He II在第二声波激励下的电响应研究
A Study of the Electric Response of He II at the Excitation of Second Sound Waves
摘要：
本文报道了超流氦电响应的实验研究。我们的结果证实了加热器产生的氦中正常流体和超流成分的相对振荡运动中出现的电势的存在。在前四个谐波中观察到电势的共振。所建议的用于检测电响应的方法允许将所需的谐振峰值与寄生信号区分开。我们的结果是在定性的协议与以前的研究人员发表的数据。讨论了电势差测量值不一致的原因。
英文摘要：
We report an experimental investigation of the electric response of superfluid helium. Our results confirm the presence of electric potential that appears at the relative oscillatory motion of normal fluid and superfluid components in helium generated by the heater. The resonance of the electric potential was observed in the first four harmonics. A suggested method for the detection of the electric response allows the required resonance peak to be distinguished from spurious signals. Our results are in qualitative agreement with the data published by previous researchers. The reasons for the discrepancy in the measured values of the potential difference are discussed.
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