From: A Portable Triboelectric Nanogenerator for Real-Time Respiration Monitoring

Parameter | Value |
---|---|

Dielectric tribo-pair | PTFE-nylon |

Thickness of nylon plate d_{1} (μm) | 30 |

Relative permittivity of nylon ε_{r1} | 2.55 |

Thickness of PTFE plate d_{2} (μm) | 100 |

Relative permittivity of PTFE ε_{r2} | 3.8 |

Permittivity of vacuum ε_{0} (pF/m) | 8.854 |

Load resistance R (MΩ) | 500 |

Area of the dielectrics S (cm^{2}) | 25 |

Surface charge density σ (μCm^{−2}) | 86 |

Maximum separate distance A (mm) | 8 |

Cycle length of the excitation pattern T (s) | 1.4952 |

Speed of sliding outwards / inwards v_{1} / v_{2} (m/s) | 0.02/0.016 |

Ratio of the exhalation time to the whole breathing cycle η | 0.267 |