CN205561797U - Device is checked to displacement meter demarcation - strainometer - Google Patents

Device is checked to displacement meter demarcation - strainometer Download PDF

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Publication number
CN205561797U
CN205561797U CN201620385668.7U CN201620385668U CN205561797U CN 205561797 U CN205561797 U CN 205561797U CN 201620385668 U CN201620385668 U CN 201620385668U CN 205561797 U CN205561797 U CN 205561797U
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CN
China
Prior art keywords
strain gauge
displacement meter
hole
digital display
drive link
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN201620385668.7U
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Chinese (zh)
Inventor
徐港
唐广界
赵娟
徐兵
王青
赵鹏
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China Three Gorges University CTGU
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China Three Gorges University CTGU
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Publication date
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Priority to CN201620385668.7U priority Critical patent/CN205561797U/en
Application granted granted Critical
Publication of CN205561797U publication Critical patent/CN205561797U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides is a displacement meter markd the device is checked to the strainometer, including the bottom plate, installs a left side in, right three stand on the bottom plate, wherein in, be equipped with the through -hole on the right stand respectively, two through -hole axial leads are located same straight line, displacement meter or transfer line pass the through -hole on the middle standing pillar, through the first screw rod locking of middle standing pillar upper end, digital display amesdial or digital display dial gauge pass the through -hole on the right stand, through the second screw rod locking of right stand upper end, wherein, displacement meter and digital display amesdial operating condition just to the contact, transfer line and digital display dial gauge are connected with strainometer fixed mounting mechanism in operating condition is just doing the strainometer check to contact and transfer line. The utility model provides a pair of is the displacement meter markd the device is checked to the strainometer, through setting up bottom plate, stand, utilizes through -hole and locking mechanism on each stand, both can carry out sensitivity coefficient to different range displacement meters and mark, can check the bow -shaped strainometer of different gauge lengths again.

