{
  "abstract": "The next-generation pressure standard is moving toward optical-based, field-deployable systems. However, most existing optical refractometry pressure standards rely on bulky ultra-low expansion (ULE) cavities and complex feedback locking, limiting their portability and on-site applicability. Here, we present a miniaturized, transportable optical pressure manometer based on a dual-channel Fabry-Perot cavity machined from a single block of common fused silica. By employing a differential measurement between an evacuated reference cavity and a gas-exposed measurement cavity, common-mode errors such as thermal expansion and pressure-induced deformation are largely canceled, enabling the use of low-cost fused silica to achieve performance comparable to ULE. Radio-frequency scanning with Lorentzian fitting replaces conventional feedback locking, simplifying the optical design and improving robustness. Calibrated against a piston manometer, the device demonstrates a measurement repeatability of 3.4~ppm and a total uncertainty of \\(u = \\sqrt{(10.6\\times10^{-6}p)^2 + (5.4~\\mathrm{mPa})^2}\\). The system can resolve periodic pressure fluctuations originating from the piston manometer and exhibits superior response speed. With its small footprint, portability, and independence from external frequency references, this fused-silica dual-cavity manometer offers a practical route toward on-site, quantum-traceable pressure calibration.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.11964",
  "author_total": 5,
  "authors": [
    {
      "name": "Zhong-Liang Nie"
    },
    {
      "name": "Jin Wang"
    },
    {
      "name": "Zi-Fan Zhao"
    },
    {
      "name": "Chang-Le Hu"
    },
    {
      "name": "Shui-Ming Hu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7g43g0vbfb2eq.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.11964",
  "fulltext_url": null,
  "id": "7g43g0vbfb2eq",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.11964",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.gen-ph"
    ],
    [
      "arxiv",
      "physics.optics"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.11964",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7g43g0vbfb2eq.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:07Z",
      "native_id": "2609.11964",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.11964"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Field-Deployable Pressure Standard Based on a Compact Dual-Cavity Refractometer",
  "title_text": "Field-Deployable Pressure Standard Based on a Compact Dual-Cavity Refractometer",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:07Z",
  "url": "https://research.draconitic.com/paper/7g43g0vbfb2eq",
  "venue": "arXiv",
  "versions": []
}