Ship shafting torque measuring probe in eccentric error correcting mode

A technology for eccentricity error and torque measurement, which is applied in the field of torque measurement probes for ship shafting, can solve problems such as large interference, poor anti-interference ability, and complex test circuits, and achieve fast response speed, improved measurement accuracy, and simple design.

Inactive Publication Date: 2014-07-02
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this measurement technique also has some disadvantages: such as greater interference by factors such as sound velocity and environmental media, poor anti-interference ability and complex test circuit, and a variety of compensations must be performed to obtain higher accuracy

Method used

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  • Ship shafting torque measuring probe in eccentric error correcting mode
  • Ship shafting torque measuring probe in eccentric error correcting mode
  • Ship shafting torque measuring probe in eccentric error correcting mode

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Embodiment Construction

[0036] The eccentricity error correction type ship shafting torque measurement probe provided by the present invention adopts the structure of semiconductor laser + photodiode + eddy current displacement sensor, and the laser clamping block and the middle block are installed on the base at an appropriate distance to ensure that the inlaid The photodiode on the photoelectric receiving block fixed on the middle block and the semiconductor laser on the laser clamping block can form opposite beams. The semiconductor laser is connected with the aviation joint through the wire, the photodiode is connected with the aviation joint on the middle block through the wire, and the aviation joint is connected with the control circuit board through the cable. After the code disc rotates, due to the existence of eccentricity, as the distance between the code disc jacket and the eddy current displacement sensor changes back and forth, a periodic electrical signal appears in the eddy current sen...

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Abstract

The invention relates to a ship shafting torque measuring probe in an eccentric error correcting mode. The ship shafting torque measuring probe in the eccentric error correcting mode is mainly composed of a photoelectric receiving module (4), an eddy current displacement sensor (5), a photoelectric diode (3), a semiconductor laser (2), a laser clamping block (1) and a middle block (6), wherein the laser clamping block (1) and the middle block (6) are arranged on a base (7). The laser clamping block (1) is provided with through holes which are used for containing and fixing the semiconductor laser (2), and the photoelectric receiving module (4) is fixed to the middle block (6) and serves as an upholder of the photoelectric diode (3). The middle block (6) is used for clamping a connecting leading wire of the eddy current displacement sensor (5) and the photoelectric diode (3). According to the ship shafting torque measuring probe in the eccentric error correcting mode, an optimization design is adopted overall, space is saved, and the torsion phase angle deviation caused by code disc eccentric errors is eliminated. Meanwhile, the invention further provides two methods for obtaining an initial phase angle.

Description

technical field [0001] The invention relates to a part of a measuring device, in particular to an eccentric error correction type ship shafting torque measuring probe, which is suitable for applications such as monitoring shafting torque and power and other working conditions. Background technique [0002] In modern science and technology, various system facilities have strengthened the online monitoring system for safety considerations. If something goes wrong, it can be conveniently prevented and maintained, so as to ensure safety. With the rapid development of the modern shipbuilding industry, various power plants have emerged, and their complexity has gradually increased. The diesel engine occupies an important position like the "heart" in the whole ship, and the power of the output shaft is one of the most important performance parameters of the diesel engine. Its reliability is related to the operation of the ship and the personal safety of many personnel. At present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L3/00
Inventor 杨琨严新平邓文军肖劲飞陈冰清
Owner WUHAN UNIV OF TECH
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