阅读说明：本技术 一种基于楔形结构的磁流变压力传感装置 (Magnetorheological pressure sensing device based on wedge-shaped structure ) 是由 周崇秋 陈俊元 贺新升 高春甫 张可 林永久 于 2020-07-27 设计创作，主要内容包括：本发明涉及一种基于楔形结构的磁流变压力传感装置,该装置由外壳、楔形锥、活塞杆、一号极板、二号极板、三号极板、四号极板、五号极板、六号极板、端盖、一号弹簧、控制器外壳、控制器、二号弹簧、通电导线、信号线、三号弹性体、二号弹性体、一号弹性体、励磁线圈、密封圈组成。所述楔形锥放置在外壳的内部中心处,并用密封圈进行密封；所述一号极板、三号极板、五号极板紧贴在活塞杆侧面上；所述二号极板、四号极板、六号极板嵌于外壳内,且置于活塞杆侧面；所述一号弹性体、二号弹性体、三号弹性体分别放置于活塞杆凹陷处；所述控制器放置于控制器外壳内,其输出端连接有信号线和通电导线；所述二号弹簧放置在楔形锥底部。(The invention relates to a magnetorheological pressure sensing device based on a wedge-shaped structure, which consists of a shell, a wedge-shaped cone, a piston rod, a first polar plate, a second polar plate, a third polar plate, a fourth polar plate, a fifth polar plate, a sixth polar plate, an end cover, a first spring, a controller shell, a controller, a second spring, an electrified lead, a signal wire, a third elastomer, a second elastomer, a first elastomer, an excitation coil and a sealing ring. The wedge-shaped cone is placed at the center of the inner part of the shell and is sealed by a sealing ring; the first polar plate, the third polar plate and the fifth polar plate are tightly attached to the side surface of the piston rod; the second pole plate, the fourth pole plate and the sixth pole plate are embedded in the shell and are arranged on the side surface of the piston rod; the first elastic body, the second elastic body and the third elastic body are respectively arranged at the concave part of the piston rod; the controller is arranged in the controller shell, and the output end of the controller is connected with a signal wire and a power-on wire; the second spring is placed at the bottom of the wedge-shaped cone.)

1. The utility model provides a magnetic current becomes pressure sensing device based on wedge structure, the device comprises shell (1), wedge awl (2), piston rod (3), polar plate (4), No. two polar plates (5), No. three polar plates (6), No. four polar plates (7), No. five polar plates (8), No. six polar plates (9), end cover (10), spring (11), controller shell (12), controller (13), No. two spring (14), circular telegram wire (15), signal line (16), No. three elastomer (17), No. two elastomer (18), elastomer (19), excitation coil (20), sealing washer (21). The wedge-shaped cone (2) is placed at the center of the inner part of the shell (1) and is sealed by a sealing ring (21); the piston rod (3) is horizontally arranged in the shell (1) and is tightly attached to the wedge-shaped cone (2); the first polar plate (4), the third polar plate (6) and the fifth polar plate (8) are tightly attached to the side surface of the piston rod (3); the second pole plate (5), the fourth pole plate (7) and the sixth pole plate (9) are embedded in the shell (1) and are arranged on the side face of the piston rod (3); the first elastic body (19), the second elastic body (18) and the third elastic body (17) are respectively arranged at the concave part of the piston rod (3); the end cover (10) is in threaded connection with the shell (1); the first spring (11) is arranged between the end cover (10) and the piston rod (3); the controller shell (12) is placed at the bottom of the shell (1) and is welded with the shell (1); the controller (13) is arranged in the controller shell (12), and the output end of the controller is connected with a signal wire (16) and an electrified lead (15); the second spring (14) is placed at the bottom of the wedge-shaped cone (2); the excitation coil (20) is wound inside the piston rod (3).

2. The magnetorheological pressure sensing device based on the wedge structure according to claim 1, wherein: the inner part and the surface of the shell (1) are subjected to insulation treatment.

