A microcontroller-based automatic data logger for wind speed, wind direction, and atmospheric pressure

Date

3-2004

Degree

Bachelor of Science in Applied Physics

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Meredith Anne C. Sotto

Abstract

A microcontroller-based automatic data logger ,s stem was designed and used for measuring wind speed. wind direction, and atmospheric pressure Three sensors namely MPX4 I I5A pressure sensor, potentiometer-type mild wane, and pulse-type 3-cup anemometer, were interfaced into the system The system was designed to automatically collect data from the sensors for a certain length 01- tune and store them in non-volatile memories for retrieval using serial interface to a personal computer The study has four main parts namely hardware design, software design, calibration, and data collection and storage. Two microcontroller units were used to perform together the processes of data collection, data processing, data storage, and data display and retrieval The sensors used were calibrated against a standard The whole system was subjected to a week of data gathering set at an hourly logging interval Readings of wind speed and wind direction from an existing automatic data logger system were compared with results and showed a linear relationship with correlation coefficient greater than 0.9. The results showed that the system is comparable to other standard commercial data logger systems. The designed system provides a low cost alternative to existing expensive systems on the market today.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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