干湿球温度与湿度对照表(1)
干湿球温度/湿度换算表2025303540455055606570758085909510010.02.553.063.584.094.585.075.546.026.496.957.417.868.298.739.169.5910.0011.03.243.784.324.855.375.886.386.877.367.848.318.779.249.6910.1310.5711.0012.03.944.505.065.626.156.687.217.728.238.729.219.7010.1710.6411.1011.5612.0013.04.625.215.796.386.937.498.048.579.099.6110.1210.6211.1211.5912.0712.5413.0014.05.305.926.537.137.728.298.859.429.9610.5011.0211.5412.0512.5513.0513.5214.0015.05.986.627.267.898.509.109.6810.2610.8311.3811.9312.4712.9913.5014.0214.5115.0016.06.647.327.998.649.289.9010.5111.1111.6912.2712.8313.3813.9314.4714.9815.5016.0017.07.318.028.729.3910.0510.7011.3411.9512.5613.1613.7314.3114.8715.4215.9516.4817.0018.07.988.729.4310.1310.8211.5012.1512.8013.4214.0314.6415.2315.8016.3716.9317.4618.0019.08.649.4010.1510.8911.5912.2912.9713.6414.2814.9215.5416.1516.7517.3317.9018.4519.0020.09.3010.0910.8711.6312.3713.0913.7914.4915.1615.8116.4517.0717.6918.2818.8719.4420.0021.09.9510.7811.5912.3813.1413.8914.6115.3316.0216.6917.3517.9918.6219.2419.8420.4321.0022.010.6011.4712.3113.1213.9214.6915.4416.1716.8817.5818.2618.9219.5620.1920.8121.4122.0023.011.2512.1413.0213.8614.6815.4816.2617.0217.7518.4619.1619.8420.5021.1521.7722.4023.0024.011.8912.8313.7314.6115.4616.2817.0817.8618.6119.3520.0620.7621.4422.1122.7523.3924.0025.012.5313.5114.4415.3516.2217.0817.9018.7019.4820.2420.9721.6822.3823.0623.7324.3725.0026.013.1814.1815.1516.0916.9917.8718.7319.5420.3421.1321.8822.6223.3324.0224.7025.3626.0027.013.8214.8615.8316.8417.7618.6719.5520.3921.2122.0122.7923.5324.2624.9825.6726.3527.0028.014.4615.5316.5717.5718.5419.4620.3721.2422.0822.9023.7024.4625.2025.9426.6427.3328.0029.015.1016.2117.2818.3119.3120.2621.2022.0922.9523.7924.6125.3926.1526.9027.6128.3229.0030.015.7316.8817.9919.0520.0821.0722.0222.9423.8224.6825.5126.3127.1027.8528.5829.3030.0031.016.3717.5618.7019.8020.8521.8722.8423.7824.6925.5726.4227.2428.0428.8229.5630.2931.0032.017.0018.2219.4120.5421.6222.6723.6724.6325.5626.4727.3328.1728.9929.7630.5431.2732.0033.017.6318.9020.1221.2822.4023.4724.5025.4826.4327.3528.2429.1029.9330.7331.5132.2733.0034.018.2619.5820.8322.0223.1824.2825.3226.3327.3128.2529.1530.0330.8731.6932.4933.2534.0035.018.9020.2521.5422.7823.9525.0726.1527.1828.1829.1530.0630.9631.8232.6533.4634.2435.0036.019.5320.9222.2523.5224.7325.8826.9828.0429.0630.0430.9831