A fieldable sensor or system can be defined as a portable one that can be used in the field. Current needs for fieldable system development are driven by demands imposed from the Internet of Things (IoT), from Industry 4.0, and to a lesser degree from the requirement of “bringing part of the lab to the sample” (e.g., for measurements in the field). To operate in the field, fieldable sensors or systems must be operated from a battery. It would be ideal if field-operation did not require a battery, instead energy was harvested from the ambient environment, using for instance Tribo Electric Nano Generators (TENGs), as will be described here.
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