Now, accompanied by increasing the level of science and technology, many industries need to measure horizontal reference, but the traditional measuring method has already can't satisfy the needs of the development of engineering, because the preparation trival, small measuring range, affected by the temperature around big shortcomings, such as, buried a huge hidden trouble to the industrial production, not only from the industrial development to the requirement of measuring instrument, measuring the range and the need for human, lead to the measuring accuracy are greatly influenced by artificial factors, therefore, nowadays the society urgently need a high precision, high reliability of dipmeter,
This article is based on an Angle measuring instrument, 51 single-chip microcomputer implementation of Angle measurement, the design is the AT89C51 single-chip computer models used, at the same time also used a used in the design for the Angle sensor, the sensor model is ADXL345, hardware design part mainly introduces the various components of the circuit design and pin function, the software design part mainly introduces the point of data collection, threshold data storage and alarm parts processing, and gives some important subroutine, system debugging part makes a detailed instructions on this paper selected the four,