SU549727A1 - Contact primary humidity converter - Google Patents

Contact primary humidity converter

Info

Publication number
SU549727A1
SU549727A1 SU2172946A SU2172946A SU549727A1 SU 549727 A1 SU549727 A1 SU 549727A1 SU 2172946 A SU2172946 A SU 2172946A SU 2172946 A SU2172946 A SU 2172946A SU 549727 A1 SU549727 A1 SU 549727A1
Authority
SU
USSR - Soviet Union
Prior art keywords
contact primary
converter
humidity converter
primary humidity
contact
Prior art date
Application number
SU2172946A
Other languages
Russian (ru)
Inventor
Владлен Семенович Ройфе
Original Assignee
Научно-исследовательский институт строительной физики
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Научно-исследовательский институт строительной физики filed Critical Научно-исследовательский институт строительной физики
Priority to SU2172946A priority Critical patent/SU549727A1/en
Application granted granted Critical
Publication of SU549727A1 publication Critical patent/SU549727A1/en

Links

Landscapes

  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Description

Преобразователь помещаетс  в испытуемый материал и с помощью соединительной линии подключаетс  к измерительному устройству , фиксирующему собственную частоту колебаний контура, образованного параллельно включенными емкостью и индуктивностью электродных систем преобразовател  и емкостью соединительной линии. При наличии в исследуемом материале переменной электропроводности эквивалентное сопротивление потерь оказываетс  включенным параллельно контуру и не оказывает вли ни  на собственную частоту колебаний параллельного контура. Технико-экономическа  эффективность преобразовател  обусловлена уменьшением трудоемкости и длительности получени  информации о влажности локальных зон материала, например, при длительных теплофизических испытани строительных конструкций в климатическиХ1 ,камерах. ,. - Фор.м-ула изобретени  . тг - . . :Контактный первичный преооразователь влажности, содержащий плоские катущку индуктивности и конденсатор, включенные параллельно , отличающийс  тем, что, с целью новыщени  чувствительности измерений , он выполнен в виде диэлектрической пластины, на одной поверхности которой рас положены электроды конденсатора, а на противоположной-витки катущки индуктивности, причем площади поверхностей, ограниченные наружным электродом конденсатора и наружным витком катущки индуктивности, равны между собой, а их геометрическиецентры расположены соосно. Источники информации, прин тые во внимание при экспертизе: 1. Авторское свидетельство СССР JVe 79164, кл. G 01 N 27/22, 1948. 2.М. А. Берлинер «Измерени  влажности, «Энерги , М., 1973, с. 64. 3.Авторское свидетельство СССР № 129366, кл. G 01 N 27/22, 1959 (прототип).The converter is placed in the test material and connected to a measuring device by means of a connecting line, which fixes its own oscillation frequency of the circuit formed in parallel by the capacitance and inductance of the converter electrode systems and the capacity of the connecting line. If there is a variable electrical conductivity in the test material, the equivalent loss resistance is turned on parallel to the circuit and does not affect the natural frequency of oscillation of the parallel circuit. The technical and economic efficiency of the converter is due to the reduction in the labor intensity and the duration of obtaining information on the moisture content of the local zones of the material, for example, during long-term thermophysical testing of building structures in climate X1 chambers. , - Form. Ula of the invention. tg - . : A contact primary moisture transformer containing a flat inductance coil and a capacitor connected in parallel, characterized in that, in order to increase the sensitivity of the measurements, it is made in the form of a dielectric plate, on one surface of which the electrodes of the capacitor are placed, and on the opposite side of the inductance coil The surface areas bounded by the outer electrode of the capacitor and the outer turn of the inductor are equal to each other, and their geometric centers are located with oosno Sources of information taken into account in the examination: 1. USSR Copyright Certificate JVe 79164, cl. G 01 N 27/22, 1948. 2.M. A. Berliner, “Measurements of Humidity,“ Energie, M., 1973, p. 64. 3. USSR author's certificate No. 129366, cl. G 01 N 27/22, 1959 (prototype).

SU2172946A 1975-09-24 1975-09-24 Contact primary humidity converter SU549727A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU2172946A SU549727A1 (en) 1975-09-24 1975-09-24 Contact primary humidity converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2172946A SU549727A1 (en) 1975-09-24 1975-09-24 Contact primary humidity converter

Publications (1)

Publication Number Publication Date
SU549727A1 true SU549727A1 (en) 1977-03-05

Family

ID=20631949

Family Applications (1)

Application Number Title Priority Date Filing Date
SU2172946A SU549727A1 (en) 1975-09-24 1975-09-24 Contact primary humidity converter

Country Status (1)

Country Link
SU (1) SU549727A1 (en)

Similar Documents

Publication Publication Date Title
SE8106102L (en) RESISTANSMETARE
US2636962A (en) Bouyoucos
SE7805955L (en) DEVICE FOR SATURATION OF THE STAND HEIGHT OF ELECTRICALLY CONDUCTIVE WOOD SHOES
AT340038B (en) MEASURING ARRANGEMENT FOR DETERMINING BIOLOGICAL MEASUREMENT PARAMETERS
IT1035630B (en) ELECTRONIC AND AUTOMATIC APPARATUS FOR THE MEASUREMENT OF BRONCH RESISTANCE AND PULMONARY ELASTICITY
SU549727A1 (en) Contact primary humidity converter
SE8501270L (en) Electrode for Saturation of Relative Capacitivity
SU513305A1 (en) Sensor for measuring bulk and porous materials
MX145283A (en) IMPROVEMENTS IN METHOD AND APPARATUS TO TEST THE INTEGRITY OF THE ELECTRICAL INSULATION OF A DIAGRAPHY PROBE THAT HAS A PLURALITY OF ELECTRODES
GB1233789A (en)
ES512716A0 (en) PROCEDURE AND DEVICE FOR THE COMBUSTION OF HUMID BITUMINOUS SHORTS WITH LOW HEAT POWER. OTHER:
BE845894A (en) ELECTRICAL HEAT QUANTITY METER
SE7611936L (en) DEVICE FOR FIXING THE MOISTURE IN A HEAT DAMPING INSULATION FOR PIPELINES AND THE LIKE
RU93005234A (en) MEASURING TEST
SU474749A1 (en) Autocompensation device for remote measurement of active resistances
SU828026A1 (en) Device for investigation of porous material capillary properties
SU676951A1 (en) Dielectric testing device
SU1741798A1 (en) Device for measurement of electrical parameters of surface layer
AT356946B (en) CIRCUIT ARRANGEMENT FOR AN ELECTROCHEMICAL MEASURING DEVICE
SU447602A1 (en) Humidity sensor
MX150268A (en) IMPROVEMENTS TO AN INDICATOR DEVICE TO MEASURE AND INDICATE CHANGES IN THE ELECTRICAL RESISTANCE OF LIVING BODIES
SU121271A1 (en) Moisture meter for example for grain
SU125074A1 (en) Elastic element for wire converters
SU113867A1 (en) Device for measuring the capacity of the electrical network
DD128274A1 (en) TESTING DEVICE FOR DETERMINING THE SURFACE TEXTURE OF EXHAUSTIVE ELEMENTS