Input/Data Acquisition System Design for Human Computer Interfacing

William Putnam and R. Benjamin Knapp

A PDF hardcopy version of these notes is available.

• 1 Introduction
• 2 General Overview
  • 2.1 The Sensor
  • 2.2 Signal Conditioning
  • 2.3 Data Acquisition
• 3 Sensors
  • 3.1 Piezoelectric Sensors
  • 3.2 Force Sensing Resistors
  • 3.3 Accelerometer (Analog Devices ADXL50)
  • 3.4 Biopotential Sensors
  • 3.5 Microphones
• 4 Signal Conditioning
  • 4.1 Requirements for A-D converters
  • 4.2 Additional Requirements for Signal Conditioning
  • 4.3 Voltage to Voltage
  • 4.4 Current to Voltage
  • 4.5 Resistance to Voltage
  • 4.6 Capacitance to Voltage
  • 4.7 Additional Signal Conditioning Circuits
• 5 Data Acquisition
  • 5.1 Anti-aliasing
  • 5.2 Sample and Hold
  • 5.3 Analog to Digital Conversion
• 6 System Integration
  • 6.1 Data Acquisition system
  • 6.2 BioMuse
  • 6.3 Radio Baton
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