The strategy of circuit design for high performance nanogenerator based self-powered heart rate monitor system

High‐Speed Data Communication for Oil and Natural Gas Drilling Based on Triboelectric Nanogenerator

“…In many cases, the energy harvested from the environment is random and disordered. [ 28 ] In our case, there are a power of 500 hp (373,000 W) to 1000 hp (746,000 W) of shallow‐ or moderate‐depth rigs (≈5000 ft) during oil and gas drilling process. The heavy‐duty rigs have a power to 3000 hp (22 38 000 W).…”

“…The average power consumption is given by $$$$\begin{eqnarray}\Delta E = \bar{P} \cdot \Delta t\end{eqnarray}$$$$where $$\bar{P}$$is average power consumption inΔ t . [ 28 ] The power consumption is given by $$$$\begin{eqnarray}\bar{P} = \frac{{\Delta E}}{{\Delta t}}\end{eqnarray}$$$$…”

“…Here, we show that recently developed nanogenerator‐based energy consumption design methods for self‐powered systems [ 28 ] can be used to overcome these challenges. First, according to the vibration of the drill pipe during drilling, a free‐standing layered‐mode triboelectric nanogenerator (FS‐TENG) is designed, which can effectively use the vibration energy.…”

Recent development of piezoelectric biosensors for physiological signal detection and machine learning assisted cardiovascular disease diagnosis

“…Similarly, a circuit design for better real-time heart rate signal collection has also been proposed by Wu et al in 2022. 122 The authors realized real-time heart rate signal collection by integrating an energy supply module, electrocardiogram (ECG) electrodes, a sample circuit, a microcontroller unit (MCU) and a wireless transceiver ( Fig. 6d ).…”

Magnetic Material in Triboelectric Nanogenerators: A Review

“…TENGs possess high flexibility and portability, allowing them to be embedded into various devices and systems, and providing them with self-sustaining power sources. This technology holds great potential for applications in precision instruments [30][31][32][33], wearable devices [34][35][36], chemical reactions [37][38][39], sensors [40][41][42][43], and other portable personal electronic products [44][45][46]. It not only provides continuous and stable energy for these devices but also has the potential to reduce reliance on traditional batteries to some extent, thereby minimizing electronic waste generation and promoting environmental friendliness [47,48].…”