.8932.7733.6134.4335.2336.0037.020.1621.6022.9624.2725.5126.6927.8228.9029.9330.9531.8932.8133.7234.5735.4036.2237.0038.020.7922.2823.6825.0126.2827.4928.6429.7630.8131.8332.8133.7534.6535.5436.3837.2138.0039.021.4222.9524.3925.7627.0728.2929.4930.6131.7932.7333.7234.6835.6136.5037.3638.1939.0040.022.0623.6325.1125.5227.8429.1130.3131.4732.5733.6334.6435.6236.5637.4538.3339.1840.0041.022.6924.3025.8226.7628.6229.9131.1432.3233.4834.5335.5536.5437.5038.4239.3040.1741.0042.023.3324.9826.5427.4229.4030.7131.9733.1834.3635.4236.4737.4738.4539.3840.2841.1642.00干湿球温度表湿度湿球温度干球温度
温湿度(相对湿度)对照表
干湿球温度/湿度换算表
2025303540455055606570758085909510010.02.553.063.584.094.585.075.546.026.496.957.417.868.298.739.169.5910.0011.03.243.784.324.855.375.886.386.877.367.848.318.779.249.6910.1310.5711.0012.03.944.505.065.626.156.687.217.728.238.729.219.7010.1710.6411.1011.5612.0013.04.625.215.796.386.937.498.048.579.099.6110.1210.6211.1211.5912.0712.5413.0014.05.305.926.537.137.728.298.859.429.9610.5011.0211.5412.0512.5513.0513.5214.0015.05.986.627.267.898.509.109.6810.2610.8311.3811.9312.4712.9913.5014.0214.5115.0016.06.647.327.998.649.289.9010.5111.1111.6912.2712.8313.3813.9314.4714.9815.5016.0017.07.318.028.729.3910.0510.7011.3411.9512.5613.1613.7314.3114.8715.4215.9516.4817.0018.07.988.729.4310.1310.8211.5012.1512.8013.4214.0314.6415.2315.8016.3716.9317.4618.0019.08.649.4010.1510.8911.5912.2912.9713.6414.2814.9215.5416.1516.7517.3317.9018.4519.0020.09.3010.0910.8711.6312.3713.0913.7914.4915.1615.8116.4517.0717.6918.2818.8719.4420.0021.09.9510.7811.5912.3813.1413.8914.6115.3316.0216.6917.3517.9918.6219.2419.8420.4321.0022.010.6011.4712.3113.1213.9214.6915.4416.1716.8817.5818.2618.9219.5620.1920.8121.4122.0023.011.2512.1413.0213.8614.6815.4816.2617.0217.7518.4619.1619.8420.5021.1521.7722.4023.0024.011.8912.8313.7314.6115.4616.2817.0817.8618.6119.3520.0620.7621.4422.1122.7523.3924.0025.012.5313.5114.4415.3516.2217.0817.9018.7019.4820.2420.9721.6822.3823.0623.7324.3725.0026.013.1814.1815.1516.0916.9917.8718.7319.5420.3421.1321.8822.6223.3324.0224.7025.3626.0027.013.8214.8615.8316.8417.7618.6719.5520.3921.2122.0122.7923.5324.2624.9825.6726.3527.0028.014.4615.5316.5717.5718.5419.4620.3721.2422.0822.9023.7024.4625.2025.9426.6427.3328.0029.015.1016.2117.2818.3119.3120.2621.2022.0922.9523.7924.6125.3926.1526.9027.6128.3229.0030.015.7316.8