CN211234312U

CN211234312U - Verification and check auxiliary device of strain sensor

Info

Publication number: CN211234312U
Application number: CN202020103772.9U
Authority: CN
Inventors: 张莺
Original assignee: Liaoning Vocational College of Ecological Engineering
Current assignee: Liaoning Vocational College of Ecological Engineering
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-08-11
Anticipated expiration: 2030-01-17

Abstract

The utility model provides an auxiliary device is checked in examination of strain sensor, belongs to the monitoring and checks the field with strain sensor examination, the device includes the exposed core, examines and determine section, spacing ring, the solid fixed ring of sensor, the exposed core is fixed in the both ends of examining and determining the section, the exposed core is in on the same straight line with the axis of examining and determining the section, it is greater than the exposed core to examine and determine the section diameter, the middle part both sides of examining and determining the section are cup jointed and are fixed with the spacing ring, examine and determine that the section outside has cup jointed the solid fixed ring of sensor in the spacing ring both sides, be fixed with the sensor between. The utility model discloses the device can carry out examination fast to the measuring degree of accuracy of strain sensor and check.

Description

Verification and check auxiliary device of strain sensor

Technical Field

The utility model belongs to the field is checked with strain sensor examination to the monitoring, in particular to auxiliary device is checked in strain sensor's examination.

Background

Since the twenty-first century, the investment of infrastructure construction is increased in China, and a plurality of large engineering structures such as high-rise buildings, large-span bridges, large water conservancy and power facilities and the like are continuously emerged. These large engineering structures are complex to stress and play an important role in the economic activity of the area. Therefore, it is important to monitor the service status of these large engineering structures. Under such a background, a new sensor represented by a vibrating wire sensor or an optical fiber sensor is widely used in the field of monitoring in civil engineering. However, many manufacturers of such sensors currently produce sensors of varying quality. The sensor is required to be checked before use. The utility model provides an auxiliary device is checked in examination of strain sensor can play the additional action at the examination check in-process of sensor, improves work efficiency greatly.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a strain sensor's examination is checked auxiliary device, the device can examine and determine the check to vibrating wire formula strainometer, optic fibre formula strainometer.

The utility model adopts the following technical scheme:

the utility model provides an auxiliary device is checked in examination of strain sensor, the device includes the solid fixed ring of exposed core, examination section, spacing ring, sensor, the exposed core is fixed in the both ends of examination section, the exposed core is in on the same straight line with the axis of examination section, examination section diameter is greater than the exposed core, the middle part both sides of examination section are cup jointed and are fixed with the spacing ring, examination section outside has cup jointed the solid fixed ring of sensor in the spacing ring both sides, be fixed with the sensor between the solid fixed ring of two sensors.

Furthermore, the verification section is evenly provided with verification section screw holes, the limiting ring is evenly provided with limiting ring screw holes, the verification section screw holes are matched with the limiting ring screw holes, and the limiting ring is fixedly connected with the verification section through bolts.

Further, the inner diameters of the clamping end and the sensor fixing ring are the same as the diameter of the verification section.

The utility model discloses owing to adopted above technical scheme, the beneficial effect who has is: simple structure, easy processing and convenient use. Through the utility model provides a device can assist examination and check to the measuring degree of accuracy of strain sensor.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the components of the present invention;

fig. 3 is a schematic diagram for verifying and checking the strain sensor.

In the figure: 1. the sensor comprises a clamping end, 2, a verification section, 3, a limiting ring, 4, a sensor fixing ring, 5, a verification section screw hole, 6, a limiting ring screw hole, 7, a bolt, 8 and a sensor.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

The utility model provides an auxiliary device is checked in examination of strain sensor, includes exposed core 1, examination section 2, spacing ring 3 and the solid fixed ring 4 of sensor.

The clamping ends 1 are cylinders, the number of the clamping ends is one, the verification sections 2 are cylinders, the number of the verification sections is one, and the diameter of each verification section 2 is larger than that of each clamping end 1;

the clamping end 1 is embedded in the centers of two end faces of the detection section 2, and the axis of the clamping end 1 is ensured to be consistent with the axis of the detection section 2;

the surface of the verification section 2 is provided with a plurality of screw holes 5;

the number of the limiting rings 3 is one pair, and the inner diameter of the limiting rings is the same as that of the detection section 2. The surface of the limiting ring 3 is provided with screw holes 6, and the position, the number and the specification of the screw holes are consistent with those of the screw holes 5 of the verification section;

the number of the sensor fixing rings 4 is one pair, and the inner diameter of the sensor fixing rings is the same as that of the detection section 2.

Example 1

As shown in FIGS. 1-3, the utility model relates to an auxiliary device is checked in examination of strain sensor, including exposed core 1, examination section 2, spacing ring 3 and the solid fixed ring 4 of sensor. A pair of limit rings 3 are sleeved at proper positions at two ends of the verification section 2, the screw holes 5 of the verification section are aligned with the screw holes 6 of the limit rings 2, and the limit rings are fixed by bolts 7. Then, a pair of sensor fixing rings 4 are sleeved into the detection section 2 from two ends, and the sensor 8 is welded on the surface of the sensor fixing ring. The whole device is arranged on a tensile testing machine, and the verification and check of the strain sensor can be carried out in an auxiliary manner.

The utility model discloses can be used to the examination of vibrating wire formula or optic fibre formula strain sensor and check. The device comprises a clamping end, a verification section, a limiting ring and a sensor fixing ring. When in use, a pair of limit rings are sleeved at two ends of the detection section and fixed by bolts. Then, the pair of sensor fixing rings are sleeved into the verification section from two ends and abut against one side of the limiting ring. And welding the sensor on the surface of the sensor fixing ring, and connecting the sensor with a data acquisition system. And adhering the strain gauge on the surface of the verification section, and connecting the strain gauge with a strain acquisition instrument. The device is arranged on the testing machine, the auxiliary device is loaded, the reading of the strain gauge and the reading of the sensor are recorded, and the comparison is carried out, so that the auxiliary checking of the sensor is realized. The utility model discloses simple structure, easily processing, convenient to use. Through the utility model provides a device can carry out examination and check fast to the measuring degree of accuracy of strain sensor.

Claims

1. The utility model provides an auxiliary device is checked in examination of strain sensor which characterized in that: the device includes holder (1), examination section (2), spacing ring (3), the solid fixed ring of sensor (4), sensor (8), both ends of examination section (2) are fixed in holder (1), holder (1) is in on the same straight line with the axis of examining and determine section (2), it is greater than holder (1) to examine and determine section (2) diameter, the middle part both sides of examining and determining section (2) are cup jointed and are fixed with spacing ring (3), examine and determine section (2) outside has cup jointed the solid fixed ring of sensor (4) in spacing ring (3) both sides, be fixed with sensor (8) between the solid fixed ring of two sensors (4).

2. The verification and check auxiliary device for the strain sensor as claimed in claim 1, wherein: examination section screw (5) have evenly been seted up on examination section (2), spacing ring screw (6) have evenly been seted up on spacing ring (3), examination section screw (5) and spacing ring screw (6) phase-match, spacing ring (3) link to each other with examination section (2) through bolt (7) are fixed.

3. The verification and check auxiliary device for the strain sensor as claimed in claim 1, wherein: the inner diameters of the clamping end (1) and the sensor fixing ring (4) are the same as the diameter of the verification section (2).