KR0120903Y1 - Humidity detector - Google Patents
Humidity detectorInfo
- Publication number
- KR0120903Y1 KR0120903Y1 KR2019940012585U KR19940012585U KR0120903Y1 KR 0120903 Y1 KR0120903 Y1 KR 0120903Y1 KR 2019940012585 U KR2019940012585 U KR 2019940012585U KR 19940012585 U KR19940012585 U KR 19940012585U KR 0120903 Y1 KR0120903 Y1 KR 0120903Y1
- Authority
- KR
- South Korea
- Prior art keywords
- moisture
- collecting
- measured
- capacitance
- moisture content
- Prior art date
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/10—Measuring moisture content, e.g. by measuring change in length of hygroscopic filament; Hygrometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Food Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
본 고안은 수분함량 상태의 측정을 필요로 하는 추곡된 곡물이나, 토양, 의약품 등에 대하여 간단 용이하게 수분함량을 측정해 낼 수 있도록한 수분측정기에 관한 것으로, 본 고안은 본 고안은 측정하고자 하는 피측정물을 채취하는 채취수단과, 상기 채취수단에 의하여 채취된 피측정물의 정전용량을 측정된 정전용량에 대한 수분함량을 산출하는 수분측정수단과, 상기 수분측정수단에서 산출된 수분함량을 표시하는 표시수단을 구비한 손잡이수단으로 구성하여서 된 것을 특징으로 한다.The present invention relates to a moisture measuring device that can easily measure the moisture content of the curved grain, soil, pharmaceuticals, etc. requiring the measurement of the moisture content state, the present invention is intended to measure the blood to be measured A sampling means for collecting the measurement object, a moisture measuring means for calculating the moisture content of the measured object collected by the collecting means with respect to the measured capacitance, and a water content calculated by the moisture measuring means; It is characterized by consisting of a handle means having a display means.
Description
제1도는 본 고안 수분측정기의 일부 절결 단면도.1 is a partial cutaway cross-sectional view of the present moisture meter.
*도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10:채취수단 11:절연물10: collecting means 11: insulator
12:채취구 13:절연수단12: Pick-up 13: Insulation means
14:금속봉 20:손잡이수단14: metal rod 20: handle means
21:수분측정수단 22:표시수단21: moisture measuring means 22: display means
본 고안은 수분측정기에 관한 것으로, 특히 수분함량 상태의 측정을 필요로 하는 추곡된 곡물이나, 토양, 의약품 등에 대하여 간단 용이하게 수분함량을 측정해 낼 수 있도록 한 수분측정기에 관한 것이다.The present invention relates to a moisture measuring device, and more particularly to a moisture measuring device that can easily measure the moisture content of the bent grain, soil, pharmaceuticals, etc. that need to measure the moisture content.
일반적으로 추곡된 곡물이나 식물을 경작하게 되는 토양 또는 의약품을 제조하게 되는 화합물에 대하여는 수분함량상태를 정확하게 측정하여야 한다.In general, moisture content should be accurately measured for soils that produce cultivated grains or plants or for compounds that produce pharmaceuticals.
왜냐하면, 추곡된 곡물의 경우, 건조상태로 품질을 판정하게 되는데, 이때 곡물에 수분함량이 많고 적음에 따라, 보관상태를 달리하여야 곡물의 변질을 방지할 수 있기 때문이다.This is because, in the case of the curved grain, the quality is determined in a dry state, since the moisture content of the grain is high and low, so that deterioration of the grain can be prevented by changing the storage state.
상기 토양의 경우에도 경작되는 식물이나 곡물에 따라 수분상태를 달리하여야 경작되는 식물이 썩거나, 생산량의 저하되는 것을 방지할 수 있으며, 또한 의약품의 경우에도 화합물성분의 수분함량상태를 정확하게 측정하여야만 정확한 함량의 의약품을 제조할 수 있기 때문이다.Even in the case of the soil, the moisture condition is changed according to the cultivated plants or grains to prevent the cultivated plant from rotting or lowering the yield. Also, in the case of pharmaceuticals, the moisture content state of the compound component must be accurately measured only for accurate measurement. This is because the drug can be prepared in the content.
