Research Article
The Influence of the Load Type on the Center Frequency Tuning of the Variable-Flux Biaxial Energy Harvester
Table 1
VBH mechanical and electrical specifications.
| | Parameters | Value |
| | Travel track total length (mm) | 72 | | Unstretched end-spring length (mm) | 14.5 | | Compressed end-spring length (mm) | 13.5 | | End-spring inner diameter (mm) | 8.9 | | End-spring outer diameter (mm) | 10.75 | | Stainless steel ball diameter (mm) | 13.05 | | Stainless steel ball mass (grams) | 8.9 | | Proof-mass travel distance (mm) | 30 | | Distance between top magnet and coil (mm) | 14 | | Distance between side magnets (mm) | 26.3 | | Coil inductance | 3.4 | | Coil resistance | 10.6 | | Coil number of turns | 970 | | Top magnet part number [10] | BY0X08DCS | | Side magnets’ part number [11] | BX082CS-S |
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