SU717334A1 - String-type strain gauge tensioning device - Google Patents
String-type strain gauge tensioning device Download PDFInfo
- Publication number
- SU717334A1 SU717334A1 SU782593294A SU2593294A SU717334A1 SU 717334 A1 SU717334 A1 SU 717334A1 SU 782593294 A SU782593294 A SU 782593294A SU 2593294 A SU2593294 A SU 2593294A SU 717334 A1 SU717334 A1 SU 717334A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- trimmer
- string
- frame
- bolt
- strain gauge
- Prior art date
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Description
Изобретение относз1тс к горному делу, а именно дл измерени дефор маций обнаженных поверхностей йг1ссива горных пород, и может использбватьс дл измерени деформаций подрабатываемых зданий и сооружений.The invention relates to mining, namely, to measure the deformations of the exposed surfaces of rock formations, and can be used to measure the deformations of undermined buildings and structures.
Известны струнные.тензометры дл измерени деформаций обнаженных по верхностей горных пород, сущность которых заключаетс в том, что стальна проволока нат нута и жестко закреплена между двум забетонированными в массиве независи1« ми реперами, которые одновременно вл ютс и. нат жными устройствами. Деформаци массива вызывает укорочение или удлинение проволоки, а измерени этих изменений производ тс с помощью специальной тензометрической приставки и генератора частотомера 1.String strain gauges are known for measuring the deformations of exposed surfaces of rocks, the essence of which lies in the fact that the steel wire is tensioned and rigidly secured between two independent rails in the massif, which are simultaneously and. tensioning devices. The deformation of the array causes the wire to be shortened or lengthened, and these changes are measured using a special strain gauge attachment and frequency generator 1.
Известно нат жное устройство тензометра , имеющее корпус с репером, подстроечный винт и гайки 2.A tension device of the strain gauge is known, having a frame with a frame, a trimmer screw and nuts 2.
Недостатком указанных устройств вл етс то, что они обладают высокой чувствительностью к внешним .си лОвым воздействи м, в результате чегоThe disadvantage of these devices is that they are highly sensitive to external influences, as a result of which
снижаетс точность измерений и на- дежность в работе тензометров при ведении взрывных работ в районе их установки.measurement accuracy and reliability of strain gauges in blasting operations in the area of their installation is reduced.
Цель изобретени - повы ление точности измерений и надежности в работе тензометра при ведении взрывных работ,.The purpose of the invention is to increase the measurement accuracy and reliability in the work of the strain gauge in blasting operations.
Это достигаетс тем, что устрой-, ство снабжено возвратной пружиной, установленной между подстроечным болтом и корпусом репера, и фиксирующей шайбой с. микрометрическими винтами, дл установки которой на подстроечном болте выполнены калиброванные прорези, а в корпусе репера - паз.This is achieved by the fact that the device is equipped with a return spring installed between the trimmer bolt and the frame of the frame, and the locking washer c. micrometer screws, for installation of which calibrated slots are made on the trimmer bolt, and a groove in the frame of the reference frame.
На фиг. 1 изображено нат жное устройство струнного тензометра, общий вид; на фиг, 2 - разрез А-А на фиг, 1.. . . .FIG. 1 shows the tension device of a string strain gauge, general view; FIG. 2 is a section A-A in FIG. 1 ... . .
Нат жное устройство состоит из забетонированного в массиве репера 1 с жестко закрепленным на нем корпусом 2, в. котором выполнено осевое отверстие , в него вставлен лодстроечный. олт 3 с гайкой 4,The tension device consists of a frame 1 concreted in an array with a body 2 rigidly fixed on it, c. which is made axial hole, inserted into it podstroichnoe. olt 3 with nut 4,
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782593294A SU717334A1 (en) | 1978-03-06 | 1978-03-06 | String-type strain gauge tensioning device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782593294A SU717334A1 (en) | 1978-03-06 | 1978-03-06 | String-type strain gauge tensioning device |
Publications (1)
Publication Number | Publication Date |
---|---|
SU717334A1 true SU717334A1 (en) | 1980-02-25 |
Family
ID=20754751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782593294A SU717334A1 (en) | 1978-03-06 | 1978-03-06 | String-type strain gauge tensioning device |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU717334A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4914962A (en) * | 1988-09-28 | 1990-04-10 | The Slope Indicator Co. | Vibrating strip transducer |
-
1978
- 1978-03-06 SU SU782593294A patent/SU717334A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4914962A (en) * | 1988-09-28 | 1990-04-10 | The Slope Indicator Co. | Vibrating strip transducer |
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