JPH0233092B2 - - Google Patents
Info
- Publication number
- JPH0233092B2 JPH0233092B2 JP55180828A JP18082880A JPH0233092B2 JP H0233092 B2 JPH0233092 B2 JP H0233092B2 JP 55180828 A JP55180828 A JP 55180828A JP 18082880 A JP18082880 A JP 18082880A JP H0233092 B2 JPH0233092 B2 JP H0233092B2
- Authority
- JP
- Japan
- Prior art keywords
- grain
- sample
- temperature correction
- grains
- moisture
- 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.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/045—Circuits
- G01N27/046—Circuits provided with temperature compensation
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は主として米麦等の含有水分値を測定す
る穀物用電気抵抗式水分測定器に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention mainly relates to an electric resistance moisture meter for grains, which measures the moisture content of rice, wheat, etc.
従来、米麦等の含有水分値を測定するに際し、
それらの電気抵抗を測定することにより、その電
気抵抗値と含有水分値との相関関係から含有水分
値を求めることが行われれている。しかも、同一
含有水分値であつても穀温により電気抵抗が異な
る（10℃の温度変化に対して水分値が約1.0％高
くズレる）ので、いわゆる穀温補正を行つてい
る。つまり、この種の穀物用電気抵抗式水分測定
機器は、収穫後の米麦等を熱風乾燥機で乾燥する
過程で用いられるのが通常の使用形態であり、そ
のため、サンプリングした高温状態の穀粒を常温
に戻してから測定するのが原則であるが、煩しい
とともに放冷時間に20分以上を要するので最新の
測定値たり得ない（乾燥機内では乾燥が進んでい
る）ことから、高温状態のまま穀粒を検出部に収
容し、電気抵抗値と穀粒の温度を測定して電気抵
抗値の穀温補正を行つているのである。
Conventionally, when measuring the moisture content of rice, wheat, etc.
By measuring their electrical resistance, the water content value is determined from the correlation between the electrical resistance value and the water content value. Moreover, even if the moisture content is the same, the electrical resistance differs depending on the grain temperature (the moisture value shifts approximately 1.0% higher for a temperature change of 10°C), so so-called grain temperature correction is performed. In other words, this type of electrical resistance moisture measuring device for grains is normally used in the process of drying rice, wheat, etc. after harvest using a hot air dryer, and therefore the sampled grains are As a general rule, measurements should be taken after returning the product to room temperature, but this is cumbersome and requires more than 20 minutes to cool down, so it cannot be the latest measured value (drying is progressing in the dryer), so The grain is placed in the detection unit as is, and the electrical resistance value and temperature of the grain are measured to correct the grain temperature of the electrical resistance value.
しかしながら、従来の穀物用電気抵抗式水分測
定器にあつては、通常、検出部には粒数にして10
乃至20粒程度しか収容されないので小容量の穀粒
によつてしか温度が測定されず、正確な穀温を得
ることができないものであり、そのため、含有水
分値の測定誤差が避けられず、過乾燥米等の被害
を惹き起こしていた。
However, in conventional electrical resistance moisture meters for grains, the detection unit usually has a grain count of 10 grains.
Since only about 20 grains are stored, the temperature can only be measured using a small volume of grains, making it impossible to obtain accurate grain temperatures.As a result, measurement errors in moisture content values are unavoidable, and excessive This caused damage to dry rice, etc.
本発明はこの点にかんがみ、正確な穀温補正を
行うことにより、測定誤差のない穀物用電気抵抗
式水分測定器を提供することを技術的課題とす
る。 In view of this point, it is a technical object of the present invention to provide an electrical resistance type moisture meter for grains without measurement errors by performing accurate grain temperature correction.
前記問題点を解決するため本発明の穀物用電気
抵抗式水分測定器においては、試料穀粒を計測室
に挿入する試料皿と、この試料皿の穀粒を圧砕す
る測定用回転ハンドルと、穀温補正用センサーと
を備え、前記試料皿と測定用回転ハンドルと、穀
温補正用センサーとを備え、前記試料皿と測定用
回転ハンドルとの間の穀粒の電気抵抗により当該
穀粒の含有水分値を計測するとともに、前記穀温
補正用センサーの検出値によつて前記含有水分値
を補正するよう形成してなる穀物用電気抵抗式水
分測定器において、
イ 少なくとも前記試料皿よりも容量の大きい穀
粒収納部を前記計測室とは別に設ける。
In order to solve the above-mentioned problems, the electric resistance moisture meter for grains of the present invention has a sample tray for inserting the sample grains into the measurement chamber, a measurement rotary handle for crushing the grains in the sample tray, and a grain a sensor for temperature correction, the sample plate, a rotating handle for measurement, and a sensor for correcting grain temperature; In an electric resistance type moisture meter for grains configured to measure a moisture value and to correct the content moisture value based on the detected value of the grain temperature correction sensor, a A large grain storage section is provided separately from the measurement chamber.
