Page 427 - Sensors and Control Systems in Manufacturing

Sensors in Flexible Manufacturing Systems
• Single-axis displacement of measurement 381
• Two-dimensional location measurement
• Three-dimensional location measurement

8.2.1 Current Available Sensor Technology for FMS
The currently available sensors for manufacturing applications can
be classified into four categories:
• Vision sensors
• Photodetector
• Linear array
• TV camera
• Laser triangulation
• Laser optical time-domain reflectometry
• Optical fiber
• Tactile sensors
• Probe
• Strain gauges
• Piezoelectric
• Carbon material
• Discrete arrays
• Integrated arrays
• Acoustic sensors
• Ultrasonic detectors and emitters
• Ultrasonic arrays
• Microphones (voice control)
• Passive sensors
• Infrared
• Magnetic proximity
• Ionizing radiation
• Microwave radar

Integrating vision sensors and robotics manipulators in flexible
manufacturing systems presents a serious challenge in production.
Locating sensors on the manipulator itself, or near the end effector,
provides a satisfactory solution to the position of sensors within the
FMS. Locating an image sensor above the work area of a robot may
cause the manipulator to obscure its own work area. Measurement of
the displacement of the end effector also may suffer distortion since