Description

A kind of displacement meter calibration-strain gauge capacity checking device
Technical field
This utility model relates to displacement and strain monitoring sensor detection field, refers more particularly to a kind of displacement meter calibration-strain gauge capacity checking device.
Background technology
Civil engineering test or engineering detecting often need to obtain the information such as the displacement of primary structure member, strain to evaluate its mechanical property or stress.At present, a kind of novel displacement and strain monitoring sensor displacement meter, strain gauge are gradually widely used with its advantage such as convenient reading and repeatable utilization.Generally speaking, sensors with auxiliary electrode has carried out every detection and demarcation at the beginning of dispatching from the factory, production unit gives initial sensitivity coefficient, but for a long time, use repeatedly or in the presence of a harsh environment after, Sensor section parts Aging Damage, cause calculating the displacement of gained with original sensitivity coefficient or straining no longer true, and connect notWithIts sensitivity coefficient of instrument is varied from.For obtaining the mechanical informations such as the real displacement of primary structure member, strain, need before further use sensor is re-scaled, record its up-to-date sensitivity coefficient for calculating.So, design is a kind of easy and simple to handle, has the displacement meter of certain accuracy guarantee and strain gauge caliberating device to have realistic meaning for obtaining test and detection data.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of displacement meter calibration-strain gauge capacity checking device, it is convenient to measure displacement meter, the sensitivity coefficient of strain gauge, in order to obtains and detects data really.
For solving above-mentioned technical problem, this utility model be the technical scheme is that
A kind of displacement meter calibration-strain gauge capacity checking device, including base plate, base plate is provided with left column, central post and right column;Wherein, the first through hole, the second through hole it is respectively equipped with on central post and right column, along floor length direction, first through hole and the second through hole axial line are located along the same line, and displacement meter or drive link, through the first through hole on central post, are locked by the first screw rod of central post upper end;Digital display micrometer or digital display dial gauge are through the second through hole on right column, locked by the second screw rod of right column upper end, wherein, displacement meter is with digital display micrometer the most just to contacting, and drive link and digital display dial gauge are the most just to contacting and drive link is connected with strain gauge fixed installation sector doing during strain gauge is checked.
Described strain gauge fixed installation sector includes installing plate, and installing plate one end is locked by the bolt on left column, the other end is arranged in the groove of central post;Described installing plate is provided with chute, and strain gauge is connected with drive link, and two ends are arranged in chute by screw rod and pass through nut check.
Described central post is provided with worm gear, and drive link is got on the bus the tooth engaged with worm gear.
Described drive link includes rod member main body and connects seat.
Described strain is calculated as arch strain gauge, and arch strain gauge one end has connecting hole, the other end has u-shaped groove.
This utility model one displacement meter calibration-strain gauge capacity checking device, has following technical effect that
1), by arranging base plate, left column, central post and right column, utilize the through hole on each column and retaining mechanism, both different range displacement meters can be carried out sensitivity coefficient demarcation, and different gauge length arch strain gauges can be checked again.
2), by using displacement-control mode to carry out arch strain gauge to check, to carry out checking concept than firmly control mode more directly perceived.
3), displacement meter, strain gauge repeat or after life-time service, original paper can deform aging, using this device to demarcate displacement meter, check strain gauge before the test, can know that its working condition is whether good early, to reducing test error, to obtain authentic experiments data significant.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is structural representation of the present utility model (displacement meter calibration).
Fig. 2 is structural representation of the present utility model (strain gauge check).
Fig. 3 is drive link schematic diagram of the present utility model.
Fig. 4 is strain gauge schematic diagram of the present utility model.
Fig. 5 is installing plate schematic diagram of the present utility model.
Fig. 6 is sectional view of the present utility model (displacement meter calibration).
Fig. 7 is sectional view of the present utility model (strain gauge check).
In figure: base plate 1, left column 2, central post 3, right column 4, connect seat 5, the first through hole 6, the second through hole 7, displacement meter 8, drive link 9, the first screw rod 10, digital display micrometer 11, digital display dial gauge 12, second screw rod 13, strain gauge fixed installation sector 14, installing plate 15, bolt 16, groove 17, chute 18, strain gauge 19, worm gear 20, rod member main body 21.
Detailed description of the invention
As shown in Fig. 1-2 or Fig. 6-7, a kind of displacement meter calibration-strain gauge capacity checking device, including base plate 1, base plate 1 is provided with left column 2, central post 3 and right column 4;Wherein, first through hole the 6, second through hole 7 it is respectively equipped with on central post 3 and right column 4, along base plate 1 length direction, first through hole 6 and the second through hole 7 axial line are located along the same line, displacement meter 8 or drive link 9, through the first through hole 6 on central post 3, are locked by the first screw rod 10 of central post 3 upper end;Digital display micrometer 11 or digital display dial gauge 12 are through the second through hole 7 on right column 4, locked by the second screw rod 13 of right column 4 upper end, wherein, displacement meter 8 is with digital display micrometer 11 the most just to contacting, and drive link 9 and digital display dial gauge 12 are the most just to contacting and drive link 9 is connected with strain gauge fixed installation sector 14 doing during strain gauge is checked.
As in figure 2 it is shown, described strain gauge fixed installation sector 14 includes installing plate 15, installing plate 15 one end is locked by the bolt 16 on left column 2, the other end is arranged in the groove 17 of central post 3;In described installing plate 15 is provided with chute 18, and strain gauge 19 is connected with drive link 9, and two ends are arranged on chute 18 by screw rod and pass through nut check.
As in figure 2 it is shown, described central post 3 is provided with worm gear 20, drive link 9 is got on the bus the tooth engaged with worm gear 20.Manually rotation of worm gear, can make drive link carry out transmission, thus control the moving direction of drive link.
As it is shown on figure 3, described drive link 9 includes rod member main body 21 and connects seat 5.
As shown in Figure 4, described strain gauge 19 is arch strain gauge, and arch strain gauge one end has connecting hole, the other end has u-shaped groove.
Displacement meter calibration process:
1), location is installed, the bar of measuring of displacement meter 8 is passed the first through hole 6 of central post 3, tighten top the first screw rod 10 fixed displacement meter 8, the bar of measuring of digital display micrometer 11 is passed the second through hole 7 of right column 4, tighten top the second screw rod 13 and fix digital display micrometer 11, the bar of measuring making digital display micrometer 11 contacts with the measurement bar of displacement meter 8, then the wire of displacement meter 8 is connected on Acquisition Instrument, Acquisition Instrument, digital display micrometer 11 reading is reset.
2), formally demarcate, gradually rotate the measurement bar of digital display micrometer 11, displacement is made to reach preset displacement value, the strain under this displacement is gathered with Acquisition Instrument, a rating test is terminated after reaching displacement setting value, it is fitted processing to preset displacement values at different levels and corresponding strain value, draws the sensitivity coefficient of displacement meter 8.
Strain gauge check process:
1), location is installed, installing plate 15 one end is stuck in the groove 17 of central post 3, other end bolt 16 is fixed on left column 2 end face, the rod member main body 21 of drive link 9 is passed the first through hole 6 of central post 3, then drive link 9 and strain gauge 19 is fixed by bolts on installing plate 15;Column position according to drive link 9, select suitable circular hole on base plate 1, guarantee strain gauge no matter under tension or pressurized limit state cylindrical end pointer with digital display dial gauge 12 all the time be in close contact, right column 4 is fixed on base plate 1, and by digital display dial gauge 12 use, the second screw rod 13 is fixed on right column 4;Strain gauge 19 is connected on Acquisition Instrument, Acquisition Instrument and digital display dial gauge 6 reading are reset.
2), formally check, when carrying out pulling force or pressure check, along making strain gauge 19 directional trim tension or in compression worm gear 20, strain gauge 19 is made to move to preset shift values at different levels, gather the strain value under displacement at different levels, the theoretical strain value ratio of strain gauge gauge length (actual displacement with) is carried out data matching with the strain value collected, just can get the sensitivity coefficient of strain gauge 19.

