CN-224229162-U - Damping device for distributed acoustic wave sensor

Abstract

The utility model relates to the technical field of sensor damping devices, in particular to a damping device for a distributed acoustic wave sensor. According to the utility model, through designing the damping frame, the damping cavity in the damping frame and the elastic damping piece arranged on the cavity wall of the damping cavity, a stable installation environment capable of eliminating vibration is provided for the distributed acoustic wave sensor. The design effectively improves the accuracy of the measured data of the sensor, avoids the interference of external vibration on the measured result, enables the sensor to reflect the real condition of sound waves more accurately, and improves the reliability and the accuracy of monitoring.

Inventors

• Tang yuquan
• JIANG XINGRONG
• Hu Zhouchang
• JIANG ZHONGSHENG
• YANG SHUANG
• ZHANG ZHIRONG

Assignees

• 中国科学院合肥物质科学研究院

Dates

Publication Date

20260512

Application Date

20250530

Claims (10)

1. 1. The utility model provides a damping device that distributed acoustic wave sensor used, its characterized in that, but including fixed mounting damping frame (1) on waiting to detect equipment, damping frame (1)'s inside is formed with shock attenuation cavity (11), installs elasticity damping member (2) on the chamber wall of shock attenuation cavity (11), and distributed acoustic wave sensor (6) fixed mounting is on the shock attenuation end of elasticity damping member (2).
2. 2. Damping device for a distributed acoustic wave sensor according to claim 1, characterized in that the elastic damping member (2) comprises a damping spring (22) with one end fixedly mounted on the inner wall of the damping cavity (11), the other end of the damping spring (22) is abutted on the surface of the cuboid-shaped distributed acoustic wave sensor (6), and the damping springs (22) are abutted on three surfaces of each vertex angle of the distributed acoustic wave sensor (6).
3. 3. Damping device for a distributed acoustic wave sensor according to claim 2, characterized in that the damping cavity (11) is cuboid adapted to the distributed acoustic wave sensor (6), the damping cavity (11) and the distributed acoustic wave sensor (6) are in the same direction, and each damping spring (22) is compressed between the surfaces of the damping cavity (11) and the distributed acoustic wave sensor (6) which are parallel and close to each other.
4. 4. A damping device for a distributed acoustic wave sensor according to any one of claims 1-3, characterized in that the damping frame (1) is a rectangular parallelepiped hollow frame comprising a plurality of long support rods (111) arranged in the long axis direction, wide support rods (112) arranged in the wide axis direction, and high support rods (113) arranged in the high axis direction, and the ends of the respective long support rods (111), wide support rods (112), and high support rods (113) that are mated are fixedly connected to each other by a tripod (114) to assemble the hollow frame.
5. 5. Damping device for a distributed acoustic wave sensor according to claim 4, characterized in that the damping frame (1) is internally formed with a cuboid-shaped mounting cavity, each wall of which is fixedly provided with a spring support plate (3), the spring support plates (3) enclosing each other to form the damping cavity (11).
6. 6. The damping device for the distributed acoustic wave sensor according to claim 5, wherein each spring supporting plate (3) is connected with a bolt (21) in a threaded manner, the tail end of the damping spring (22) is coaxially and fixedly sleeved on the bolt (21), and an elastic gasket (23) is fixedly arranged at the front end of the damping spring.
7. 7. A damping device for a distributed acoustic wave sensor according to claim 6, characterized in that the spring support plate (3) comprises a wide support plate (31) extending in the direction of the wide axis of the installation cavity and a high support plate (32) extending in the direction of the high axis of the installation cavity.
8. 8. The damping device for the distributed acoustic wave sensor according to claim 7, wherein the front end panel (4) is mounted on the side surface of the damping frame (1) opposite to the wiring port of the distributed acoustic wave sensor (6), wiring holes are reserved on the front end panel (4), and sound insulation plates (5) are covered on the other side surfaces.
9. 9. A damping device for a distributed acoustic wave sensor according to claim 8, characterized in that the high support plates (32) coplanar with the front panel (4) and located on both sides of the front panel (4) are integrally formed with the front panel (4).
10. 10. The vibration damping device for a distributed acoustic wave sensor according to claim 9, wherein four long support rods (111), four wide support rods (112) and four high support rods (113), four wide support plates (31) and eight high support plates (32) are provided.

