SU330336A1 - - Google Patents
Info
- Publication number
- SU330336A1 SU330336A1 SU1431947A SU1431947A SU330336A1 SU 330336 A1 SU330336 A1 SU 330336A1 SU 1431947 A SU1431947 A SU 1431947A SU 1431947 A SU1431947 A SU 1431947A SU 330336 A1 SU330336 A1 SU 330336A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- freezing
- sample
- optically active
- cylinder
- strain gauges
- Prior art date
Links
- 238000007710 freezing Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N Maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 230000002706 hydrostatic Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000003287 optical Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
Description
СПОСОБ ИЗГОТОВЛЕНИЯ ОПТИЧЕСКИ АКТИВНЫХ ТЕНЗОМЕТРОВMETHOD OF MANUFACTURING OPTICAL ACTIVE TENSIMETERS
Изобретение относитс к измерительной технике.This invention relates to a measurement technique.
Известны способы изготовлени оптически активных тензометров методом замораживани в напр женном состо нии материала образца цилиндрической формы, в которых дл создани напр жений при «замораживании на цилиндрическую поверхность образца воздействуют внутренним либо внешним гидростатическим давлением, или сжимают отрезанные от цилиндра диски силами, действующими вдоль вертикального диаметра. При этом тензометры получаютс с нелинейным радиальным градиентом полос.There are known methods for producing optically active strain gauges by freezing in a stress state of a sample material of a cylindrical shape, in which to create stresses during a freeze on the cylindrical surface of the sample, internal or external hydrostatic pressure is applied, or the disks cut from the cylinder are applied by forces acting along the vertical diameter . Here, strain gauges are obtained with a non-linear radial gradient of the bands.
Предлагаемый способ отличаетс от известных тем, что напр женное состо ние в процессе «замораживани материала создают вращением цилиндрического образца с посто нной угловой скоростью. Это позвол ет изготовл ть оптически активный тензометр с линейным градиентом полос.The proposed method differs from the known ones in that the stress state in the process of "freezing the material is created by rotating a cylindrical sample with a constant angular velocity. This allows the manufacture of an optically active strain gauge with a linear gradient band.
Описываемый способ осуществл етс следующим образом.The described method is carried out as follows.
Образец цилиндрической формы из оптически активного материала, например из эпоксидной смолы ЭД-6, отвержденной малеиновым ангидридом, закрепл ют в термостате в центрах, привод т центры во вращение с посто нной угловой скоростью и одновременно в термостате повышают температуру со скоростью 5-8°С в час до температуры «за.мораживани (120-128°С), выдерживают при этой температуре 4 час и медленно охлаждают со скоростью, не превышающей 2,5°С в час.A sample of a cylindrical shape of optically active material, for example, epoxy resin ED-6, solidified with maleic anhydride, is fixed in a thermostat at the centers, causes the centers to rotate at a constant angular velocity and simultaneously increase the temperature in the thermostat at a rate of 5-8 ° C per hour up to the freezing temperature (120-128 ° C), kept at this temperature for 4 hours and slowly cooled at a rate not exceeding 2.5 ° C per hour.
После этого цилиндр засверливают так, чтобы отношение внешнего диаметра цилиндра к внутреннему равн лось примерно 4. Из полученного полого цилиндра вырезают кольца посто нной толщины, которые используют в качестве тензометров.After that, the cylinder is drilled so that the ratio of the external diameter of the cylinder to the internal diameter is about 4. From the obtained hollow cylinder, rings of constant thickness are cut out, which are used as strain gauges.
Предмет изобретени Subject invention
Способ изготовлени оптически активных тензометров методом заморансивани в напр женном состо нии материала образца цилиндрической формы, отличающийс тем, что, с целью изготовлени оптически активного тензометра с линейным градиентом полос, напр женное состо ние в процессе «замораживаA method of manufacturing optically active strain gauges by freezing in a stressed state the material of a sample of a cylindrical shape, characterized in that, in order to manufacture an optically active strain gauge with a linear gradient of strips, the stress state in the process of "freezing
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU904799124A Addition SU1705107A2 (en) | 1990-03-06 | 1990-03-06 | Mould for making polymer articles |
Publications (1)
Publication Number | Publication Date |
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SU330336A1 true SU330336A1 (en) |
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