This work investigated the effects of manufacturing variations, including coil resistance and initial pod mass, on coil lifetime and aerosol generation of Vuse ALTO pods. Random samples of pods were used until failure (where e-liquid was consumed, and coil resistance increased to high value indicating a coil break). Initial coil resistance, initial pod mass, and e-liquid net mass ranged between 0.89 to 1.14 [Ω], 6.48 to 6.61 [g], and 1.88 to 2.00 [g] respectively. Coil lifetime was µ (mean) = 158, σ (standard deviation) = 21.5 puffs. Total mass of e-liquid consumed until coil failure was µ = 1.93, σ = 0.035 [g]. TPM yield per puff of all test pods for the first session (brand new pods) was µ = 0.0123, σ = 0.0003 [g]. Coil lifetime and TPM yield per puff were not correlated with either variation in initial coil resistance or variation in initial pod mass. The absence of e-liquid in the pod is an important factor in causing coil failure. Small bits of the degraded coil could be potentially introduced to the aerosol. This work suggests that further work is required to investigate the effect of e-liquid composition on coil lifetime and TPM yield per puff.

中文翻译：

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电子烟线圈电阻和初始烟弹质量的制造差异对线圈寿命和气溶胶生成的影响


这项工作研究了制造变化（包括线圈电阻和初始烟弹质量）对 Vuse ALTO 烟弹的线圈寿命和气雾生成的影响。使用烟弹的随机样本直至出现故障（电子烟液被消耗，线圈电阻增加到表明线圈断裂的高值）。初始线圈电阻、初始烟弹质量和电子烟液净质量分别在0.89至1.14[Ω]、6.48至6.61[g]和1.88至2.00[g]之间。线圈寿命为 µ（平均值）= 158，σ（标准差）= 21.5 抽吸。直到线圈故障为止消耗的电子烟液的总质量为 µ = 1.93，σ = 0.035 [g]。第一阶段所有测试烟弹（全新烟弹）的每次抽吸 TPM 产量为 µ = 0.0123，σ = 0.0003 [g]。线圈寿命和每次抽吸的 TPM 产量与初始线圈电阻的变化或初始烟弹质量的变化均不相关。烟弹内无烟油是造成线圈故障的重要因素。一小部分降解的线圈可能会被引入气溶胶中。这项工作表明，需要进一步研究电子烟液成分对线圈寿命和每吸 TPM 产量的影响。