SU1627979A1 - Method for determining systematic error of ultrasonic device - Google Patents
Method for determining systematic error of ultrasonic device Download PDFInfo
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- SU1627979A1 SU1627979A1 SU884487342A SU4487342A SU1627979A1 SU 1627979 A1 SU1627979 A1 SU 1627979A1 SU 884487342 A SU884487342 A SU 884487342A SU 4487342 A SU4487342 A SU 4487342A SU 1627979 A1 SU1627979 A1 SU 1627979A1
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Abstract
Изобретение относитс к контрольно-измерительной технике и может быть использовано дл контрол физико-механических свойств строительных и других материалов. Цель изобретени - повышение точности измерени дл приборов с фиксированной базой прсзвучивани . На образце U-образ- ной формы, имеющем два параллельных пр молинейных участка, рассто ние между концами которых равно базе прозвучивани , ультразвуковые колебани возбуждают в четырех точках, расположенных симметрично по две на пр молинейных участках образца, рассто ние между которыми равно базе прозвучисани , измер ют врем распространени ультразвука между точками на пр молинейных участках, между точками , дальними от концов, и между точками, ближними к концам образца, а систематическую погрешность определ ют как половину разности между суммой первых трех измерений и результатом четвертого измерени . 1 ил. (Л СThe invention relates to instrumentation technology and can be used to control the physicomechanical properties of building and other materials. The purpose of the invention is to improve the measurement accuracy for devices with a fixed sound base. On a U-shaped sample that has two parallel rectilinear sections, the distance between the ends of which is equal to the sounding base, ultrasonic oscillations excite at four points symmetrically arranged in two points on the straightline sections of the sample, ultrasound propagation time is measured between points on straight lines, between points furthest from the ends, and between points close to the ends of the sample, and the systematic error is defined as half the difference spine between the sum of the first three measurements and the result of the fourth measurement. 1 il. (Ls
Description
Изобретение относитс к контрольно-измерительной технике и может быть использовано дл контрол физико-механических свойств строительных и других материалов в строительстве, энергетике и других отрасл х народного хоз йства.The invention relates to measuring instrumentation and can be used to control the physicomechanical properties of building and other materials in construction, energy, and other branches of the national economy.
Цель изобретени - повышение точности измерени дл приборов с фиксированной базой прозвучивани .The purpose of the invention is to improve the measurement accuracy for instruments with a fixed sound base.
На чертеже представлен образец, реализующий способ определени систематической погрешности ультразвуковых приборов.The drawing shows a sample that implements a method for determining the systematic error of ultrasonic devices.
Образен, выполнен U-образной формы и имеет дра параллельных пр молинейных участка, рассто ние между концами которых par но базе прозвучивани I.It is shaped, made in a U-shape and has a core of parallel rectilinear sections, the distance between the ends of which is par to the sounding base I.
На чертеже указаны точки, в которые устанавливаютс ультразвуковые преобразователи . Сначала провод т измерение времени распространени ультразвука ш между точками 1 и 2, э затем тз,4 - между точками 3 и 4, причем точки расположены на пр молинейных участка образца симметрично и рассто ние между точками 1 и 2, 2 и 4, 3 и 4, 1 и 3 равно базе прозвучивани I.The drawing shows the points at which the ultrasound transducers are installed. First, the time of ultrasound propagation W between points 1 and 2, e, then T3, 4 between points 3 and 4 is measured, with the points located symmetrically on the rectilinear sample and the distance between points 1 and 2, 2 and 4, 3 and 4, 1 and 3 is equal to the sound base I.
Затем провод т измерение времени распространени ti.a между точками 1 и 3, а после этого - t2 4 между точками 2 и 4.Then, the measurement of the propagation time ti.a between points 1 and 3 and then t2 4 between points 2 and 4 is carried out.
Систематическа погрешность прибора определ етс по формулеThe systematic error of the instrument is determined by the formula
Д tl 2 + t34 + t2,4 - t1 3D tl 2 + t34 + t2,4 - t1 3
оabout
v| Юv | YU
Таким образом, способ позвол ет повысить точность измерени систематической погрешности дл приборов с фиксированной базой прозвучивани .Thus, the method allows to increase the accuracy of measuring systematic error for devices with a fixed sound base.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884487342A SU1627979A1 (en) | 1988-09-27 | 1988-09-27 | Method for determining systematic error of ultrasonic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884487342A SU1627979A1 (en) | 1988-09-27 | 1988-09-27 | Method for determining systematic error of ultrasonic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1627979A1 true SU1627979A1 (en) | 1991-02-15 |
Family
ID=21401278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884487342A SU1627979A1 (en) | 1988-09-27 | 1988-09-27 | Method for determining systematic error of ultrasonic device |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1627979A1 (en) |
-
1988
- 1988-09-27 SU SU884487342A patent/SU1627979A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР № 849065,кл. G 01 Н 5/00.1981. Авторское свидетельство СССР № 744320, кл. G 01 Н 5/00, 1980. * |
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