User Manual

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-- TABLE OF CONTENTS –
Introduction ..................................................1
Background ...................................................1
Piezoelectric Film Properties .....................................2
Table 1. Typical properties of piezo film .......................3
Table 2. Comparison of piezoelectric materials ..................4
Operating Properties for a Typical Piezo Film Element................4
Lead Attachment Techniques for Piezo Film Sensors .................8
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . ................13
Piezo Film at Low Frequencies ..................................14
Table 3. Capacitance values of common piezo film components . . . 15
Temperature Effects ...........................................25
Piezoelectric Cable and Properties ................................26
Table 4. Piezo Cable Typical Properties.......................26
Piezoelectric Basics ............................................27
Pyroelectric Basics.............................................34
Table 5. Comparison of pyroelectric materials..................35
Basic Circuit Concepts .........................................36
Manufacturing ................................................43
Applications..................................................43
Switches ................................................43
Beam Switch ............................................44
Snap-Action Switches .....................................44
Impact Sensors ..........................................45
Impact Printers......................................45
Sports Scoring ......................................45
Musical Instruments..................................45
Traffic Sensors ......................................46
Vibration Sensing ........................................47
Music Pickups ......................................47
Machine Monitoring .................................48
Bearing Wear Sensors ................................48
Fan Flow Sensor ....................................48
Thread Break Sensor .................................48
Vending Sensors.....................................49
Accelerometers . . . . . . . . . . . . . . . . . . . . . . . . . . ................49
Table 6. Accelerometer Family . . . . . . . . .................50
Table 7. Accelerometer Applications . . . .................51