Description

Damping device for distributed acoustic wave sensor Technical Field The utility model relates to the technical field of sensor damping devices, in particular to a damping device for a distributed acoustic wave sensor. Background In many fields, such as industrial monitoring, security systems, geological exploration, etc., accurate detection and analysis of acoustic signals is critical, and thus acoustic sensors are often used to detect acoustic signals. At present, most of the commonly used acoustic wave sensors are distributed acoustic wave sensors. During installation, a solid support is generally used or a distributed acoustic wave sensor is directly installed on equipment to be monitored, and the installation mode is rapid and simple, so that acoustic wave signals sent by the equipment to be monitored can be effectively monitored. At the same time, however, this type of installation has the disadvantage that the negative effects of the operating vibrations of the device to be monitored on the distributed acoustic wave sensor are not taken into account. In practical application, working vibration of equipment to be monitored often causes signal distortion acquired by a distributed acoustic wave sensor, so that measurement data is inaccurate, and measurement errors are generated. Therefore, the vibration problem of the distributed acoustic wave sensor is seriously affected, and thus the problem needs to be solved. Disclosure of utility model In order to avoid and overcome the technical problems in the prior art, the utility model provides a damping device for a distributed acoustic wave sensor, which can effectively eliminate vibration suffered by the distributed acoustic wave sensor so as to improve the accuracy of measurement data of the distributed acoustic wave sensor. In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a damping device that distributed acoustic wave sensor used, but including fixed mounting is at the shock attenuation frame on waiting to detect equipment, the inside of shock attenuation frame is formed with the shock attenuation cavity, installs the elasticity damping member on the chamber wall of shock attenuation cavity, and distributed acoustic wave sensor fixed mounting is on the shock attenuation end of elasticity damping member. As a still further scheme of the utility model, the elastic damping piece comprises a damping spring, one end of the damping spring is fixedly arranged on the inner wall of the damping cavity, the other end of the damping spring is abutted against the surface of the cuboid-shaped distributed acoustic wave sensor, and the damping springs are abutted against the three surfaces of each vertex angle of the distributed acoustic wave sensor. As a still further scheme of the utility model, the damping cavity is cuboid-shaped and is matched with the distributed acoustic wave sensor, the damping cavity and each axis of the distributed acoustic wave sensor are in the same direction, and each damping spring is respectively compressed between the damping cavity and the surface of the distributed acoustic wave sensor, which are parallel and close to each other. As a still further proposal of the utility model, the shock absorbing frame is a cuboid hollow frame which comprises a plurality of long support rods arranged along the long axis direction, wide support rods arranged along the wide axis direction and high support rods arranged along the high axis direction, and the matched end parts of the long support rods, the wide support rods and the high support rods are fixedly connected with each other through a tripod so as to assemble the hollow frame. As a still further proposal of the utility model, a cuboid-shaped installation cavity is formed in the damping frame, a spring supporting plate is fixedly arranged on each cavity wall of the installation cavity, and each spring supporting plate is mutually enclosed to form the damping cavity. As a still further proposal of the utility model, each spring supporting plate is connected with a bolt in a threaded way, the tail end of the damping spring is coaxially and fixedly sleeved on the bolt, and the front end of the damping spring is fixedly provided with an elastic gasket. As a still further aspect of the present utility model, the spring support plate includes a wide support plate extending in a direction of a wide axis of the installation cavity and a high support plate extending in a direction of a high axis of the installation cavity. As a still further proposal of the utility model, a front panel is arranged on the side surface of the damping frame opposite to the wiring port of the distributed acoustic wave sensor, wiring holes are reserved on the front panel, and sound insulation plates are covered on the other side surfaces. As a still further aspect of the utility model, the high support plates coplanar with and on either sid