이와같이 정확한 수분함량상태를 측정함에 있어서, 곡물의 수분측정은 소량의 곡물을 가루로 만든후, 전기저항을 측정하여 수분율을 측정하게 되는데, 이때 소량의 곡물로 측정하게 되므로, 정확한 수분 측정을 하기 위해서는 여러번 측정하여야 하는 번거로움이 있고, 상기 토양의 수분측정은 수분을 잘 흡수하는 물질을 충분한 시간동안 깊숙히 묻어 두었다가 무게를 측정하여 수분함량을 측정하게 되므로 수분함량을 측정하는데 번거로움 및 측정시간을 많이 필요로 하는 문제점을 가지고 있는가 하면, 또한 의약품의 수분측정은 화합물등에 함유된 수분을 가수분해하여 화학적 조성비를 조사하여 수분율을 측정하게 되므로 측정방법이 복잡할 뿐만 아니라, 측정장치가 고가인 문제점을 가지고 있었다.In measuring the exact moisture content as described above, the moisture measurement of the grain is made of a small amount of grain and then measured the electrical resistance by measuring the electrical resistance, in this case it is measured with a small amount of grain, in order to measure the accurate moisture There is a hassle to be measured several times, and the moisture measurement of the soil is buried deep enough for a sufficient time to absorb the moisture-absorbing material, and then the weight is measured to measure the moisture content, so it takes a lot of trouble and time to measure the moisture content. In addition, there is a problem that the measurement of the water content of the drug is not only complicated because of the hydrolysis of the water contained in the compound to investigate the chemical composition ratio to measure the moisture content, but also has a problem that the measuring device is expensive. there was.
따라서 본 고안의 목적은 수분함량 측정을 필요로 하는 곡물, 토양, 의약품에 대하여 간단 용이하면서 정확한 수분함량을 측정할 수 있는 수분측정기를 제공하고자 하는데 있으며, 상기의 목적을 실현하기 위하여 본 고안은 측정하고자 하는 피측정물을 채취하는 채취수단과, 상기 채취수단에 의하여 채취된 피측정물의 정전용량을 측정하고, 측정된 정전용량에 대한 수분함량을 산출하는 수분측정수단과, 상기 수분측정수단에서 산출된 수분함량을 표시하는 표시수단을 구비한 손잡이수단으로 구성하여서 된 것을 특징으로 한다.Therefore, an object of the present invention is to provide a moisture measuring device capable of measuring a simple, easy and accurate water content for grains, soils, and pharmaceuticals that require water content measurement. Sampling means for collecting the to-be-measured object, moisture measuring means for measuring the capacitance of the measured object collected by the collecting means, calculating moisture content for the measured capacitance, and calculating in the moisture measuring means. Characterized in that it consists of a handle means having a display means for displaying the moisture content.
이하 첨부된 도면에 의거 본 고안을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
제1도는 본 고안 수분측정기의 일부절결 단면도로서, 상부에는 측정하고자 피측정물을 채취하는 채취수단(10)과, 상기 채취수단(10)의 하부에는 채취되는 피측정물의 수분함량을 측정하고, 측정된 수분상태를 표시하는 손잡이수단(20)으로 구성하되, 상기 채취수단(10)은 외벽을 절연물(11)로 도금시킨 금속재의 원통형으로 구성하고, 상단은 피측정물을 용이하게 채취할 수 있도록 삽 형상으로 경사지게 절단된 채취구(12)를 형성하며, 상기 채취수단(10)의 하단은 상기 채취구(12)를 통해서 채취된 피측정물이 하부로 흘러내는 것을 방지하는 부도체의 절연수단(13)을 마련하고, 이 절연수단(13)의 중앙에는 상부로 소정길이의 금속봉(14)이 결합된다.1 is a partial cutaway cross-sectional view of the moisture measuring device of the present invention, in the upper part of the collecting means 10 for collecting the object to be measured, and in the lower part of the collecting means 10 to measure the water content of the object to be collected, Consists of a handle means 20 for displaying the measured moisture state, the collecting means 10 is composed of a cylindrical shape of a metal material plated with an insulator 11, the upper end can easily collect the object to be measured And forming a sampling port 12 inclined in a shovel shape, the lower end of the collecting means 10 is an insulating means of a non-conductor to prevent the measurement object collected through the collecting port 12 to flow to the bottom (13) is provided, and the metal rod 14 of predetermined length is coupled to the upper part in the center of this insulating means 13.
상기 채취수단(10)의 하부에 결합되는 손잡이수단(20)에는 상기 채취수단(10)의 내벽과, 금속봉(13)과 연결되어 피측정물에 정전용량을 감지하고, 이 감지된 용량을 기설정된 용량에 따른 수분함량을 측정하는 수분측정수단(21)과, 상기 수분측정수단(21)에서 측정된 수분상태를 표시하는 표시수단(22)을 구비하여서 된 것이다.The handle means 20 coupled to the lower portion of the collecting means 10 is connected to the inner wall of the collecting means 10 and the metal rod 13 to sense capacitance on the object to be measured, and the detected capacity is recorded. It is provided with a moisture measuring means 21 for measuring the moisture content according to the set capacity, and a display means 22 for displaying the moisture state measured by the moisture measuring means 21.
도면중 미설명부호 23은 전원스위치이다.In the figure, reference numeral 23 denotes a power switch.
상기와 같이 구성되는 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention is configured as described above are as follows.
