Linear displacement measuring device of distributed optical fiber sensor

Abstract

The utility model relates to the field of optical fiber sensors, in particular to a linear displacement measuring device of a distributed optical fiber sensor, which comprises a measuring machine body, an assembly body, a rectangular fixed column, a first moving seat, a laser sensing measurer, a second moving seat, a dial indicator, a rotating motor, a screw rod, a fixed plate, a console and a motor cabin, the right side of the measuring machine body is provided with the fixed plate; the left side of the measuring machine body is provided with the assembly body; the upper side of the assembly body is provided with the console; the front sides of the assembly body and the fixed plate are provided with the rectangular fixed column; a dial indicator is installed on the front side of the second moving seat, a screw is installed in the second moving seat, a motor bin is arranged in the assembly body, and a rotating motor is installed in the motor bin.

Description

Technical Field

[0001] The utility model relates to the field of optical fiber sensors, in particular to a linear displacement measuring device of a distributed optical fiber sensor. Background Art

[0002] Distributed fiber optic sensing is a sensing system that uses optical fiber as both a sensing element and a signal transmission medium. The principle of a distributed fiber optic sensing system is to use optical fiber as both a sensing element and a signal transmission medium, and to employ advanced OTDR technology to detect temperature and strain changes at different locations along the fiber, achieving truly distributed measurement. A Chinese patent discloses a linear displacement measurement device for a distributed fiber optic sensor (authorization announcement number CN 217210748). U), this patented technology can rotate the hand lever through the provided measuring mechanism, and drive the screw rod to rotate through the hand lever, and the two ends of the guide rod are fixedly connected to the sliding groove, the guide rod passes through the ball slider, and the guide rod is slidably connected to the ball slider, so that the ball slider moves stably, and then fixedly connected to the ball slider through the connecting block, thereby driving the connecting block and the dial indicator to move linearly, and the side head of the dial indicator contacts the optical fiber, and the linear displacement measurement is performed during the movement, ensuring that the measuring device can perform stable horizontal sliding, improving the measurement stability, and ensuring the accuracy of the measurement results. By setting the two ends of the guide rail at the fixed ends of the optical fiber measurement position, the sliding clamp ring is pulled upward to allow the optical fiber to enter the sliding clamp ring and the fixed clamp The two ends of the reset spring are fixedly connected to the inner surface of the sliding sleeve and the bottom surface of the anti-slip ring respectively, and the anti-slip ring is slidably connected to the sliding sleeve, thereby driving the sliding clamp ring to reset, so that the sliding clamp ring and the fixed clamp ring can fix the optical fiber, and then the other ends of the sliding clamp ring and the fixed clamp ring are threadedly connected to the fixing bolts, so that the sliding clamp ring and the other ends of the fixed clamp ring are fixed. In this way, the measurement position can be limited and fixed, which reduces the operating difficulty of the measurement personnel and reduces the measurement workload. However, this design requires the user to continuously rotate the hand lever, which increases the user's workload. The measurement mechanism of this design is single, and only a dial indicator is installed for measurement. The measured data has no comparative experiment and is prone to errors. Therefore, those skilled in the art provide a linear displacement measurement device for a distributed optical fiber sensor to solve the problems raised in the above background technology. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a linear displacement measuring device of a distributed optical fiber sensor, including a measuring machine body, an assembly, a rectangular fixed column, a No. 1 movable seat, a laser sensor measuring device, a No. 2 movable seat, a dial indicator, a rotating motor, a screw, a fixed plate, a console and a motor compartment. The fixed plate is installed on the right side of the measuring machine body, the assembly is installed on the left side of the measuring machine body, the console is installed on the upper side of the assembly, the rectangular fixed column is installed on the front side of the assembly and the fixed plate, the No. 1 movable seat is installed on the upper side of the measuring machine body, the laser sensor measuring device is installed on the upper side of the No. 1 movable seat, the No. 2 movable seat is installed in the measuring machine body, the dial indicator is installed in front of the No. 2 movable seat, the screw is installed in the No. 2 movable seat, a motor compartment is provided in the assembly body, and the rotating motor is installed in the motor compartment.

