SU396565A1 - ALL-UNION PL :: cgn ^; 1? | - ^?: ^ D - Google Patents

ALL-UNION PL :: cgn ^; 1? | - ^?: ^ D

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Publication number
SU396565A1
SU396565A1 SU1674955A SU1674955A SU396565A1 SU 396565 A1 SU396565 A1 SU 396565A1 SU 1674955 A SU1674955 A SU 1674955A SU 1674955 A SU1674955 A SU 1674955A SU 396565 A1 SU396565 A1 SU 396565A1
Authority
SU
USSR - Soviet Union
Prior art keywords
temperature
sample
blackness
cgn
union
Prior art date
Application number
SU1674955A
Other languages
Russian (ru)
Inventor
М. Щербина Д.
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 filed Critical
Priority to SU1674955A priority Critical patent/SU396565A1/en
Application granted granted Critical
Publication of SU396565A1 publication Critical patent/SU396565A1/en

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Description

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Изобретение относитс  к области теплофизически .х и температурных измерений в различных област х техники и метрологии.The invention relates to the field of thermophysical and temperature measurements in various fields of engineering and metrology.

Известны способы определени  степени черноты . По одним способам измер ют радиационную и истинную температуру образца, а степень черноты определ ют по формуле Стефана-Больцмана , по другим - измер ют подводимую к образцу мощность и истинную температуру .Known methods for determining the degree of blackness. In one method, the radiation and the true temperature of the sample are measured, and the degree of blackness is determined by the Stefan-Boltzmann formula, in others, the power supplied to the sample and the true temperature are measured.

Однако при осуществлении этих способов необходимо точное измерение истинной температуры , что дл  многих материалов, особенно керамических, трудно осуществимо.However, the implementation of these methods requires an accurate measurement of the true temperature, which is difficult for many materials, especially ceramic materials.

Цель изобретени  - обеспечение возможности измерени  интегральной степени черноты образцов, истинна  температура которых не быть измерена достаточно точно.The purpose of the invention is to make it possible to measure the integral blackness degree of samples whose true temperature cannot be measured accurately enough.

Это достигаетс  тем, что образец облучают модулированным излучением абсолютно черного тела, температуру которого мен ют в процессе измерени , измер ют коэффициент отражени  образца и определ ют истинную температуру образца из уравнени This is achieved by irradiating the sample with modulated blackbody radiation, the temperature of which changes during the measurement, measuring the reflectance of the sample and determining the true temperature of the sample from the equation

7 11-(Г),.7 11- (Y) ,.

где Т - температура абсолютно черного тела; R(T) - коэффициент отражени  образца при температуре Т абсолютно черного тела;where T is the temperature of an absolutely black body; R (T) is the reflection coefficient of the sample at the temperature T of the black body;

Тг - радиационна  температура образца. Суть изобретени  заключаетс  в том, что из всей совокупности значений Т и 7(Г) только одна пара  вл етс  решением этого управнени  и соответствует истинной температуре образца и его интегральной степени черноты.Tg is the radiation temperature of the sample. The essence of the invention is that out of the entire set of T and 7 (D) values, only one pair is the solution to this control and corresponds to the true temperature of the sample and its integral degree of blackness.

Предмет изобретени Subject invention

Способ измерени  интегральной степени черноты по истинной температуре образца путем измерени  радиационной температуры образца , отличающийс  тем, что, с целью измерени  интегральной степени черноты образцов , истинную температуру которых непосредственно измерить невозможо, образец облучают модулированным излучением черного тела, температуру которого мен ют в процессе измерени , измер ют коэффициент отражени  образца и определ ют истинную температуру из уравнени A method of measuring the integral degree of blackness at the true temperature of the sample by measuring the radiation temperature of the sample, characterized in that, in order to measure the integral degree of blackness of the samples, the true temperature of which cannot be directly measured, the sample is irradiated with modulated blackbody radiation, the temperature of which is changed during the measurement, measure the reflection coefficient of the sample and determine the true temperature from the equation

Г 11-/(Г),.G 11 - / (G) ,.

где Т - температура абсолютно черного тела; Тг-радиационна  температура образца; /(Г) - коэффициент отражени  образца цри температуре Т абсолютно черного тела.where T is the temperature of an absolutely black body; Tg is the radiation temperature of the sample; / (T) is the reflection coefficient of the sample when the temperature T is of an absolutely black body.

SU1674955A 1971-06-28 1971-06-28 ALL-UNION PL :: cgn ^; 1? | - ^?: ^ D SU396565A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1674955A SU396565A1 (en) 1971-06-28 1971-06-28 ALL-UNION PL :: cgn ^; 1? | - ^?: ^ D

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1674955A SU396565A1 (en) 1971-06-28 1971-06-28 ALL-UNION PL :: cgn ^; 1? | - ^?: ^ D

Publications (1)

Publication Number Publication Date
SU396565A1 true SU396565A1 (en) 1973-08-29

Family

ID=20480823

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1674955A SU396565A1 (en) 1971-06-28 1971-06-28 ALL-UNION PL :: cgn ^; 1? | - ^?: ^ D

Country Status (1)

Country Link
SU (1) SU396565A1 (en)

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