먼저, 수분측정기로 측정하고자 하는 피측정물(곡물, 토양, 화합물)을 채취수단(10)의 채취구(12)로 채취를 하게 되고, 상기 채취된 피측정물은 상기 채취수단(10)의 하부 절연수단(13)으로부터 금속내벽과 중앙의 금속봉(14) 사이에 채워지게 된다.First, the measurement object (grain, soil, compound) to be measured by the moisture meter is collected by the collecting port 12 of the collecting means 10, and the collected measured object of the collecting means 10 The lower insulating means 13 is filled between the inner metal wall and the central metal rod 14.
이때, 채워진 피측정물에 함유되는 수분은 어느물질보다 큰 유전성을 띄고 있고, 상기 수분의 상대 유전율은 약 80으로 다른 어떤 물질보다 큰 값을 가지게 된다.At this time, the moisture contained in the filled measurement object has a greater dielectric constant than any material, the relative dielectric constant of the moisture is about 80 has a larger value than any other material.
그러므로, 상기와 같이 채취수단(10)에 피측정물을 채운상태에서 수분측정기에 전원스위치(23)를 온하여 상기 금속봉(14)과 채취수단(10)의 내벽에 전압을 인가함으로써, 수분측정수단(21)에서는 상기 금속봉(14)과 채취수단(10)간에 축전기용량을 감지하게 되는바, 이때 감지되는 축전기용량(C)은 근사적으로 Q/V=εL/(ln r1/r2) 되고, 여기서, L봉의 길이, r1은 외부 원통의 반지름, r2은 금속봉의 반지름이다.Therefore, the moisture measurement is performed by turning on the power switch 23 to the moisture meter in the state in which the measuring means 10 is filled with the object to be measured as described above, and applying a voltage to the inner wall of the metal rod 14 and the collecting means 10. The means 21 detects the capacitance between the metal rod 14 and the collecting means 10, wherein the detected capacitance C is approximately Q / V = εL / (ln r1 / r2). Where L is the length of the rod, r1 is the radius of the outer cylinder, and r2 is the radius of the metal rod.
따라서 전극을 구성하는 원통형의 채취수단(10)과 금속봉의 길이를 크게 또는 작게 하거나, 전극간에 비유전율(ε)이 큰물질 또는 작은물질을 채우거나, 전극간에 반지름 비율(r1/r2)을 크게 또는 작게함에 따라 축전기용량(C)이 다르게 감지되게 된다.Therefore, the length of the cylindrical sampling means 10 and the metal rod constituting the electrode is made larger or smaller, the material having a large relative dielectric constant (ε) or a small material is filled between the electrodes, or the radius ratio (r1 / r2) is increased between the electrodes. Alternatively, as the capacitance decreases, the capacitance C is sensed differently.
그러므로, 상기 금속봉(14)과 채취수단(10)간에 채워진 피측정물의 종류나, 피측정물에 함유되어 있는 수분함량 상태에 따라 상기 수분측정수단(21)에서는 정전용량이 다르게 감지하게 되고, 이와같이 다르게 감지되는 정전용량에 대하여 상기 수분측정수단(21)에서는 기설정되어 있는 정전용량에 대한 수분함량을 산출하고, 이 산출된 수분함량은 표시수단(22)을 통해서 디지탈로 표시하게 됨으로써 피측정물의 함유되어 있는 수분함량을 측정해 낼 수 있게 되는 것이다.Therefore, the capacitance is differently sensed by the moisture measuring means 21 according to the type of the measured object filled between the metal rod 14 and the collecting means 10 or the water content state contained in the measured object. The moisture measuring means 21 calculates a moisture content with respect to a predetermined capacitance with respect to the capacitance sensed differently, and the calculated moisture content is displayed digitally through the display means 22, thereby reducing the The moisture content can be measured.
이상에서 설명한 바와같이 본 고안은 측정하고자 하는 피측정물을 전극간에 넣어 정전용량을 감지하고, 이 감지된 정전용량에 대하여 기설정된 정전용량에 따른 수분함량을 산출하고 표시하도록 함으로써, 상기 피측정물에 함유되어 있는 수분함량을 간단용이하게 측정해 낼 수 있는 효과를 제공하게 되는 것이다.As described above, the present invention detects capacitance by placing an object to be measured between electrodes, and calculates and displays a moisture content according to a predetermined capacitance with respect to the detected capacitance, thereby measuring the measured object. It will provide an effect that can easily measure the moisture content contained in the.
Claims (1)
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Application Number | Priority Date | Filing Date | Title |
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KR2019940012585U KR0120903Y1 (en) | 1994-05-31 | 1994-05-31 | Humidity detector |
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KR2019940012585U KR0120903Y1 (en) | 1994-05-31 | 1994-05-31 | Humidity detector |
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KR950034010U KR950034010U (en) | 1995-12-18 |
KR0120903Y1 true KR0120903Y1 (en) | 1998-08-01 |
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KR2019940012585U KR0120903Y1 (en) | 1994-05-31 | 1994-05-31 | Humidity detector |
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