Active type split direct laser rudder angle position sending device

Abstract

An active type split direct laser rudder angle position sending device relates to a rudder angle position sending device which rotates with a rudder and is capable of directly reading and sending rudder angle position information. The device is composed of a laser recognizer, an identification piece, a circuit board, a setting device, an interface, a connection piece, a casing and a recessed cavity cover. The laser recognizer, the identification piece, the circuit board and the connection piece are sealed in the casing, the setting device, the laser recognizer and the interface are connected with the circuit board, the setting device and the interface are arranged in a recessed cavity of the surface of the casing, the recessed cavity cover capable of being opened is arranged above the setting device and the interface, the recessed cavity cover enables the setting device and the interface to be sealed in the recessed cavity, the laser recognizer is fixed on the connection piece, the connection piece is fixed on a rudder rod, the identification piece is fixed, and a reading opening of the laser recognizer faces an identification on the non-horizontal identification piece in non-vertical mode. The device is high in accuracy and suitable for being used in various angle position detection occasions.

Description

Technical field: [0001] The invention relates to an angular position sending device, in particular to a ship rudder angular position sending device. Background technique: [0002] The rudder instrument is a necessary instrument and equipment for ships of various sizes navigating on water. The rudder instrument displays the position of the rudder based on the information of the rudder angle sending device. At present, the rudder angle sending device uses a parallelogram The opposite sides are kept synchronously and the linkage mechanism of the parallel principle drives devices such as potentiometers, Hall elements, variable capacitors, and rotary encoders to rotate synchronously with the rudder. These devices will generate magnetic, electric, pulse, etc. values ​​when rotating. Change, use the change of these values ​​to simulate the angle of the rudder change. [0003] In addition to the problems of small transmission distance, poor anti-interference, and easy wear and tear...

AI Technical Summary

Problems solved by technology

[0004] 1. Even if it is a very precise linkage mechanism, it is inevitable to accumulate errors and conduction errors, and the accuracy is difficult to reach 0.1 degrees

[0005] 2. These devices are not specially designed for angular position sensing, the linearity of numerical changes is not perfect, and it is difficult to accurately simulate the changing angular position of the rudder

[0006] 3. Because these devices do not directly read the data of angle changes, nor generate usable digital information, but convert analog signals into digital signals, which not only affects the accuracy, but also affects the overall response time

[0007] 4. It is difficult to adjust the zero position. Although the detection of the rudder angle of the ship is basically not greater than 180 degrees, the zero position needs to be determined. The existing sensor devices for angle detection can rotate 360 ​​degrees, but except for the rotary encoder It cannot detect 360 degrees, and there is a numerical blind zone, which adds a lot of trouble to the determination of the zero position.

But still can not overcome the above defects

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