JPH0712957U - Heating / drying type moisture meter - Google Patents
Heating / drying type moisture meterInfo
- Publication number
- JPH0712957U JPH0712957U JP4079993U JP4079993U JPH0712957U JP H0712957 U JPH0712957 U JP H0712957U JP 4079993 U JP4079993 U JP 4079993U JP 4079993 U JP4079993 U JP 4079993U JP H0712957 U JPH0712957 U JP H0712957U
- Authority
- JP
- Japan
- Prior art keywords
- sample
- dish
- moisture meter
- drying
- heat
- 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
- 238000001035 drying Methods 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 title abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000004904 shortening Methods 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000011888 foil Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000011086 glassine Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 235000021186 dishes Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
(57)【要約】
【目的】 試料皿内の試料を上方から主ヒータで乾燥す
るようにした加熱乾燥型水分計において、試料皿の表面
を黒色仕上げとして試料の乾燥を促進させ含水量の測定
に要する時間を短縮する。
【構成】 試料皿１１内の試料を上方から赤外線ランプ
で加熱乾燥するようにした加熱乾燥型水分計において、
試料皿１１の内面を黒色仕上げするようになし、加熱乾
燥を促進して、含水量の測定を要する時間を短縮する。
(57) [Summary] [Purpose] In a heat-drying type moisture meter in which the sample in the sample dish is dried from above by the main heater, the surface of the sample dish is blackened to accelerate the drying of the sample and measure the water content. Reduce the time required for. [Structure] In a heating and drying type moisture meter in which a sample in a sample dish 11 is heated and dried by an infrared lamp from above,
The inner surface of the sample dish 11 is black-finished to accelerate heating and drying, thereby shortening the time required to measure the water content.
Description
【０００１】[0001]
本考案は、上方から試料を加熱して試料の重量変化を測定し、当該重量変化か ら試料の水分を求めるようになった加熱乾燥型水分計用に関する。 The present invention relates to a heat-drying type moisture meter for measuring a change in weight of a sample by heating the sample from above and obtaining the water content of the sample from the change in weight.
【０００２】[0002]
加熱乾燥型水分計は、試料皿に容れた試料を上方から赤外線ランプの熱で蒸発 乾燥させ、試料の重量を荷重計で測定し、以下計算式から含有水分（％）を求め るようになっている。 The heat-drying type moisture meter evaporates and dries the sample contained in the sample dish from above with the heat of an infrared lamp, measures the weight of the sample with a load meter, and obtains the moisture content (%) from the following formula. ing.
【０００３】[0003]
【数１】 Ｗ0 −Ｗt Ｍ＝──── Ｗ0 ここでＭ：試料の水分値 Ｗ0 ：初期総重量（試料および試料皿重量の和） Ｗt ：加熱乾燥後の総重量## EQU1 ## W 0 −W t M = ──── W 0 where M: water content of sample W 0 : initial total weight (sum of sample and sample dish weight) W t : total weight after heating and drying
【０００４】[0004]
試料としては、米や麦などの穀物の他に、接着剤、飲料水、インク、チーズな ど、さらには透明な飲料水、水薬などがある。これらの試料は、透明なため試料 自体で上方からの赤外線ランプからの熱を吸収しにくい。よってこのような加熱 乾燥は、主に試料皿が吸収した熱の輻射により行われる。しかしながら、従来か ら用いられている試料皿は、ステンレス材料をプレス加工して得られただけのも の、アルミプレス加工品を銀色アルマイト加工したもの等が用いられており、そ の表面が反射性を有するために試料皿に熱を効率的に吸収させ難かった。 本考案の目的は、上記問題を解決すべく、すなわち試料の乾燥時間を短縮しう る新規な構成の加熱乾燥型水分計を提供することを目的とする。 Samples include grains such as rice and wheat, adhesives, drinking water, ink, cheese, and clear drinking water and drenches. Since these samples are transparent, it is difficult for the samples themselves to absorb heat from the infrared lamp from above. Therefore, such heating and drying is mainly performed by radiation of heat absorbed by the sample dish. However, the sample pans that have been used in the past are not only obtained by pressing a stainless steel material, but also an aluminum press-processed product that is silver-anodized, and the surface of the sample dish is reflective. It was difficult to make the sample pan efficiently absorb heat because of its nature. An object of the present invention is to solve the above-mentioned problems, that is, to provide a heat-drying type moisture meter having a novel structure that shortens the drying time of a sample.