817.9919.0520.0821.0722.0222.9423.8224.6825.5126.3127.1027.8528.5829.3030.0031.016.3717.5618.7019.8020.8521.8722.8423.7824.6925.5726.4227.2428.0428.8229.5630.2931.0032.017.0018.2219.4120.5421.6222.6723.6724.6325.5626.4727.3328.1728.9929.7630.5431.2732.0033.017.6318.9020.1221.2822.4023.4724.5025.4826.4327.3528.2429.1029.9330.7331.5132.2733.0034.018.2619.5820.8322.0223.1824.2825.3226.3327.3128.2529.1530.0330.8731.6932.4933.2534.0035.018.9020.2521.5422.7823.9525.0726.1527.1828.1829.1530.0630.9631.8232.6533.4634.2435.0036.019.5320.9222.2523.5224.7325.8826.9828.0429.0630.0430.9831.8932.7733.6134.4335.2336.0037.020.1621.6022.9624.2725.5126.6927.8228.9029.9330.9531.8932.8133.7234.5735.4036.2237.0038.020.7922.2823.6825.0126.2827.4928.6429.7630.8131.8332.8133.7534.6535.5436.3837.2138.0039.021.4222.9524.3925.7627.0728.2929.4930.6131.7932.7333.7234.6835.6136.5037.3638.1939.0040.022.0623.6325.1125.5227.8429.1130.3131.4732.5733.6334.6435.6236.5637.4538.3339.1840.0041.022.6924.3025.8226.7628.6229.9131.1432.3233.4834.5335.5536.5437.5038.4239.3040.1741.00湿度湿球温度
空气温度湿度对照表
单位体积空气中所含水蒸汽的质量，叫做空气的“绝对湿度”。它实际上就是水汽密度。它是大气干湿程度的物理量的一种表示方式。通常以1立方米空气内所含有的水蒸汽的克数来表示。单位为克/立方米或克/立方厘米。水蒸汽的压强是随着水蒸汽的密度的增加而增加的，所以，空气里的绝对湿度的大小也可以通过水汽的压强来表示。由于水蒸汽密度的数值与以毫米高水银柱表示的同温度饱和水蒸汽压强的数值很接近，故也常以水蒸汽的毫米高水银柱的数值来计算空气的干湿程度。
空气中实际所含水蒸汽密度和同温度下饱和水蒸汽密度的百分比值，叫做空气的“相对湿度”。
空气的干湿程度和空气中所含有的水汽量接近饱和的程度有关，而和空气中含有水汽的绝对量却无直接关系。例如，空气中所含有的水汽的压强同样等于1606.24pa（12.79毫米汞柱）时，在炎热的夏天中午，气温约35℃，人们并不感到潮湿，因此时离水汽饱和气压还很远，物体中的水分还能够继续蒸发。而在较冷的秋天，大约15℃左右，人们却会感到潮湿，因这时的水汽压已经达到过饱和，水分不但不能蒸发，而且还要凝结成水，所以我们把空气中实际所含有的水汽的密度ρ1与同温度时饱和水汽密度ρ2的百分比ρ1/ρ2×100％叫做相对湿度。也可以用水汽压强的比来表示
露点温度是指空气在水汽含量和气压都不改变的条件下，冷却到饱和时的温度。形象地说，就是空气中的水蒸气变为露珠时候的温度叫露点温度。露点温度本是个温度值，可为什么用它来表示湿度呢？这是因为，当空气中水汽已达到饱和时，气温与露点温度相同；当水汽未达到饱和时，气温一定高于露点温度。所以露点与气温的差值可以表示空气中的水汽距离饱和的程度。在100%的相对湿度时，周围环境的温度就是露点温度。露点温度越小于周围环境的温度，结露的可能性就越小，也就意味着空气越干燥，露点不受温度影响，但受压力影响。
湿球温度的定义是在定压绝热的情况下，空气与水直接接触，达到稳定热湿平衡时的绝热饱和温度。
温湿度露点对照表之令狐文艳创作
令狐文艳
令狐文艳 环境温度、相对湿度、露点对照表
令狐文艳
相对湿度Ψ（%） 95 90 85 80 75 70 65 60 55 50 45 40 35 30
环境温度Ta（℃） 露 点Td（℃）
10 9.2 8.4 7.6 6.7 5.8 4.8 3.6 2.5 1.5 0 -1.3 -0.3 -5.0 -7.0
11 10.2 9.4 8.6 7.7 6.7 5.8 4.8 3.5 2.5 1.0 -0.5 -2 -4 -6.5
12 11.2 10.9 9.5 8.7 7.7 6.7 5.5 4.4 3.3 2.0 0.5 -1 -3 -5
13 12.2 11.4 10.5 9.6 8.7 7.7 6.6 5.3 4.1 2.8 1.4 -0.2 -2 -4.5
14 13.2 12.4 11.5 10.6 9.6 8.6 7.5 6.4 5.1 3.5 2.2 0.7 -1 -3.2
15 14.2 13.4 12.5 11.6 10.6 9.6 8.4 7.3 6.0 4.6 3.1 1.5 -0.3 -2.3
