SU1635101A1 - Method of measurement of moisture content of capillary- porous materials - Google Patents
Method of measurement of moisture content of capillary- porous materials Download PDFInfo
- Publication number
- SU1635101A1 SU1635101A1 SU884446493A SU4446493A SU1635101A1 SU 1635101 A1 SU1635101 A1 SU 1635101A1 SU 884446493 A SU884446493 A SU 884446493A SU 4446493 A SU4446493 A SU 4446493A SU 1635101 A1 SU1635101 A1 SU 1635101A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- moisture content
- capillary
- porous materials
- measurement
- electrical resistance
- Prior art date
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 4
- 239000011148 porous material Substances 0.000 title claims abstract description 4
- 238000000034 method Methods 0.000 title claims description 4
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims 3
- 238000011088 calibration curve Methods 0.000 abstract 1
- 239000012212 insulator Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
Изобретение относитс к измерению влажности капилл рно-пористых материалов . Цель изобретени - повышение быстродействи . Производ т кратковременный нагрев материала импульсом энергии, не превышающим 7,5 Дж на 1 см3 материала, при непрерывном измерении электрического сопротивлени и фиксировании его минимального значени . Влажность материала определ ют из калибровочного графика по отношению электрического сопростивле- ни до нагрева и его экстремального значени . Продолжительность одного измерени не превышает 1-2,5 мин.The invention relates to measuring the moisture content of capillary-porous materials. The purpose of the invention is to increase speed. The material is briefly heated by a pulse of energy not exceeding 7.5 J per 1 cm3 of material, while continuously measuring the electrical resistance and fixing its minimum value. The moisture content of the material is determined from the calibration curve by the ratio of the electrical resistance to heat and its extreme value. The duration of one measurement does not exceed 1-2.5 minutes.
Description
Изобретение относитс к измерительной технике, предназначено дл определени влажности цеолитов и может быть использовано дл измерени влажности и других капилл рно-пористых тел.The invention relates to a measurement technique, is intended to determine the moisture content of zeolites, and can be used to measure humidity and other capillary-porous bodies.
Цель изобретени - повышение быстродействи измерени влажности капилл рно-пористых материалов.The purpose of the invention is to increase the speed of moisture measurement of capillary-porous materials.
Способ осуществл ют следующим образом .The method is carried out as follows.
Дл осуществлени способа используют погружной контактный датчик с двум электродами, между которыми на изол торах установлен тепловыдел ющий элемент. Датчик ввод т в измер емый материал, который располагают снаружи электродов. Затем через тепловыдел ющий резистор- ный элемент в течение фиксированного промежутка времени (пор дка нескольких секунд) пропускают стабильный по значению ток. Тепло от элемента через изол торы и электроды датчика переходит вFor implementing the method, an immersion contact sensor with two electrodes is used, between which a heat generating element is installed on the insulators. The sensor is introduced into the measured material, which is placed outside the electrodes. Then a stable current is passed through the heat-generating resistor element for a fixed period of time (on the order of several seconds). The heat from the element through the insulators and electrodes of the sensor goes into
СОWITH
СWITH
исследуемый материал и нагревает его. Максимальное приращение температуры и св занное с ним изменение электрического сопротивлени материала зависит от тепло- физических свойств материала, которые в свою очередь однозначно определ ютс влажностью материала.investigated material and heats it. The maximum temperature increment and the associated change in the electrical resistance of the material depends on the thermal physical properties of the material, which in turn are uniquely determined by the moisture content of the material.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884446493A SU1635101A1 (en) | 1988-05-23 | 1988-05-23 | Method of measurement of moisture content of capillary- porous materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884446493A SU1635101A1 (en) | 1988-05-23 | 1988-05-23 | Method of measurement of moisture content of capillary- porous materials |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1635101A1 true SU1635101A1 (en) | 1991-03-15 |
Family
ID=21383830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU884446493A SU1635101A1 (en) | 1988-05-23 | 1988-05-23 | Method of measurement of moisture content of capillary- porous materials |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1635101A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7150184B1 (en) * | 2003-08-27 | 2006-12-19 | Phase Dynamics, Inc | Density independent moisture analyzer |
-
1988
- 1988-05-23 SU SU884446493A patent/SU1635101A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР № 276505, кл. G 01 N 27/02, 1969. Како Н., Яманэ Я. Датчики и микро-ЭВМ. Л.: Энергоиздат, 1986, с.80-84. Берлинер М.А. Электрические измерени , автоматический контроль, регулирование влажности. М.: Энерги , 1965, с.11. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7150184B1 (en) * | 2003-08-27 | 2006-12-19 | Phase Dynamics, Inc | Density independent moisture analyzer |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0155187B1 (en) | Novel method for rapidly determining the moisture content of a substance | |
CA2049330A1 (en) | Pseudo-Continuous Process for the Interrogation in an Oxydable Gas Detector | |
CA2011659A1 (en) | Measuring sensor for fluid state determination and method for measurement using such sensor | |
JPS5571919A (en) | Measurement of temperature | |
SU1635101A1 (en) | Method of measurement of moisture content of capillary- porous materials | |
SU752163A1 (en) | Material moisture-content determining method | |
JPS56648A (en) | Humidity measuring method | |
JPS5666745A (en) | Humidity detector | |
JP3748424B2 (en) | Scaling law moisture measurement method and apparatus | |
JPH0523710B2 (en) | ||
SU1742697A1 (en) | Method of moisture content measurement in loose materials | |
SU1318885A1 (en) | Method of measuring thermal conductivity of material | |
SU808871A1 (en) | Method of measuring temperature of metal-reinforced articles | |
SU1495699A1 (en) | Method and apparatus for determining kinetic parameters of heat decomposition of polymer materials | |
SU471513A1 (en) | Cone Pyroelectric Radiation Detector | |
JPS6443748A (en) | Heat resistance testing device for plastic | |
SU731365A1 (en) | Device for measuring heat conductance coefficient of solid bodies | |
RU2088902C1 (en) | Device for measuring moisture content | |
SU1002930A1 (en) | Material humidity determination method | |
SU1693547A1 (en) | Method for determination of milk fatness | |
SU535260A1 (en) | The method of heat and moisture treatment of concrete and concrete products | |
SU1490457A1 (en) | Method for monitoring stressed-deformed state of metal parts | |
SU280364A1 (en) | CALORIMETER FOR MEASURING ENERGY OF ELECTROMAGNETIC RADIATION | |
SU127843A1 (en) | Method for determining thermal diffusivity and thermal conductivity of samples of material | |
SU1711052A1 (en) | Method of testing heat-insulating material thermophysical characteristics |