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首页> 外文会议>Conference on Active and passive smart structures and integrated systems; 20090309-12; San Diego, CA(US) >Evaluation of Flexible Transducers for Motion Energy Harvesting
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Evaluation of Flexible Transducers for Motion Energy Harvesting

机译：用于运动能量收集的柔性换能器评估

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摘要

Personal electronic devices such as mobile/cell phones, radios and wireless sensors traditionally depend on energy storage technologies, such as batteries, for operation. By harvesting energy from the local environment, these devices can achieve greater run-times without the need for battery recharging or replacement. Harvesting energy could also achieve a reduction in the weight and volume of the personal devices - as batteries often make up more than half the weight/volume of these devices. Motion energy harvesting is one such approach where energy from mechanical motion can be converted into electrical energy. This can be achieved through the use of flexible piezoelectric transducer materials such as polyvinylidene fluoride (PVDF). A problem with these transducer materials it that their behaviour is non-linear due to operating and environmental conditions. Hence, for this reason researchers have found it has been difficult to measure the harvesting performance i.e. mechanical-to-electrical conversion efficiency. At CSIRO we are currently evaluating the performance of flexible transducers for use as motion energy harvesters. Preliminary results suggest an overall energy harvesting conversion efficiency of 0.65% for a flexible transducer material.
机译：诸如移动/手机，无线电和无线传感器之类的个人电子设备传统上依赖于诸如电池之类的能量存储技术来进行操作。通过从本地环境中收集能量，这些设备可以实现更长的运行时间，而无需对电池进行充电或更换。收集能量还可以减少个人设备的重量和体积-因为电池通常占这些设备重量/体积的一半以上。运动能量收集是一种这样的方法，其中机械运动的能量可以转换为电能。这可以通过使用柔性压电换能器材料（例如聚偏二氟乙烯（PVDF））来实现。这些换能器材料的问题在于，由于操作和环境条件，它们的行为是非线性的。因此，由于这个原因，研究人员发现很难测量收割性能，即机械-电转换效率。在CSIRO，我们目前正在评估用作运动能量采集器的柔性传感器的性能。初步结果表明，柔性换能器材料的整体能量收集转换效率为0.65％。

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