具有集成力与位移传感器的压电式单轴压力池
宇宙学与河外天体物理
2019-08-01 v3 天体物理仪器与方法
高能物理 - 实验
摘要
我们提出了一种压电驱动的单轴应力池设计，适用于环境温度和低温，并集成了位移与力传感器。该压力池直径为 46 mm，高度为 13 mm。它可施加高达约 45 m 的零载荷位移，以及高达约 245 N 的零位移力。结合施加于样品的位移与力的信息，可快速判断样品及其夹具是否仍处于弹性限度内。在对氧化物金属 SrRuO 的测试中，我们发现室温下样品的明显塑性变形始于约 0.2 GPa 的单轴应力，而在 5 K 下样品变形在接近 2 GPa 前保持弹性。该结果凸显了原位调控的实用性，即可在将样品冷却至低温后再施加力。
引用
@article{arxiv.1810.09572,
title = {Inflation and Early Dark Energy with a Stage II Hydrogen Intensity Mapping Experiment},
author = {Cosmic Visions 21 cm Collaboration and Réza Ansari and Evan J. Arena and Kevin Bandura and Philip Bull and Emanuele Castorina and Tzu-Ching Chang and Shi-Fan Chen and Liam Connor and Simon Foreman and Josef Frisch and Daniel Green and Matthew C. Johnson and Dionysios Karagiannis and Adrian Liu and Kiyoshi W. Masui and P. Daniel Meerburg and Moritz Münchmeyer and Laura B. Newburgh and Andrej Obuljen and Paul O'Connor and Hamsa Padmanabhan and J. Richard Shaw and Christopher Sheehy and Anže Slosar and Kendrick Smith and Paul Stankus and Albert Stebbins and Peter Timbie and Francisco Villaescusa-Navarro and Benjamin Wallisch and Martin White},
journal= {arXiv preprint arXiv:1810.09572},
year = {2019}
}
备注
This white-paper was prepared under auspices of the Department of Energy Cosmic Visions Dark Energy program; v1: initial release in Oct 2018; v2: Jul 2019 update: strawman design matches PUMA Decadal Submission, updated forecasting, new figures and science section; v3: fixed reference, missing author in metadata