1989-08-24 |
| JPH0623921Y2 JPH0623921Y2 (en) | 1994-06-22 |
Family
ID=31233302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1855288U Expired - Lifetime JPH0623921Y2 (en) | 1988-02-15 | 1988-02-15 | Ring detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0623921Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06117825A (en) * | 1992-07-20 | 1994-04-28 | Natl Aerospace Lab | Apparatus of measuring diameter or width of thin wire |
| JP2002310884A (en) * | 2001-04-06 | 2002-10-23 | Horiba Ltd | Scattering type particle diameter distribution measuring device |
-
1988
- 1988-02-15 JP JP1855288U patent/JPH0623921Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06117825A (en) * | 1992-07-20 | 1994-04-28 | Natl Aerospace Lab | Apparatus of measuring diameter or width of thin wire |
| JP2002310884A (en) * | 2001-04-06 | 2002-10-23 | Horiba Ltd | Scattering type particle diameter distribution measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0623921Y2 (en) | 1994-06-22 |