[0004] Preferably: a rectangular telescopic slot is provided in the rectangular fixed column, a rectangular telescopic rod is installed in the rectangular telescopic slot, a No. 1 fixing ear plate is installed on the side end of the rectangular telescopic rod, a No. 1 fixing clamping ring is installed at the upper right end of the No. 1 fixing ear plate, a No. 2 fixing ear plate is installed on both sides of the No. 1 fixing clamping ring, a No. 2 fixing ear plate is installed at the lower right end of the No. 1 fixing ear plate, a No. 3 fixing ear plate is installed on both sides of the No. 2 fixing clamping ring, and the rectangular telescopic rod, the No. 1 fixing clamping ring and the No. 2 fixing clamping ring are fixed and installed by nuts;

[0005] Preferably, a touch screen is provided on the console, a bearing is installed on the right side of the rotating motor, a machine shaft is installed in the bearing, and a cross clamping shaft is installed on the right side of the machine shaft;

[0006] Preferably: a No. 1 slide rail is provided at the upper end of the inner side of the measuring machine body, a No. 2 slide rail is provided at the middle position of the inner side of the measuring machine body, a slide plate is installed in the No. 1 slide rail, the slide plate is installed on the lower side of the No. 1 moving seat, a fixed circular groove is installed on the upper side of the No. 1 moving seat, a fixed cylinder is installed in the fixed circular groove, a laser sensor measuring device is installed on the upper side of the fixed cylinder, a slider is installed in the No. 2 slide rail, the slider is installed on the left side of the No. 2 moving seat, a laser sensor plate is installed on the upper side of the No. 2 moving seat, and a fixed block is installed on the right side of the No. 2 moving seat;

[0007] Preferably, a threaded hole is provided in the slider, a screw is installed in the threaded hole, a cross slot is installed on the left side of the screw, a cross shaft is installed in the cross slot, a dial indicator is installed on the fixed block, and a fiber optic probe is installed in front of the dial indicator.

[0008] The technical effects and advantages of this utility model are:

[0009] 1. Install the bearing on the right side of the rotating motor, install the machine shaft inside the bearing, install the cross clamping shaft on the right side of the machine shaft, install the screw in the threaded hole, install the cross clamping slot on the left side of the screw, and install the cross clamping shaft in the cross clamping slot. By installing the rotating motor, the rotation parameters can be controlled through the console to achieve automatic operation and save manpower;

[0010] 2. A laser sensor board is installed on the upper side of the No. 2 moving base, a fixed block is installed on the right side of the No. 2 moving base, a dial indicator is installed on the fixed block, and a fiber optic probe is installed in front of the dial indicator. The laser sensor measurer moves along with the laser sensor board to measure, and the generated data is displayed on the touch screen. At the same time, the dial of the dial indicator also records the data, and the data is compared to make the data record more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 1 is a schematic structural diagram of a linear displacement measurement device of a distributed optical fiber sensor provided in an embodiment of the present application;

[0012] Figure 2 This is a schematic diagram of the exploded structure of a linear displacement measuring device of a distributed optical fiber sensor provided in an embodiment of the present application;

[0013] Figure 3 This is a schematic diagram of a local explosion structure in a linear displacement measurement device of a distributed optical fiber sensor provided in an embodiment of the present application. Figure 1 ;

[0014] Figure 4 This is a schematic diagram of a local explosion structure in a linear displacement measurement device of a distributed optical fiber sensor provided in an embodiment of the present application. Figure 2 ;

[0015] Figure 5 This is a schematic diagram of a local explosion structure in a linear displacement measurement device of a distributed optical fiber sensor provided in an embodiment of the present application. Figure 3 .

[0016] Figure: 1. Measuring machine body; 2. Assembly; 3. Rectangular fixed column; 4. No. 1 movable base; 5. Laser sensor measuring device; 6. No. 2 movable base; 7. Dial indicator; 8. Rotating motor; 9. Screw; 101. No. 1 slide rail; 102. No. 2 slide rail; 201. Fixed plate; 202. Control console; 203. Touch screen; 204. Motor compartment; 301. Rectangular telescopic slot; 302. Rectangular telescopic rod; 303. No. 1 fixed ear plate ; 304, No. 1 fixing clamp ring; 305, No. 2 fixing ear plate; 306, No. 2 fixing clamp ring; 307, No. 3 fixing ear plate; 308, nut; 401, slide plate; 402, fixed circular groove; 501, fixed cylinder; 601, slider; 602, threaded hole; 603, laser sensor board; 604, fixed clamp block; 701, fiber optic probe; 801, machine shaft; 802, bearing; 803, cross clamp shaft; 901, cross clamp groove. DETAILED DESCRIPTION

