IEC 62969-3:2018 describes terms, definitions, symbols, configurations, and test methods that can be used to evaluate and determine the performance characteristics of mechanical shock driven piezoelectric energy harvesting devices for automotive vehicle sensor applications. This document is also applicable to energy harvesting devices for motorbikes, automobiles, buses, trucks and their respective engineering subsystems applications without any limitations of device technology and size.<\/p>\n
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| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 3.1 General terms Figures Figure 1 \u2013 Shock driven energy harvester using cantilever with piezoelectric film <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 3.2 Piezoelectric transducer Figure 2 \u2013 Conceptual diagram of shock driven piezoelectricenergy harvester <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 3.3 Characteristic parameters Figure 3 \u2013 Equivalent circuit of shock driven piezoelectric energy harvester <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 4 Essential ratings and characteristic parameters 4.1 Identification and type 4.2 Limiting values and operating conditions Table 1 \u2013 Specification parameters for shock drivenpiezoelectric energy harvesters <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 4.3 Additional information 5 Test method 5.1 General <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 5.2 Electrical characteristics 5.2.1 Test procedure Figure 4 \u2013 Measurement procedure of shock drivenpiezoelectric energy harvester <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 5.2.2 Capacitance 5.2.3 Natural frequency Figure 5 \u2013 Test setup for the electrical characteristicsof shock driven piezoelectric energy harvester <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 5.2.4 Damping ratio 5.2.5 Output voltage Figure 6 \u2013 Output waveform and its frequency componentof a shock driven piezoelectric energy harvester <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 5.2.6 Output current 5.2.7 Output power Figure 7 \u2013 Output voltages of shock excited piezoelectricenergy harvester at various external loads Figure 8 \u2013 Output currents of shock driven piezoelectricenergy harvester at various output voltages <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 5.2.8 Optimal load impedance 5.2.9 Maximum output power Figure 9 \u2013 Output power of shock driven piezoelectric energyharvester at various external loads <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 5.3 Mechanical characteristics 5.3.1 Test procedure Figure 10 \u2013 Output power and voltage of shock driven piezoelectricenergy harvester at various shock amplitudes <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 5.3.2 Temperature range Figure 11 \u2013 Block diagram of a test setup for evaluating the reliabilityof shock driven piezoelectric energy harvester <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 5.3.3 Shock magnitude 5.3.4 Temperature and humidity testing 5.3.5 Mechanical reliability (shock) testing <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Annex A (informative) Mechanical shock pulses Figure A.1 \u2013 Comparison of general shock patterns and shock pattern from automobile <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Figure A.2 \u2013 Impact (or shock) recorded by an electronic impact recorder <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Annex B (informative) Electromechanical coupling B.1 Compliance and coupling coefficient relation B.2 Young\u2019s modulus and coupling coefficient relation <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Semiconductor devices. Semiconductor interface for automotive vehicles – Shock driven piezoelectric energy harvesting for automotive vehicle sensors<\/b><\/p>\n |