16 15.2 14.3 13.4 12.6 11.6 10.6 9.5 8.3 7.0 5.6 4.0 2.4 0.5 -1.3
17 16.2 15.3 14.5 13.5 12.5 11.5 10.2 9.2 8.0 6.5 5.0 3.2 1.5 -0.5
18 17.2 16.4 15.4 14.5 13.5 12.5 11.3 10.2 9.0 7.4 5.8 4.0 2.3 0.2
19 18.2 17.3 16.5 15.4 14.5 13.4 12.2 11.0 9.8 8.4 6.8 5.0 3.2 1.0
温湿度露点对照表之欧阳美创编
欧阳美创编 2021.01.01 欧阳美创编 2021.01.01
欧阳美创编 2021.01.01 欧阳美创编 2021.01.01 环境温度、相对湿度、露点对照表
时间：2
相对湿度Ψ（%） 95 90 85 80 75 70 65 60 55 50 45 40 35 30
环境温度Ta（℃） 露 点Td（℃）
10 9.2 8.4 7.6 6.7 5.8 4.8 3.6 2.5 1.5 0 -1.3 -0.3 -5.0 -7.0
11 10.2 9.4 8.6 7.7 6.7 5.8 4.8 3.5 2.5 1.0 -0.5 -2 -4 -6.5
12 11.2 10.9 9.5 8.7 7.7 6.7 5.5 4.4 3.3 2.0 0.5 -1 -3 -5
13 12.2 11.4 10.5 9.6 8.7 7.7 6.6 5.3 4.1 2.8 1.4 -0.2 -2 -4.5
14 13.2 12.4 11.5 10.6 9.6 8.6 7.5 6.4 5.1 3.5 2.2 0.7 -1 -3.2
15 14.2 13.4 12.5 11.6 10.6 9.6 8.4 7.3 6.0 4.6 3.1 1.5 -0.3 -2.3
16 15.2 14.3 13.4 12.6 11.6 10.6 9.5 8.3 7.0 5.6 4.0 2.4 0.5 -1.3
17 16.2 15.3 14.5 13.5 12.5 11.5 10.2 9.2 8.0 6.5 5.0 3.2 1.5 -0.5
不同湿度、风速条件下的体感温度对照表
10日龄干球温度
30%50%70%80%0m/s0.5m/s1.1m/s1.5m/s2m/s2.5m/s
3531.626.123.822.722.2
3532.226.624.423.322.2
38.335.530.528.826.125
4037.231.13027.225.2
32.228.82522.721.620
32.229.125.523.822.721.1
3532.728.827.225.523.3
37.2353027.727.226.1
29.426.123.822.220.519.4
29.426.624.422.821.120
31.63027.225.524.423.3
33.331.628.826.12523.8
26.623.621.620.517.717.7
26.624.422.221.118.918.3
28.326.124.123.320.519.1
29.427.225.523.821.120.5
23.9
23.922.821.12017.716.6
26.12523.822.720.520
21.118.917.717.216.615.5
21.118.918.317.716.616.1
23.320.519.418.818.317.2
24.421.62018.818.818.321.1不同风速下的体感温度不同湿度、风速条件下的体感温度对照表
风冷效应引起的体感温度差异越来越受到重视，这是一把双刃剑。在夏季利用风冷效应来降温，寒冷季节应当减少或避免风冷效应引起的体感温差而发病。为此，在这里我把有关专家提供的的实验结论数据拿出来供大家分享，以期共同进步。相对湿度
35
32.2
29.4
26.6
23.9
温湿度对照表(相对湿度)
20.0021.0022.0023.0024.0025.0026.0010.02.552.652.752.862.963.063.1610.102.622.722.822.933.033.133.2410.202.692.792.893.003.103.203.3110.302.762.862.963.073.173.283.3810.402.832.933.033.143.243.353.4510.502.903.003.113.213.323.423.5310.602.963.073.183.283.393.493.6010.703.033.143.253.353.463.563.6710.803.103.213.323.423.533.643.7410.903.173.283.393.493.603.713.8211.003.243.353.463.563.673.783.8911.103.313.423.533.643.743.853.9611.203.383.493.603.713.823.924.0311.303.453.563.673.783.894.004.1111.403.523.633.743.853.964.074.1811.503.593.703.813.924.034.144.2511.603.663.773.883.994.104.214.3211.703