🌡️ 湿球温度计算器（干湿表方程 + Stull 公式，含露点）Wet-Bulb Temperature Calculator (Psychrometric Equation + Stull Formula, with Dew Point)

使用说明与常见问题How-to & FAQ

「湿球温度计算器（干湿表方程 + Stull 公式，含露点）」是什么？What is the Wet-Bulb Temperature Calculator (Psychrometric Equation + Stull Formula, with Dew Point) tool?

由气温、相对湿度和气压算湿球温度：用干湿表方程迭代求解（考虑气压），同时给出 Stull（2011）经验公式结果和露点，并按湿球温度提示热应激风险。本地处理。Find the wet-bulb temperature from air temperature, relative humidity and pressure: solved iteratively with the psychrometric equation (pressure included), alongside the Stull (2011) empirical formula and the dew point, with a heat-stress note based on the wet-bulb temperature. Processed locally.

如何使用「湿球温度计算器（干湿表方程 + Stull 公式，含露点）」？How do I use the Wet-Bulb Temperature Calculator (Psychrometric Equation + Stull Formula, with Dew Point) tool?

在「湿球温度计算器（干湿表方程 + Stull 公式，含露点）」中，填写「气温（°C）」、「相对湿度（%）」、「气压（kPa，可选，默认 101.325）」等参数，结果会随输入实时计算并显示在下方。In the Wet-Bulb Temperature Calculator (Psychrometric Equation + Stull Formula, with Dew Point): Fill in "Air temperature (°C)", "Relative humidity (%)", "Pressure (kPa, optional, default 101.325)"; results are recalculated instantly as you type.

湿球温度是什么？What is the wet-bulb temperature?

把温度计球部包上湿布、让空气流过时读到的温度。它反映蒸发散热能力：空气越干，湿球温度比气温低得越多；相对湿度 100% 时两者相等。It is the temperature read by a thermometer with a wet cloth around its bulb in moving air. It reflects how well evaporation can cool: the drier the air, the further it falls below the air temperature; at 100% humidity the two are equal.

为什么有两个结果？Why are there two results?

干湿表方程按物理关系迭代求解并考虑气压，较准确；Stull 公式是海平面气压下的经验拟合，常见误差约 ±0.3 °C。两者接近时可放心使用。The psychrometric equation is solved iteratively from the physics and includes pressure, so it is more accurate; the Stull formula is an empirical fit at sea-level pressure with a typical error of about ±0.3 °C. When they agree you can rely on the value.

能举个计算实例吗？Can you show a worked example?

例如在「湿球温度计算器（干湿表方程 + Stull 公式，含露点）」中填 气温（°C） = 30，相对湿度（%） = 60，结果区显示：湿球温度（干湿表方程）：23.9 °C；湿球温度（Stull 公式）：24 °C；露点：21.38 °C；水汽压：2.546 kPa；热应激：低于 28 °C：一般不构成湿热极端风险For example, entering Air temperature (°C) = 30, Relative humidity (%) = 60 in the Wet-Bulb Temperature Calculator (Psychrometric Equation + Stull Formula, with Dew Point) gives: Wet-bulb temperature (psychrometric): 23.9 °C; Wet-bulb temperature (Stull formula): 24 °C; Dew point: 21.38 °C; Vapour pressure: 2.546 kPa; Heat stress: below 28 °C: usually not an extreme humid-heat risk

哪些输入会被检查？Which inputs are validated?

「湿球温度计算器（干湿表方程 + Stull 公式，含露点）」会检查这些输入——「气温（°C）」：必须填写，须不小于 -40且不大于 60；「相对湿度（%）」：必须填写，须大于 0且不大于 100；「气压（kPa，可选，默认 101.325）」：可留空；填写时须不小于 30且不大于 110；绝对值超过 10¹⁵ 的数也会被拒绝。不符合时结果区显示具体提示，不会给出数字。The Wet-Bulb Temperature Calculator (Psychrometric Equation + Stull Formula, with Dew Point) checks its inputs — "Air temperature (°C)": required, must be at least -40 and at most 60; "Relative humidity (%)": required, must be more than 0 and at most 100; "Pressure (kPa, optional, default 101.325)": optional; if given it must be at least 30 and at most 110; numbers above 10¹⁵ in absolute value are rejected too. When a value fails, the result area names the problem instead of showing a number.

有哪些选项可以调整？What options can I adjust?

「湿球温度计算器（干湿表方程 + Stull 公式，含露点）」的设置：「气温（°C）」默认 30；「相对湿度（%）」默认 60；「气压（kPa，可选，默认 101.325）」可留空。每次生成结果都按当前设置处理。Settings in the Wet-Bulb Temperature Calculator (Psychrometric Equation + Stull Formula, with Dew Point) — "Air temperature (°C)" default 30; "Relative humidity (%)" default 60; "Pressure (kPa, optional, default 101.325)" optional. The result always uses the current settings.

计算结果可以用于作业或工程吗？Can I use the results for homework or engineering?

「湿球温度计算器（干湿表方程 + Stull 公式，含露点）」使用教科书标准公式（公式写在说明和常见问题中），适合学习和估算核对；涉及安全的工程设计请以规范和实测为准。The Wet-Bulb Temperature Calculator (Psychrometric Equation + Stull Formula, with Dew Point) uses standard textbook formulas (given in the description and FAQ), which is good for learning and checking estimates; for safety-critical engineering follow codes and measured values.

「湿球温度计算器（干湿表方程 + Stull 公式，含露点）」免费吗？需要注册吗？Is the Wet-Bulb Temperature Calculator (Psychrometric Equation + Stull Formula, with Dew Point) free? Do I need an account?

「湿球温度计算器（干湿表方程 + Stull 公式，含露点）」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Wet-Bulb Temperature Calculator (Psychrometric Equation + Stull Formula, with Dew Point) is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.