ロ この穀粒収納部に前記穀温補正用センサーを
装着する。(b) The grain temperature correction sensor is attached to this grain storage section.
という技術的手段を講じた。This technical measure was taken.
試料皿に少量の試料を装てんして計測室にて電
気抵抗を測定するとともに、この抵抗値から当該
試料の含有水分値を計測するのであるが、この
際、前記試料皿よりも容量の大きい穀物収納部に
投入した前記試料と同一試料の穀温を正確に測定
し、この穀温測定値により前記含有水分値を補正
するように働く。
A small amount of sample is loaded into a sample dish and the electrical resistance is measured in the measurement chamber, and the moisture content of the sample is measured from this resistance value. It works to accurately measure the grain temperature of the same sample as the sample put into the storage section, and to correct the water content value based on this grain temperature measurement value.
このように、本発明は比較的多量の試料の穀温
を測定することによつて正確な穀温を検出するこ
とができ、この正確な穀温により含有水分値を補
正するので当該試料の正確な含有水分値を得るこ
とができる。 As described above, the present invention can detect accurate grain temperature by measuring the grain temperature of a relatively large amount of sample, and corrects the moisture content value based on this accurate grain temperature. It is possible to obtain the moisture content value.
以下、本発明の好適な一実施例について、図面
を参照しながら説明する。第１図において、符号
１は穀物用電気抵抗式水分測定器の全体を示し、
本体ケース２の一側面に試料皿４の挿入口５を設
け、挿入口５内には計測室３を形成し、この計測
室３に向けて本体ケース２上面から測定用回転ハ
ンドル６を螺入する。また、本体ケース２内には
水分測定用の電気回路（図示せず）を設け、本体
ケース２上面に含有水分値を表示する表示器７を
設ける。
Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 indicates the entire electric resistance moisture meter for grains,
An insertion opening 5 for the sample dish 4 is provided on one side of the main body case 2, a measurement chamber 3 is formed in the insertion opening 5, and a measuring rotary handle 6 is screwed into the measurement chamber 3 from the top surface of the main body case 2. do. Further, an electric circuit (not shown) for measuring moisture is provided inside the main body case 2, and a display 7 for displaying the content moisture value is provided on the upper surface of the main body case 2.
更に、前記本体ケース２とは別体に箱形容器８
を設け、この箱形容量８底面にサーミスターから
なる穀温補正用センサー９を装着するとともに、
この穀温補正用センサー９と本体ケース２内に設
けた穀温補正回路（図示せず）とを導線１１によ
つて電気的に連結し、この穀温補正回路は前記水
分測定用電気回路にも接続される。 Furthermore, a box-shaped container 8 is provided separately from the main body case 2.
A grain temperature correction sensor 9 consisting of a thermistor is attached to the bottom of this box-shaped capacity 8, and
This grain temperature correction sensor 9 and a grain temperature correction circuit (not shown) provided in the main body case 2 are electrically connected by a conductor 11, and this grain temperature correction circuit is connected to the moisture measurement electric circuit. is also connected.
次に、上記構成における具体的作動について説
明する。図外の穀物乾燥機等からサンプリングし
た試料籾の内、整粒を抽出して10乃至20粒を試料
皿４の所定凹部に装てんし、挿入口５から計測室
３内に挿入する。一方、別体の穀粒収納部１０内
に残りの試料を投入し（少なくとも20粒程度）、
測定用回転ハンドル６を螺入して試料皿４内の試
料籾を圧砕する。これにより、試料皿４内の試料
籾の電気抵抗を測定するとともに、この抵抗値か
ら含有水分値が計測されるのであるが、穀粒収納
部１０内に投入した十分な籾の穀温が穀温補正用
センサー９によつて正確に検出され、この検出値
が穀温補正回路を経て水分測定用電気回路に取り
込まれて含有水分値が補正される。そして、この
補正された含有水分値は表示器７に表示され、穀
物乾燥機の熱風温度や乾燥時間の調整が行われ
る。なお、穀温補正を要しないときは導線１１を
本体ケース２から抜き取るとよい。 Next, specific operations in the above configuration will be explained. Among the sample paddy sampled from a grain dryer (not shown), 10 to 20 grains are extracted and loaded into a predetermined recess of the sample dish 4, and inserted into the measurement chamber 3 through the insertion port 5. On the other hand, put the remaining sample into the separate grain storage unit 10 (at least about 20 grains),
The measuring rotary handle 6 is screwed in to crush the sample rice in the sample dish 4. As a result, the electrical resistance of the sample paddy in the sample dish 4 is measured, and the moisture content is measured from this resistance value. It is accurately detected by the temperature correction sensor 9, and this detected value is taken into the moisture measurement electric circuit via the grain temperature correction circuit to correct the content moisture value. Then, this corrected moisture content value is displayed on the display 7, and the hot air temperature and drying time of the grain dryer are adjusted. Incidentally, when grain temperature correction is not required, it is preferable to remove the conducting wire 11 from the main body case 2.