[0017] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0018] Example

[0019] See also Figures 1 to 5 In this embodiment, a linear displacement measuring device of a distributed optical fiber sensor is provided, including a measuring machine body 1, an assembly body 2, a rectangular fixed column 3, a No. 1 movable seat 4, a laser sensor measuring device 5, a No. 2 movable seat 6, a dial indicator 7, a rotating motor 8, a screw 9, a fixed plate 201, a console 202 and a motor compartment 204. The fixed plate 201 is installed on the right side of the measuring machine body 1, the assembly body 2 is installed on the left side of the measuring machine body 1, the console 202 is installed on the upper side of the assembly body 2, the rectangular fixed column 3 is installed in front of the assembly body 2 and the fixed plate 201, the No. 1 movable seat 4 is installed on the upper side of the measuring machine body 1, the laser sensor measuring device 5 is installed on the upper side of the No. 1 movable seat 4, the No. 2 movable seat 6 is installed in the measuring machine body 1, the dial indicator 7 is installed in front of the No. 2 movable seat 6, the screw 9 is installed in the No. 2 movable seat 6, a motor compartment 204 is provided in the assembly body 2, and the rotating motor 8 is installed in the motor compartment 204;

[0020] Specifically, a touch screen 203 is provided on the console 202, a bearing 802 is installed on the right side of the rotating motor 8, a shaft 801 is installed in the bearing 802, and a cross-clamp shaft 803 is installed on the right side of the shaft 801;

[0021] A rectangular telescopic slot 301 is provided in the rectangular fixed column 3, a rectangular telescopic rod 302 is installed in the rectangular telescopic slot 301, a No. 1 fixing ear plate 303 is installed on the side end of the rectangular telescopic rod 302, a No. 1 fixing clamping ring 304 is installed at the upper right end of the No. 1 fixing ear plate 303, a No. 2 fixing ear plate 305 is installed on both sides of the No. 1 fixing clamping ring 304, a No. 2 fixing ear plate 306 is installed at the lower right end of the No. 1 fixing ear plate 303, a No. 3 fixing ear plate 307 is installed on both sides of the No. 2 fixing clamping ring 306, and the rectangular telescopic rod 302, the No. 1 fixing clamping ring 304 and the No. 2 fixing clamping ring 306 are fixed by nuts 308;

[0022] A No. 1 slide rail 101 is provided at the upper end of the inner side of the measuring machine body 1, and a No. 2 slide rail 102 is provided at the middle position of the inner side of the measuring machine body 1. A slide plate 401 is installed in the No. 1 slide rail 101, and the slide plate 401 is installed on the lower side of the No. 1 movable seat 4. A fixed circular groove 402 is installed on the upper side of the No. 1 movable seat 4, and a fixed cylinder 501 is installed in the fixed circular groove 402. A laser sensor measuring device 5 is installed on the upper side of the fixed cylinder 501. A slider 601 is installed in the No. 2 slide rail 102, and the slider 601 is installed on the left side of the No. 2 movable seat 6. A laser sensor plate 603 is installed on the upper side of the No. 2 movable seat 6, and a fixed block 604 is installed on the right side of the No. 2 movable seat 6. A threaded hole 602 is provided in the slider 601, and a screw 9 is installed in the threaded hole 602. A cross slot 901 is installed on the left side of the screw 9, and a cross shaft 803 is installed in the cross slot 901. A dial indicator 7 is installed on the fixed block 604, and a fiber optic probe 701 is installed on the front side of the dial indicator 7.

[0023] The working principle of this utility model is:

[0024] In a linear displacement measuring device using a distributed optical fiber sensor, the optical fiber to be measured can be fixed by the No. 1 fixing clamp ring 304 and the No. 2 fixing clamp ring 306, the No. 1 movable base 4 and the No. 2 movable base 6 are reset to the leftmost side of the measuring machine body 1, and the measurement is started through the touch screen 203 on the touch control console 202. The motor 8 rotates, driving the screw 9 to rotate. At this time, the No. 2 movable base 6 moves to the right, the optical fiber probe 701 starts measuring, and the laser sensor measuring device 5 follows the laser sensing plate 603 to move and measure. The generated data is displayed on the touch screen 203. At the same time, the dial of the dial indicator 7 also records the data. The data is compared to make the data recording more accurate.

