An underwater magnetic sensor

A magnetic sensor and magnet technology, applied to instruments, measuring magnetic variables, measuring devices, etc., can solve problems such as unsatisfactory effects, easy water ingress, short circuit, etc., achieve good sealing, and increase underwater pressure resistance , The effect of cylindrical space is convenient

Inactive Publication Date: 2016-04-06
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is generally more effective for the butt joint of two strands of cables, but for the tandem of multiple strands of cables, the effect is not ideal, especially when the water depth and pressure are high, it is easy to enter the water and cause the circuit to be shorted.

Method used

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  • An underwater magnetic sensor
  • An underwater magnetic sensor
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Embodiment Construction

[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0037] like figure 1 As shown, the present invention includes an induction base 1, a magnetic induction sensor 2, a signal junction cable 3, an underwater junction box 4, and a signal output cable 5. After the magnetic signal is induced by the magnetic induction sensor 2, the signal junction cable 3 is merged into the water The lower connection box 4 is used to output the signal output cable 5 after the input signal is connected.

[0038] like Figure 2-7 As shown, a plurality of magnetic induction sensors 2 are loaded on the induction base 1 , and the magnetic induction sensors 2 include a sealing cap 201 and a reed switch 202 . The induction base 1 is provided with a magnet via hole 102 along the axial direction, and the magnet via hole 102 is located in the middle of the induction base 1, allowing the permanent magnet to pass through the induction base 1...

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Abstract

The invention belongs to the field of underwater instruments, especially to an underwater magnet sensor which senses a permanent magnet and outputs signals underwater. The underwater magnetic sensor comprises an inductive pedestal, magnetic induction sensors and an underwater conjunction box, wherein each magnetic induction sensor composed of a tongue tube and a sealing cap is mounted on the inductive pedestal. When the permanent magnet approaches, signals sensed by the magnetic induction sensor are gathered into the underwater conjunction box via signal gathering cables, and the gathered signals are output by a signal output cable after junction. The inductive pedestal includes sealing cap fixing holes, cable sealing holes, a magnet through hole and self fixing holes. The signal gathering cables are respectively sealed by sealing parts when penetrating through the inductive pedestal. The underwater conjunction box is composed of a cylinder and end caps at the two sides, the end caps at the two sides are respectively fixed to watertight plugs, cables on the plugs are gathered inside a sealed compartment, and one watertight plug is connected with the signal output cable to output inductive signals. The underwater magnet sensor has the advantages including sensitive induction, reliable sealing performance and selectable operating water depth.

Description

technical field [0001] The invention belongs to the field of underwater instruments and equipment, in particular to an underwater magnetic sensor which induces the action of a permanent magnet underwater and outputs signals. Background technique [0002] With the needs of the development of human society and the advancement of science and technology, the scale of underwater engineering is getting larger and larger, and it is widely used in the fields of underwater resource investigation, offshore oil exploration, rescue and lifesaving, underwater civil engineering construction, and marine military. Types and different functions of underwater instruments and equipment. Therefore, the design and development of underwater instruments and equipment is a common and important work. [0003] In underwater instruments and equipment, it is often necessary to rely on induced magnetic signals to transmit information or perform system control. How to reliably and sensitively induce mag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/00
Inventor 陈永华
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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