Claims (5)

1. displacement meter calibration-strain gauge capacity checking device, it is characterised in that: include base plate (1), base plate (1) is provided with left column (2), central post (3) and right column (4);Wherein, on central post (3) and right column (4), it is respectively equipped with the first through hole (6), the second through hole (7) along base plate (1) length direction, first through hole (6) and the second through hole (7) axial line are located along the same line, displacement meter (8) or drive link (9), through the first through hole (6) on central post (3), are locked by first screw rod (10) of central post (3) upper end;Digital display micrometer (11) or digital display dial gauge (12) are through the second through hole (7) on right column (4), locked by second screw rod (13) of right column (4) upper end, wherein, displacement meter (8) is with digital display micrometer (11) the most just to contacting, and drive link (9) and digital display dial gauge (12) are the most just to contacting and drive link (9) is connected with strain gauge fixed installation sector (14) doing during strain gauge is checked.
A kind of displacement meter calibration-strain gauge capacity checking device the most according to claim 1, it is characterized in that: described strain gauge fixed installation sector (14) includes installing plate (15), installing plate (15) one end is locked by the bolt (16) on left column (2), the other end is arranged in the groove (17) of central post (3);Described installing plate (15) is provided with chute (18), and strain gauge (19) is connected with drive link (9), and two ends are arranged in chute (18) by screw rod and pass through nut check.
A kind of displacement meter calibration-strain gauge capacity checking device the most according to claim 1, it is characterised in that: described central post (3) is provided with worm gear (20), and drive link (9) is got on the bus the tooth engaged with worm gear (20).
A kind of displacement meter calibration-strain gauge capacity checking device the most according to claim 1, it is characterised in that: described drive link (9) includes rod member main body (21) and connects seat (5).
A kind of displacement meter calibration-strain gauge capacity checking device the most according to claim 2, it is characterised in that: described strain gauge (19) is arch strain gauge, and arch strain gauge one end has connecting hole, the other end has u-shaped groove.
CN201620385668.7U 2016-05-03 2016-05-03 Device is checked to displacement meter demarcation - strainometer Expired - Fee Related CN205561797U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620385668.7U CN205561797U (en) 2016-05-03 2016-05-03 Device is checked to displacement meter demarcation - strainometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620385668.7U CN205561797U (en) 2016-05-03 2016-05-03 Device is checked to displacement meter demarcation - strainometer

Publications (1)

Publication Number Publication Date
CN205561797U true CN205561797U (en) 2016-09-07

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Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109975109A (en) * 2019-04-25 2019-07-05 华北理工大学 A kind of the test support of sleeve circumferential direction and displacement meter arrangement apparatus and method
CN110672059A (en) * 2019-10-14 2020-01-10 中国水利水电科学研究院 Calibrating device and calibrating method for slide micrometer
CN111578892A (en) * 2020-04-13 2020-08-25 湖南省计量检测研究院 Strain gauge calibration device and method based on hydraulic element driving

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109975109A (en) * 2019-04-25 2019-07-05 华北理工大学 A kind of the test support of sleeve circumferential direction and displacement meter arrangement apparatus and method
CN109975109B (en) * 2019-04-25 2021-07-13 华北理工大学 Device and method for circumferential support of sleeve and arrangement of displacement meter for test
CN110672059A (en) * 2019-10-14 2020-01-10 中国水利水电科学研究院 Calibrating device and calibrating method for slide micrometer
CN111578892A (en) * 2020-04-13 2020-08-25 湖南省计量检测研究院 Strain gauge calibration device and method based on hydraulic element driving

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160907

Termination date: 20180503