RE<C: Heliostat Orientation Estimation Using a 3-Axis Accelerometer

ثبت نشده
چکیده

After testing many different designs, we built a rough orientation control system using a 3-axis accelerometer, able to sense and direct mirror orientation with close to one degree of precision (20 milliradians) for the entire motion range of the mirror. This level of precision is required for orientation tasks such as stowing the mirror in high winds and bringing the light spot close enough to the target for capture by the precise on-target tracking system.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

RE<C: Pitch/Roll Heliostat Control System Design

1. Overview 2. Design Requirements 3. Alternative Approaches 4. Coordinate Systems and Direction Vectors 4.1. Coordinate Systems 4.2. Reflector Unit Vectors 4.3. Angular Rates and Angular Velocity of the Reflector 4.4. Sensor Data 5. Heliostat-to-Actuator Kinematics 5.1. From Mirror Angular Rates to Linear Actuator Rates 6. Rough Orientation Control 6.1. Orientation Control Specified with Angle...

متن کامل

Development of a Low-Cost Attitude and Heading Reference System Using a Three-Axis Rotating Platform

A development procedure for a low-cost attitude and heading reference system (AHRS) with a self-developed three-axis rotating platform has been proposed. The AHRS consists of one 3-axis accelerometer, three single-axis gyroscopes, and one 3-axis digital compass. Both the accelerometer and gyroscope triads are based on micro electro-mechanical system (MEMS) technology, and the digital compass is...

متن کامل

RE<C: Heliostat Wind Tunnel Experiments

Overview Experiment Setup and Approach Facilities Data Acquisition Calculating Loads Nomenclature and Coordinate Systems Single Heliostat Experiments Single Heliostat Experiment Results Heliostat Field Experiments Field Experiment Results Mitigation Experiments and Results Hemispherical-Backed Heliostat Fences Fence Costs Conclusions Coefficient Summary and Reference Isolated (or Edge) Heliosta...

متن کامل

Quasi-Real Time Estimation of Angular Kinematics Using Single-Axis Accelerometers

In human movement modeling, the problem of multi-link kinematics estimation by means of inertial measurement units has been investigated by several authors through efficient sensor fusion algorithms. In this perspective a single inertial measurement unit per link is required. This set-up is not cost-effective compared with a solution in which a single-axis accelerometer per link is used. In thi...

متن کامل

Design and fabrication of three axes accelerometer

Technology can provide safety in physical practices and improving the performance of these activities, so manufacturing of equipments for these purposes has been considered widely. The aim of the present paper was design and fabrication of three-axis accelerometer. hree acceleration sensors, three gyroscopes for angular velocity measurement, a microcontroller for converting analog data to ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2012