Ship-swaying dip angle measuring instrument

Abstract

The invention relates to a ship-swaying dip angle measuring instrument. The ship-swaying dip angle measuring instrument comprises a microcontroller, a measuring circuit, a displaying circuit and a communication circuit, wherein the measuring circuit, the displaying circuit and the communication circuit are connected onto the microcontroller. The model of the microcontroller is ATMEGA48, the displaying circuit is a nixie tube dynamic display module, PC0-PC5 ports of the microcontroller are connected to the input end of the nixie tube dynamic display module respectively, and PD0-PD5 ports of the microcontroller drive three selection ports of the nixie tube dynamic display module respectively. The measuring circuit comprises a triaxial accelerometer chip, wherein the triaxial accelerometer chip is connected with the microcontroller through a single program initiation (SPI) bus, and the communication circuit adopts an MAX232 serial communication chip. The ship-swaying dip angle measuring instrument can measure transverse swing and longitudinal swing simultaneously, is high in measurement accuracy and can perform remote operation to measurement data.

Description

technical field [0001] The invention relates to a measuring instrument, in particular to an instrument for measuring the inclination angle, a measuring device for indicating the ship's roll and pitch angles, and relates to the field of ship automation measurement and control. Background technique [0002] The ship roll and inclinometer is mainly used in the measurement of the swing attitude angle of various types of ships. The conventional measurement of the ship roll attitude angle is realized by a mechanical structure inclinometer. Its structure is composed of a gravity pendulum, a rotating bearing, a dial Composition, such as figure 1 shown; the installation and calibration of the inclinometer is required to be carried out when the ship is in a horizontal state, and the inclinometer is vertically installed and fixed on the bulkhead of the ship, and the pendulum pointer is guaranteed to point to the zero position on the dial; since the dial of the inclinometer is fixed and...

AI Technical Summary

Problems solved by technology

The inclinometer can only measure the inclination angle in one direction. If you want to measure the inclination angle in the two directions of ship roll and pitch, you must install inclinometers in the two directions of roll and pitch respectively. Some inclinometers also have The maximum value recording pointer is used to record the maximum inclination angle; the inclinometer with this mechanical structure has poor measurement accuracy, and installation and calibration are troublesome. The measurement data is read manually by reading the dial. Reading data by method, because the measurement data can only be read manually, there is a large reading error, and the measurement data cannot be connected to the computer to realize remote data transmission

Images