JPH0374350U - - Google Patents
Info
- Publication number
- JPH0374350U JPH0374350U JP8823990U JP8823990U JPH0374350U JP H0374350 U JPH0374350 U JP H0374350U JP 8823990 U JP8823990 U JP 8823990U JP 8823990 U JP8823990 U JP 8823990U JP H0374350 U JPH0374350 U JP H0374350U
- Authority
- JP
- Japan
- Prior art keywords
- light
- soil
- optical fiber
- absorbing member
- moisture absorbing
- 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
- 239000013307 optical fiber Substances 0.000 claims description 8
- 239000002689 soil Substances 0.000 claims 4
- 238000010521 absorption reaction Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
第１図は本考案の第１実施例におけるセンサ機
構部を示す断面図、第２図は第１実施例の全体的
構成を示すブロツク図、第３図は第１図および第
２図の実施例における測定結果を示す線図、第４
図は第２実施例におけるセンサ機構部を示す断面
図、第５図は第３実施例におけるセンサ機構部を
示す断面図、第６図は第４実施例におけるセンサ
機構の変形例を示す断面図である。
１，１，３２……光フアイバ、１Ａ，１Ａ……
光フアイバの他端部、２，２２，３１，４１……
吸湿部材としての多孔質部材、７……光源、８Ａ
……補正用受光手段としての一方の受光素子、９
……補正回路、１１……表示部。
FIG. 1 is a cross-sectional view showing the sensor mechanism in the first embodiment of the present invention, FIG. 2 is a block diagram showing the overall configuration of the first embodiment, and FIG. 3 is an implementation of FIGS. 1 and 2. Diagram showing the measurement results in the example, 4th
The figure is a sectional view showing the sensor mechanism in the second embodiment, FIG. 5 is a sectional view showing the sensor mechanism in the third embodiment, and FIG. 6 is a sectional view showing a modification of the sensor mechanism in the fourth embodiment. It is. 1, 1, 32...Optical fiber, 1A, 1A...
The other end of the optical fiber, 2, 22, 31, 41...
Porous member as a moisture absorbing member, 7... Light source, 8A
...One light-receiving element as correction light-receiving means, 9
... Correction circuit, 11 ... Display section.
Claims (1)
射箇所とほぼ同一の箇所で反射光を捕捉する一又
は二以上の光フアイバを設け、 この光フアイバの一端部に吸湿部材を装備する
とともに、この吸湿部材の外端面を、被測定物た
る土壌等に向けて少なくとも半球状に膨出せしめ
たことを特徴とする土壌等の含水被測定用センサ
装置。 (2) 一端部から光を放射するとともに当該光放
射箇所とほぼ同一の箇所で反射光を捕捉する一又
は二以上の光フアイバを設け、 この光フアイバの一端部に吸湿部材を装備する
とともに、この吸湿部材の外端面を、被測定物た
る土壌等に向けて少なくとも半球状に膨出せしめ
、 前記光フアイバの他端部に装備される光源の近
傍に、当該光源の光強度の変動を検出し電気信号
に変換する補正用受光手段を設けるとともに、こ
の受光手段から出力される光量の変化の割合に基
づいて前記光フアイバの一端部で捕捉される反射
光の強度を電気信号に変換した後補正する補正回
路を設けたことを特徴とする土壌等の含水被測定
用センサ装置。[Claims for Utility Model Registration] (1) One or more optical fibers are provided that emit light from one end and capture reflected light at substantially the same location as the light emission location, and one end of this optical fiber is provided. 1. A sensor device for measuring a moisture-containing object such as soil, characterized in that the moisture absorbing member is equipped with a moisture absorbing member, and the outer end surface of the moisture absorbing member is bulged in at least a hemispherical shape toward the object to be measured, such as soil. (2) Providing one or more optical fibers that emit light from one end and capture reflected light at approximately the same location as the light emission location, and equipping one end of this optical fiber with a moisture absorption member, The outer end surface of the moisture absorbing member is bulged out in at least a hemispherical shape toward the object to be measured, such as soil, and the variation in the light intensity of the light source is detected in the vicinity of the light source installed at the other end of the optical fiber. and after converting the intensity of the reflected light captured at one end of the optical fiber into an electrical signal based on the rate of change in the amount of light output from the light receiving means. A sensor device for measuring a water-containing object such as soil, characterized in that it is provided with a correction circuit for correction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8823990U JPH0374350U (en) | 1990-08-23 | 1990-08-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8823990U JPH0374350U (en) | 1990-08-23 | 1990-08-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0374350U true JPH0374350U (en) | 1991-07-25 |
Family
ID=31637863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8823990U Pending JPH0374350U (en) | 1990-08-23 | 1990-08-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0374350U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51132887A (en) * | 1975-05-13 | 1976-11-18 | Keiki Wada | Device for measuring moisture |
| JPS55156838A (en) * | 1979-05-21 | 1980-12-06 | Kureha Chem Ind Co Ltd | Existence detecting method for oil or oil soluble liquid |
-
1990
- 1990-08-23 JP JP8823990U patent/JPH0374350U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51132887A (en) * | 1975-05-13 | 1976-11-18 | Keiki Wada | Device for measuring moisture |
| JPS55156838A (en) * | 1979-05-21 | 1980-12-06 | Kureha Chem Ind Co Ltd | Existence detecting method for oil or oil soluble liquid |
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