【０００５】[0005]
本考案によれば、試料を上方から加熱乾燥して試料の重量変化を測定し、この 重量変化から試料の含有水分を得るようになった加熱乾燥型水分計において、試 料皿の少なくとも内表面を黒色仕上げしたことを特徴とする加熱乾燥型水分計が 提供される。 According to the present invention, the sample is heated and dried from above to measure the weight change of the sample, and the moisture content of the sample is obtained from this weight change. There is provided a heat-drying type moisture meter characterized by having a black finish.
【０００６】[0006]
試料皿の表面を黒色としたため、試料皿の表面で熱が反射されず、しかして試 料皿に熱をよく吸収するので試料の加熱乾燥を促進できる。 Since the surface of the sample dish is black, the heat is not reflected on the surface of the sample dish, and the sample dish absorbs the heat well, thus facilitating the heating and drying of the sample.
【０００７】[0007]
本考案を添付図を参照して詳細に説明する。 図１は、本考案の実施例の加熱乾燥型水分計の断面図を示す。この加熱乾燥型 水分計は、図１の参照番号２で総称するごとく、荷重計１５の計量柱の上端に固 定された皿受１４、皿受１４上に載せられた試料皿１１、皿受１４および試料皿 １１を包囲する下部風防１２ｂ、皿受１４の上方に設けた上部風防１２ａ、上部 風防１２ａ内に取り付けられ、試料皿１１内の試料を上方から加熱する赤外線ラ ンプ１３、電子天秤としての荷重計１５を内蔵し、かつ上部風防１２ａおよび下 部風防１２ｂを支持する箱形ハウジング１８と、ハウジング１８内部に設けられ た制御表示部とで構成され、赤外線ランプ１３で試料皿１１内の試料を上方から 加熱して試料含有水分を蒸発させるとともに、試料の重量を適時測定して上述の 式から含有水分を求めるようになっている。すなわち、測定した重量変化値は、 計算回路５から定期的に制御部４に送られ、ここで上記計算式を演算し、得られ た水分変化（％）を表示部８で表示する。 箱形ハウジング１８内の底部には、荷重計１５が固定され、垂直方向上方に延 びる計量柱１５ａの先端は、ハウジング１８の上面壁に設けた開口１８ａを貫通 し、ハウジング１８の上方に突出している。計量柱１５ａの先端には、三つ又状 の皿受１４が固定されている。ハウジング１８の上面には、ボス１６ａを介して 反射板１６が固定され、さらに反射板１６には、皿受１４を囲むように下部風防 １２ｂが固定されている。 The present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows a sectional view of a heat-drying type moisture meter according to an embodiment of the present invention. This heat-drying type moisture meter is generally referred to by the reference numeral 2 in FIG. 1, and is a dish pan 14 fixed on the upper end of the weighing column of the load meter 15, a sample pan 11 placed on the pan pan 14, and a pan tray. 14 and the sample dish 11, a lower windshield 12b that surrounds the sample dish 11, an upper windshield 12a that is provided above the pan receiver 14, and an infrared lamp 13 that is mounted in the upper windshield 12a and heats the sample in the sample dish 11 from above, an electronic balance. A box-shaped housing 18 having a built-in load cell 15 for supporting the upper windshield 12a and the lower windshield 12b, and a control display portion provided inside the housing 18, and the infrared lamp 13 is provided inside the sample dish 11 The sample is heated from above to evaporate the water content in the sample, and the weight of the sample is timely measured to determine the water content from the above equation. That is, the measured weight change value is periodically sent from the calculation circuit 5 to the control unit 4, where the above calculation formula is calculated, and the obtained water change (%) is displayed on the display unit 8. The load meter 15 is fixed to the bottom of the box-shaped housing 18, and the tip of the weighing column 15a extending vertically upward penetrates the opening 18a provided in the upper wall of the housing 18 and projects above the housing 18. ing. A three-pronged tray support 14 is fixed to the tip of the measuring column 15a. A reflection plate 16 is fixed to the upper surface of the housing 18 via a boss 16a, and a lower windshield 12b is fixed to the reflection plate 16 so as to surround the pan receiver 14.
