JPS6444449U - - Google Patents
Info
- Publication number
- JPS6444449U JPS6444449U JP14026787U JP14026787U JPS6444449U JP S6444449 U JPS6444449 U JP S6444449U JP 14026787 U JP14026787 U JP 14026787U JP 14026787 U JP14026787 U JP 14026787U JP S6444449 U JPS6444449 U JP S6444449U
- Authority
- JP
- Japan
- Prior art keywords
- light
- sheet
- receiving element
- receiving
- amount
- 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
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
第１図は本考案実施例装置におけるシヤツター
を示し、図ａは平面図、図ｂは側面図、第２図は
従来装置の構成図である。
１…投光部、２…受光部、３…紙、４…光源、
１３…受光素子、１４…演算器、１５…シヤツタ
ー、１５ａ…回転板、１５ｂ…ロータリソレノイ
ド、１５ｃ…孔、Ａ…光路。
FIG. 1 shows a shutter in an apparatus according to an embodiment of the present invention, FIG. 1A is a plan view, FIG. 2B is a side view, and FIG. 1...Light emitter, 2...Light receiver, 3...Paper, 4...Light source,
13... Light receiving element, 14... Arithmetic unit, 15... Shutter, 15a... Rotating plate, 15b... Rotary solenoid, 15c... Hole, A... Optical path.
Claims (1)
配置し、前記投光部より前記シート状物体に赤外
線を照射し、前記シート状物体の水分によつて吸
収を受けた測定光と吸収を受けない比較光とを前
記受光部の受光素子で検出し、検出信号に基づき
前記シート状物体の水分量を測定すると共に、前
記受光素子への光路に介入し得るシヤツターを設
け、前記投光部と前記受光部との間に前記シート
状物体がないとき前記シヤツターを前記光路に介
入させ前記受光素子が大光量の光にさらされない
ようにした装置において、前記シヤツターを、前
記シート状物体と同程度の光透過特性を有する板
によつて構成し、前記受光素子に前記シート状物
体が存在しないときに加えられる光量と測定時に
おいて加えられる光量との差を小さくしたことを
特徴とする赤外線水分計。 A light emitting part and a light receiving part are arranged opposite to each other with a sheet-like object in between, and the light emitting part irradiates the sheet-like object with infrared rays, and the measurement light absorbed by the moisture in the sheet-like object and the absorption are generated. A light-receiving element of the light-receiving section detects the comparison light that is not received by the light-receiving element, and measures the moisture content of the sheet-like object based on the detection signal. A shutter that can intervene in the optical path to the light-receiving element is provided, In the device, the shutter is inserted into the optical path to prevent the light receiving element from being exposed to a large amount of light when the sheet-like object is not present between the sheet-like object and the light-receiving section. The infrared rays are constructed of plates having similar light transmission characteristics, and the difference between the amount of light applied when the sheet-like object is not present on the light-receiving element and the amount of light applied during measurement is reduced. Moisture meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14026787U JPS6444449U (en) | 1987-09-14 | 1987-09-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14026787U JPS6444449U (en) | 1987-09-14 | 1987-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6444449U true JPS6444449U (en) | 1989-03-16 |
Family
ID=31404281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14026787U Pending JPS6444449U (en) | 1987-09-14 | 1987-09-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6444449U (en) |
-
1987
- 1987-09-14 JP JP14026787U patent/JPS6444449U/ja active Pending
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