{
  "schema_version": 1,
  "experiment": "course-02/thermal-expansion",
  "references": [
    {
      "id": "tang2012-thermal-expansion",
      "title": "光杠杆法测定金属的线胀系数",
      "authors": [
        "唐军杰",
        "杨翼",
        "肖鸿宇",
        "缪俊茜",
        "赵昆",
        "王爱军",
        "吴冲"
      ],
      "journal": "现代科学仪器",
      "year": 2012,
      "issue": 6,
      "pages": "155–156",
      "doi": null,
      "full_text_status": "obtained_and_read_from_rendered_pages",
      "pdf_sha256": "48b05526a538a5a16a50e5e62a335d2e42f05b34dfec045aad6409b390572dec",
      "locators": [
        {
          "page": 155,
          "location": "§1.1式1–4",
          "supports": "小温区工程线膨胀；光杠杆换算仅作装置区别"
        },
        {
          "page": 156,
          "location": "图1、§2",
          "supports": "光杠杆几何、温度斜率法和均温水浴"
        }
      ],
      "apparatus_mapping": "paper optical lever; current dial displacement uses direct gain G, not H/(2D)",
      "source_limitations": [
        "no transient thermal ODE in paper",
        "paper material data not substituted for original lecture-example readings"
      ]
    },
    {
      "id": "cai2016-electrothermal",
      "title": "电热法测量热功当量实验的新探究",
      "authors": [
        "蔡晨",
        "李朝荣",
        "李英姿",
        "王选"
      ],
      "journal": "大学物理",
      "year": 2016,
      "volume": 35,
      "issue": 5,
      "pages": "53–56",
      "doi": "10.16854/j.cnki.1000-0712.2016.0080",
      "url": "https://doi.org/10.16854/j.cnki.1000-0712.2016.0080",
      "full_text_status": "obtained_and_read",
      "pdf_sha256": "5b2e2c394806f977ffd62161df0a2d1ea40f17463731632adc2f3055118c17ea",
      "locators": [
        {
          "page": 53,
          "location": "式1–5",
          "supports": "均温总热容、电功和牛顿冷却微分方程"
        },
        {
          "page": 54,
          "location": "式7–8",
          "supports": "精确指数温度响应与冷却拟合"
        },
        {
          "page": 55,
          "location": "§2.2",
          "supports": "SI热容下能量比为无量纲约1"
        }
      ],
      "symbol_mapping": "K_paper [1/s] = H [W/K] / C_eff [J/K]; C_eff=J_lab [J/cal] C_lab [cal/K]",
      "verification_notes": [
        "cooling regression slope is negative; K=-slope",
        "relative error of temperature increment uses denominator 1-exp(-Kt), not remaining-temperature normalization",
        "paper 500/530s range is not adopted as universal optimum"
      ]
    }
  ]
}