Calibration device and equipment for optical fiber strain tester
An optical fiber strain and calibration device technology, applied in the field of metrology, can solve the problems of third-party organizations not widely conducting business, lack of optical fiber metrology standard devices, and inconvenient metering service work, etc., to improve user experience, simple structure, and improved user experience. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0030] see figure 1 , is a schematic diagram of the connection structure between the calibration device 1 and the optical fiber strain tester 2 provided in Embodiment 1 of the present invention.
[0031] In this embodiment, the calibration device 1 includes a strain control module 12, and the strain control module 12 includes a temperature controller 121 and a detachable optical fiber disk 122, and the optical fiber disk 122 is wound with a first length Standard optical fiber; the strain control module 12 is used to control the temperature change of the standard optical fiber with a first length wound in the optical fiber reel 122 through the temperature controller 121 to change the standard optical fiber with a first length of strain. The beneficial effects of making the calibrating device small in volume, simple in structure and convenient in use can be achieved.
[0032] Specifically, when the measurement function of the optical fiber strain tester for strain parameters i...
Embodiment 2
[0036] Such as figure 2 As shown, it is a schematic diagram of the connection structure between an optical fiber strain tester 2 and a calibration device 1 provided in Embodiment 2 of the present invention. The calibration device 1 of the optical fiber strain tester in this embodiment is further improved on the basis of Embodiment 1. Improvement, the improvement is that: the calibration device also includes a fiber grating with a second length, and the fiber grating with the second length is a fiber grating with the same dispersion characteristics as a standard optical fiber with a third length; wherein, the The second length is not greater than 20cm, and the third length is not less than 10km.
[0037] It should be noted that the second length in the fiber Bragg grating 11 having the second length refers to the length of the fiber Bragg grating as a whole device.
[0038] Specifically, when the calibration device 1 of this embodiment is used to calibrate the test function o...
Embodiment 3
[0041] This embodiment has been further improved on the basis of Embodiment 1, the improvements are as follows: Figure 4 As shown, the calibration device 1 further includes a fiber coupler 13 and a first fiber ring 14, and the first fiber ring 14 and the fiber coupler 13 are connected to form a closed loop through a standard fiber. The optical fiber strain tester 2 includes a first optical interface 21 and a second optical interface 22, and the optical fiber coupler 13 includes a first input end 131, a second input end 132, a first output end 133 and a second output end 134 , the first input end 131 is connected to the first optical interface 21 through a standard optical fiber, and the first output end 131, the fiber grating 11 and the second optical interface 22 are serially connected through a standard optical fiber; The second input end 132 is connected to one end of the first optical fiber ring 14 through a standard optical fiber, and the second output end 134 is connect...
PUM
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More