文档介绍：3
System Interfacing,
Instrumentation,
and Control Systems
Introduction
The Mechatronic System • A Home/Office Example
• An Automotive Example
Input Signals of a Mechatronic System
Transducer/Sensor Input • Analog-to-Digital
Converters
Output Signals of a Mechatronic System
Digital-to-Analog Converters • Actuator Output
Signal Conditioning
Sampling Rate • Filtering • Data Acquisition Boards
Microprocessor Control
PID Control • Programmable Logic
Controllers • Microprocessors
Microprocessor Numerical Control
Fixed-Point Mathematics • Calibrations
Microprocessor Input–Output Contro
Polling and Interrupts • Input and Output
Transmission • HC12 Microcontroller Input–Output
Subsystems • work Systems
Software Control
Systems Engineering • Software Engineering
• Software Design
Testing and Instrumentation
Verification and Validation • Debuggers
Rick Homkes • Logic Analyzer
Purdue University Summary
Introduction
The purpose of this chapter is to introduce a number of topics dealing with a mechatronic system.
This starts with an overview of mechatronic systems and a look at the input and output signals
of a mechatronic system. The special features of microprocessor input and output are next.
Software, an often-neglected portion of a mechatronic system, is briefly covered with an emphasis
on software engineering concepts. The chapter concludes with a short discussion of testing and
instrumentation.
©2002 CRC Press LLC
The Mechatronic System
Figure shows a typical mechatronic system with mechanical, electrical, ponents.
The process of system data acquisition begins with the measurement of a physical value by a sensor. The
sensor is able to generate some form of signal, generally an analog signal in the form of a voltage level
or waveform. This analog signal is sent to an analog-to-digital converter (ADC). Commonly using a
process of essive approximation, t