3. The magnetorheological pressure sensing device based on the wedge structure according to claim 1, wherein: the first pole plate (4), the second pole plate (5), the third pole plate (6), the fourth pole plate (7), the fifth pole plate (8) and the sixth pole plate (9) are all made of copper.

4. The magnetorheological pressure sensing device based on the wedge structure according to claim 1, wherein: the first elastomer (19), the second elastomer (18) and the third elastomer (17) are all pre-structured magnetorheological elastomers.

5. The magnetorheological pressure sensing device based on the wedge structure according to claim 1, wherein: the surface of the piston rod (3) is subjected to insulation treatment.

Technical Field

The invention relates to a pressure sensing device, in particular to a magnetorheological pressure sensing device based on a wedge-shaped structure.

Background

With the development of underwater detection technology, underwater pressure sensing devices are widely applied to submarines and underwater robots. However, as the underwater detection depth is deeper and deeper, the water pressure of the sea bottom exceeds the measurement range of a common pressure sensor, and an underwater pressure sensing device with a wider measurement range is urgently needed. Therefore, the invention designs the magneto-rheological pressure sensing device based on the wedge-shaped structure by combining the magnetic control rigidity variable property and the piezoresistive property of the magneto-rheological elastomer

Disclosure of Invention

The invention aims to provide a magnetorheological pressure sensing device based on a wedge-shaped structure, which can measure the pressure of the sea bottom and the change process of the seawater pressure.

In order to effectively solve the above problems, the present invention is implemented as follows: the device comprises a shell 1, a wedge-shaped cone 2, a piston rod 3, a first pole plate 4, a second pole plate 5, a third pole plate 6, a fourth pole plate 7, a fifth pole plate 8, a sixth pole plate 9, an end cover 10, a first spring 11, a controller shell 12, a controller 13, a second spring 14, an electrified lead 15, a signal wire 16, a third elastic body 17, a second elastic body 18, a first elastic body 19, an excitation coil 20 and a sealing ring 21. The wedge-shaped cone 2 is placed at the inner center of the shell 1 and sealed by a sealing ring 21; the piston rod 3 is horizontally arranged in the shell 1 and is tightly attached to the wedge-shaped cone 2; the first polar plate 4, the third polar plate 6 and the fifth polar plate 8 are tightly attached to the side surface of the piston rod 3; the second pole plate 5, the fourth pole plate 7 and the sixth pole plate 9 are embedded in the shell 1 and are arranged on the side surface of the piston rod 3; the first elastic body 19, the second elastic body 18 and the third elastic body 17 are respectively arranged at the concave part of the piston rod 3; the end cover 10 is in threaded connection with the shell 1; the first spring 11 is placed between the end cover 10 and the piston rod 3; the controller shell 12 is placed at the bottom of the shell 1 and is welded with the shell 1; the controller 13 is arranged in the controller shell 12, and the output end of the controller is connected with a signal wire 16 and an electrified conducting wire 15; the second spring 14 is placed at the bottom of the wedge-shaped cone 2; the exciting coil 20 is wound inside the piston rod 3.

The inner part and the surface of the shell 1 are both subjected to insulation treatment.

The first polar plate 4, the second polar plate 5, the third polar plate 6, the fourth polar plate 7, the fifth polar plate 8 and the sixth polar plate 9 are all made of copper.

The first elastomer 19, the second elastomer 18 and the third elastomer 17 are all pre-structured magnetorheological elastomers.

And the surface of the piston rod 3 is subjected to insulation treatment.

The magneto-rheological pressure sensing device based on the wedge-shaped structure has the advantages that: the pressure is characterized by measuring the piezoresistive value of the pre-structured magneto-rheological elastomer, and the measured piezoresistive average value is taken, so that the measured data is more accurate; because there are four measurement orientations, the seawater pressure is divided into four parts equally, and the pressure characterization range can be enlarged, so that the seawater pressure at a deeper position can be measured.