A metal thermoelectric energy harvester design with long metal couples was investigated for use with wireless sensors in environments where conventional thermoelectric harvesters are difficult to implement. Two thermoelectric harvesters with different designs was assembled by spot welding 110 mu m thick molybdenum foil and 150 mu m thick nickel foil together in a zigzag-pattern, one 3-couples design (55 mm length and 6 mm width) insulated with glass fiber at the hot side and polyimide tape at the cold side, and one 10-couples design (300 mm length and 3 mm width) insulated with polyimide tape across the entire length. The voltage- and power output were measured at different temperatures and load resistance with maximum power output of 588 mu W at 269 degrees C for the 3-couples harvester and 868 mu W at 241 degrees C for the 10-couples harvester. The power output after power management electronics for the 10-couples harvester measured 290 mu W at 51 mV. The harvesters were compared to a conventional semiconductor thermoelectric device coupled with a 300 mm long copper heat bridge giving a power output after power management electronics of 170 mu W at 41 mV with 226 degrees C temperature gradient of the environment.

中文翻译：

---

用于无线传感器的金属热电收割机

研究了一种具有长金属偶的金属热电能量收集器设计，用于在传统热电收集器难以实施的环境中与无线传感器一起使用。两台不同设计的热电收割机通过 110 μm 厚的钼箔和 150 μm 厚的镍箔以锯齿状点焊在一起，一个 3 对设计（长 55 mm，宽 6 mm）用玻璃纤维绝缘热侧和冷侧的聚酰亚胺胶带，以及一个 10 对设计（300 毫米长和 3 毫米宽）在整个长度上用聚酰亚胺胶带绝缘。电压和功率输出是在不同温度和负载电阻下测量的，3 对采集器在 269 摄氏度时的最大功率输出为 588 微瓦，10 对采集器在 241 摄氏度时的最大输出功率为 868 微瓦。10 对采集器的电源管理电子设备后的功率输出在 51 mV 时测量为 290 微瓦。将收集器与传统的半导体热电设备进行比较，该设备与 300 毫米长的铜热桥耦合，在 41 mV 和 226 摄氏度的环境温度梯度下，在电源管理电子设备后提供 170 微瓦的功率输出。