【０００８】 ハウジング１８の上面後方部に固定された支柱（図示せず）には回転可能に上 部風防１２ａが設けられており、加熱乾燥型水分計の動作時には、下部風防１２ ａの直上に整合して位置するようになっている。上部風防１２ａの天井面にはラ ンプソケット１３ａが設けられ、上部加熱源である赤外線ランプ１３の口金が挿 入固定されている。 皿受１４には、試料皿１１が載せられるようになっている。 図２は、試料皿１１を示す斜視図であり、試料皿１１の内表面を黒色としてい る。 以下に上記実施例の作動について説明する。 水分計２を動作状態とし、試料を容れた試料皿１１に皿受１４にセットし、上 部風防１２ａを試料皿１１の上部に配置する。荷重計１５の零点補正（テア）を 行った後、適当量の試料を試料皿に採取して、試料の初期重量を測定する。 この状態で上部加熱源である赤外線ランプ１３に電力を供給して試料を加熱乾 燥させる。荷重計１５は、試料の重量変化を時々刻々と計量し、計算回路５に計 量重量を出力する。また計算回路５の出力は、データ処理装置７に送られ、ここ で前述の計算式から試料の水分値（％）が計算される。以上の動作は、試料が充 分乾燥されるまで継続して行われる。 加熱乾燥型水分計では、加熱乾燥時に試料が試料皿１１にこびりつきやすい場 合があり、使用後の試料皿の清掃を困難にする場合がある。この場合には、使い 捨てのアルミホイル製皿に試料を入れ、これをさらに水分計の試料皿１１内に配 置して加熱乾燥する。このような場合は、アルミホイル製皿も黒色仕上げして熱 吸収を高めるとともに、さらに熱吸収を高めるために、試料皿１１の内外面双方 を黒色仕上げすることが好ましい。 またさらに、アルミホイル製皿の内面にグラシン紙等を貼ってアルミホイル製 皿上で高水分試料を一様に平らに引き延ばすことを容易にさせるようにする場合 があるが、この場合には、黒色のグラシン紙を使用すると蒸発乾燥が同様に促進 される。An upper windshield 12a is rotatably provided on a column (not shown) fixed to a rear portion of the upper surface of the housing 18, and is directly above the lower windshield 12a during operation of the heating / drying type moisture meter. It is designed to be aligned. A lamp socket 13a is provided on the ceiling surface of the upper windshield 12a, and a base of an infrared lamp 13 serving as an upper heating source is inserted and fixed. The sample pan 11 is placed on the pan receiver 14. FIG. 2 is a perspective view showing the sample dish 11, and the inner surface of the sample dish 11 is black. The operation of the above embodiment will be described below. The moisture meter 2 is activated, the sample pan 11 containing the sample is set on the pan receiver 14, and the upper windshield 12a is arranged on the upper part of the sample pan 11. After performing the zero point correction (tare) of the load meter 15, an appropriate amount of sample is sampled in a sample pan and the initial weight of the sample is measured. In this state, electric power is supplied to the infrared lamp 13, which is the upper heating source, to heat and dry the sample. The load meter 15 measures the weight change of the sample moment by moment and outputs the measured weight to the calculation circuit 5. The output of the calculation circuit 5 is sent to the data processing device 7, where the moisture value (%) of the sample is calculated from the above-mentioned calculation formula. The above operation is continuously performed until the sample is fully dried. In the heat-drying type moisture meter, the sample may easily stick to the sample dish 11 during heating and drying, which may make it difficult to clean the sample dish after use. In this case, the sample is placed in a disposable aluminum foil dish, which is further placed in the sample dish 11 of the moisture meter and heated and dried. In such a case, it is preferable that the aluminum foil dish is also black-finished to enhance heat absorption, and in order to further enhance heat absorption, both the inner and outer surfaces of the sample dish 11 are black-finished. Furthermore, there is a case where glassine paper or the like is attached to the inner surface of the aluminum foil dish so that the high moisture sample can be spread evenly and evenly on the aluminum foil dish. The use of black glassine paper also accelerates evaporative drying.