[0025] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making any creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A linear displacement measuring device of a distributed optical fiber sensor, characterized in that: The measuring machine comprises a measuring machine body (1), an assembly body (2), a rectangular fixed column (3), a No. 1 movable seat (4), a laser sensor measuring device (5), a No. 2 movable seat (6), a dial indicator (7), a rotating motor (8), a screw (9), a fixed plate (201), a control console (202) and a motor compartment (204). The fixing plate (201) is installed on the right side of the measuring machine body (1), the assembly body (2) is installed on the left side of the measuring machine body (1), and the control console (202) is installed on the upper side of the assembly body (2). A rectangular fixed column (3) is installed on the front side of the ligand (2) and the fixed plate (201), a No. 1 movable seat (4) is installed on the upper side of the measuring machine body (1), a laser sensor measuring device (5) is installed on the upper side of the No. 1 movable seat (4), a No. 2 movable seat (6) is installed in the measuring machine body (1), a dial indicator (7) is installed on the front side of the No. 2 movable seat (6), a screw (9) is installed in the No. 2 movable seat (6), a motor compartment (204) is provided in the assembly body (2), and a rotating motor (8) is installed in the motor compartment (204).

2. The linear displacement measuring device of a distributed optical fiber sensor according to claim 1, characterized in that: The console (202) is provided with a touch screen (203).

3. The linear displacement measuring device of a distributed optical fiber sensor according to claim 1, characterized in that: The rectangular fixed column (3) is provided with a rectangular telescopic groove (301), a rectangular telescopic rod (302) is installed in the rectangular telescopic groove (301), a first fixing ear plate (303) is installed at the side end of the rectangular telescopic rod (302), a first fixing clamping ring (304) is installed at the upper right end of the first fixing ear plate (303), a second fixing ear plate (305) is installed on both sides of the first fixing clamping ring (304), a second fixing clamping ring (306) is installed at the lower right end of the first fixing ear plate (303), and a third fixing ear plate (307) is installed on both sides of the second fixing clamping ring (306), and the rectangular telescopic rod (302), the first fixing clamping ring (304) and the second fixing clamping ring (306) are fixedly installed by nuts (308).

4. The linear displacement measuring device of a distributed optical fiber sensor according to claim 1, characterized in that: A bearing (802) is installed on the right side of the rotating motor (8), a machine shaft (801) is installed in the bearing (802), and a cross clamping shaft (803) is installed on the right side of the machine shaft (801).

5. The linear displacement measuring device of a distributed optical fiber sensor according to claim 4, characterized in that: A first slide rail (101) is provided at the upper end of the inner side of the measuring machine body (1), and a second slide rail (102) is provided at the middle position of the inner side of the measuring machine body (1).

6. The linear displacement measuring device of a distributed optical fiber sensor according to claim 5, characterized in that: A slide plate (401) is installed in the first slide rail (101), the slide plate (401) is installed on the lower side of the first movable seat (4), a fixed circular groove (402) is installed on the upper side of the first movable seat (4), a fixed cylinder (501) is installed in the fixed circular groove (402), and a laser sensor measuring device (5) is installed on the upper side of the fixed cylinder (501).

7. The linear displacement measuring device of a distributed optical fiber sensor according to claim 6, characterized in that: A slider (601) is installed in the second slide rail (102), the slider (601) is installed on the left side of the second moving seat (6), a laser sensor plate (603) is installed on the upper side of the second moving seat (6), and a fixed block (604) is installed on the right side of the second moving seat (6).

8. The linear displacement measuring device of a distributed optical fiber sensor according to claim 7, characterized in that: A threaded hole (602) is provided in the slider (601), a screw rod (9) is installed in the threaded hole (602), a cross clamping groove (901) is installed on the left side of the screw rod (9), and a cross clamping shaft (803) is installed in the cross clamping groove (901).

9. The linear displacement measuring device of a distributed optical fiber sensor according to claim 7, characterized in that: A dial indicator (7) is installed on the fixed block (604), and an optical fiber probe (701) is installed on the front side of the dial indicator (7).

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