第２図は穀粒収納部１０Ａを本体ケース２Ａに
一体に形成したものである。すなわち、本体ケー
ス２Ａの上壁面に試料穀物の投入口１２を開口し
て穀粒収納部１０Ａとなし、その底部に穀温補正
用センサー９Ａを装着してある。また、本体ケー
ス２Ａ上壁面に切換スイツチ１３を設け、穀温補
正用センサー９Ａの電気回路の開閉を任意に行う
ようにし、穀温が常温の場合等には穀温補正用セ
ンサー９Ａの補正作用を停止することができる。 FIG. 2 shows a grain storage section 10A formed integrally with a main body case 2A. That is, a sample grain inlet 12 is opened in the upper wall surface of the main body case 2A to form a grain storage part 10A, and a grain temperature correction sensor 9A is installed at the bottom of the grain storage part 10A. In addition, a changeover switch 13 is provided on the upper wall surface of the main body case 2A to arbitrarily open and close the electric circuit of the grain temperature correction sensor 9A, so that when the grain temperature is at room temperature, the grain temperature correction sensor 9A performs a correction operation. can be stopped.
第１図は本発明の一実施例の斜視図、第２図は
別の実施例の斜視図である。
１，１Ａ…穀物用電気抵抗式水分測定器、２，
２Ａ…本体ケース、３…計測室、４…試料皿、５
…挿入口、６…測定用回転ハンドル、７…表示
器、８…箱形容器、９，９Ａ…穀温補正用センサ
ー、１０，１０Ａ…穀粒収納部、１１…導線、１
２…投入口、１３…切換スイツチ。
FIG. 1 is a perspective view of one embodiment of the invention, and FIG. 2 is a perspective view of another embodiment. 1, 1A...Electric resistance moisture meter for grains, 2,
2A...Main body case, 3...Measurement chamber, 4...Sample plate, 5
...Insertion port, 6...Rotary handle for measurement, 7...Display device, 8...Box-shaped container, 9, 9A...Sensor for grain temperature correction, 10, 10A...Grain storage section, 11...Conductor, 1
2...Inlet, 13...Selector switch.
Claims (1)
試料皿の穀粒を圧砕する測定用回転ハンドルと、
穀温補正用センサーとを備え、前記試料皿と測定
用回転ハンドルとの間の穀粒の電気抵抗により当
該穀粒の含有水分値を計測するとともに、前記穀
温補正用センサーの検出値によつて前記含有水分
値を補正するように形成してなる穀物用電気抵抗
式水分測定器において、少なくとも前記試料皿よ
りも容量の大きい穀粒収納部を前記計測室とは別
に設け、この穀粒収納部に前記穀温補正用センサ
ーを装着したことを特徴とする穀物用電気抵抗式
水分測定器。1. A sample plate for inserting the sample grain into the measurement chamber, a measuring rotary handle for crushing the grain in the sample plate,
The grain temperature correction sensor measures the moisture content of the grain based on the electrical resistance of the grain between the sample plate and the measurement rotary handle, and also measures the moisture content of the grain based on the detected value of the grain temperature correction sensor. In the electric resistance type moisture meter for grains formed to correct the moisture content value, a grain storage section having a capacity larger than at least the sample tray is provided separately from the measurement chamber, and the grain storage section is provided separately from the measurement chamber. An electric resistance moisture meter for grains, characterized in that the grain temperature correction sensor is attached to the grain temperature correction sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18082880A JPS57103039A (en) | 1980-12-19 | 1980-12-19 | Electric resistance type measuring instrument of moisture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18082880A JPS57103039A (en) | 1980-12-19 | 1980-12-19 | Electric resistance type measuring instrument of moisture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57103039A JPS57103039A (en) | 1982-06-26 |
| JPH0233092B2 true JPH0233092B2 (en) | 1990-07-25 |
Family
ID=16090063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18082880A Granted JPS57103039A (en) | 1980-12-19 | 1980-12-19 | Electric resistance type measuring instrument of moisture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57103039A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462672A (en) * | 2017-07-17 | 2017-12-12 | 许昌县东和畜牧养殖专业合作社 | It is a kind of to transmit and data storage divides water instrument |
| CN108535327A (en) * | 2018-02-28 | 2018-09-14 | 安徽大洋自动化科技有限公司 | A kind of scoop holder of the online Moisture Meter of resistance-type |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3487302A (en) * | 1966-03-14 | 1969-12-30 | Thurman F Griffeth | Moisture content tester including a probe having a material sampling chamber |
-
1980
- 1980-12-19 JP JP18082880A patent/JPS57103039A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57103039A (en) | 1982-06-26 |
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