【０００９】[0009]
以上のように試料皿の表面を黒色としたため、試料皿で熱の反射をすることが なく、しかして熱の吸収が良くなり、試料の水分の蒸発を促進させることができ 、もって試料の水分測定を促進することができる。 考案者でなした以下の実験によれば、図３に示すように蒸発乾燥がかなり促進 されることが判明した。 Since the surface of the sample dish is black as described above, the sample dish does not reflect heat, which improves the absorption of heat and accelerates the evaporation of water in the sample. The measurement can be facilitated. According to the following experiment conducted by the inventor, it was found that evaporative drying was significantly promoted as shown in FIG.
【００１０】 実験例１ ステンレス製の試料皿に黒クロームをメッキした試料皿を準備した。比較例と して光沢のある素地ステンレス試料皿を準備した。分光高度計でこれら試料皿の 表面の反射率を測定した。なお、光源としてハロゲンランプを使用した。結果を 図４に示す。図４から黒クロームメッキを施したステンレス試料皿の反射率は、 ０．０２５程度であり、試料皿の表面の反射率をほぼ０．０２５程度以下とすれ ば図３に示すようにかなりの蒸発乾燥が促進される。 Experimental Example 1 A sample dish made of stainless steel and plated with black chrome was prepared. As a comparative example, a glossy base stainless steel sample dish was prepared. The reflectance of the surface of these sample dishes was measured with a spectrophotometer. A halogen lamp was used as the light source. The results are shown in Fig. 4. As shown in Fig. 4, the reflectance of the stainless steel sample plate plated with black chrome is about 0.025, and if the reflectance of the surface of the sample plate is about 0.025 or less, considerable evaporation will occur as shown in Fig. 3. Drying is accelerated.
【図１】本考案の一実施例の加熱乾燥型水分計を示す断
面図。FIG. 1 is a sectional view showing a heat-drying type moisture meter according to an embodiment of the present invention.
【図２】同加熱乾燥型水分計用の試料皿を示す斜視図。FIG. 2 is a perspective view showing a sample dish for the same heat-drying type moisture meter.
【図３】蒸発乾燥の比較実験結果を示すグラフ。FIG. 3 is a graph showing the results of comparative experiments of evaporative drying.
【図４】反射率の比較実験結果を示すグラフ。FIG. 4 is a graph showing the results of comparative experiments on reflectance.
１１ 試料皿 １２ａ 上部風防 １２ｂ 下部風防 １３ 上部加熱源 １４ 皿受 １５ 荷重計 １８ ハウジング 11 sample dish 12a upper windshield 12b lower windshield 13 upper heating source 14 tray receiver 15 load cell 18 housing
Claims (1)
該試料の重量変化を測定し、該重量変化から該試料の含
有水分を求めるようになった加熱乾燥型水分計におい
て、前記試料皿の少なくとも内表面を黒色仕上げしたこ
とを特徴とする加熱乾燥型水分計。1. A heat-drying type moisture meter, wherein a sample in a sample dish is heated and dried from above to measure a weight change of the sample, and the water content of the sample is determined from the weight change. A heat-drying moisture meter, characterized in that at least the inner surface of the dish is finished in black.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4079993U JPH0712957U (en) | 1993-07-27 | 1993-07-27 | Heating / drying type moisture meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4079993U JPH0712957U (en) | 1993-07-27 | 1993-07-27 | Heating / drying type moisture meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0712957U true JPH0712957U (en) | 1995-03-03 |
Family
ID=12590683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4079993U Pending JPH0712957U (en) | 1993-07-27 | 1993-07-27 | Heating / drying type moisture meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0712957U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017090304A (en) * | 2015-11-12 | 2017-05-25 | 日本電信電話株式会社 | Corrosion test method and corrosion test apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233593A (en) * | 1975-09-10 | 1977-03-14 | Toshiba Corp | Method of measuring moisturre contents and apparatus for same |
| JPH0389139A (en) * | 1989-09-01 | 1991-04-15 | Ebara Infilco Co Ltd | Measurement of moisture |
-
1993
- 1993-07-27 JP JP4079993U patent/JPH0712957U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233593A (en) * | 1975-09-10 | 1977-03-14 | Toshiba Corp | Method of measuring moisturre contents and apparatus for same |
| JPH0389139A (en) * | 1989-09-01 | 1991-04-15 | Ebara Infilco Co Ltd | Measurement of moisture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017090304A (en) * | 2015-11-12 | 2017-05-25 | 日本電信電話株式会社 | Corrosion test method and corrosion test apparatus |
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