.733.843.954.064.174.284.3911.803.803.914.024.134.244.364.4711.903.873.984.094.204.324.434.5412.003.944.054.164.284.394.504.6112.104.014.124.234.354.464.574.6812.204.084.194.304.424.534.644.7512.304.144.264.374.494.604.714.8312.404.214.334.444.564.674.784.9012.504.284.404.514.634.744.864.9712.604.354.464.584.694.814.935.0412.704.424.534.654.764.885.005.1112.804.484.604.724.834.955.075.1812.904.554.674.794.905.025.145.2513.004.624.744.864.975.095.215.3313.104.694.814.935.045.165.285.4013.204.764.884.995.115.235.355.4713.304.824.945.065.185.305.425.5413.404.895.015.135.255.375.495.6113.504.965.085.205.325.445.575.6813.605.035.155.275.395.515.645.7613.705.105.225.345.465.585.715.8313.805.165.295.415.535.665.785.9013.905.235.365.485.605.735.855.9714.005.305.425.555.675.805.926.0414.105.375.495.625.745.875.996.1114.205.445.565.695.815.946.066.1814.305.505.635.755.886.006.136.2514.405.575.705.825.956.076.206.3214.505.645.775.896.026.146.276.4014.605.715.835.966.096.216.346.4714.705.785.906.036.166.286.416.5414.805.845.976.106.236.356.486.6114.905.916.046.176.296.426.556.6815.005.986.116.246.366.496.626.7515.106.056.176.306.436.566.696.8215.206.116.246.376.506.636.766.89湿球温度干球温度湿度15.306.186.316.446.576.706.836.9615.406.246.386.516.646.776.907.0315.506.316.446.576.716.846.977.1015.606.386.516.646.776.917.047.1715.706.446.586.716.846.987.117.2415.806.516.646.786.917.057.187.3115.906.576.716.846.987.117.257.3816.006.646.786.917.057.187.327.4516.106.716.846.987.127.257.397.5216.206.776.917.057.197.327.467.6016.306.846.987.127.257.397.537.6716.406.917.057.187.327.467.607.7416.506.987.117.257.397.537.677.8116.607.047.187.327.467.607.747.8816.707.117.257.397.537.677.817.9516.807.187.327.467.607.747.888.0216.907.247.387.537.677.817.958.0917.007.317.457.597.747.888.028.1617.107.387.527.667.807.958.098.2317.207.447.597.737.878.028.168.3017.307.517.657.807.948.098.238.3717.407.587.727.878.018.168.308.4417.507.657.797.948.088.238.378.5117.607.717.868.008.158.298.448.5817.707.787.938.078.228.368.518.6517.807.857.998.148.298.438.588.7217.907.918.068.218.368.508.658.7918.007.988.138.288.428.578.728.8618.108.058.198.348.498.648.798.9318.208.118.268.418.568.718.869.0018.308.188.338.488.638.778.929.0718.408.248.398.548.698.848.999.1418.508.318.468.618.768.919.069.2118.608.388.538.688.838.989.139.2718.708.448.598.748.899.059.209.3418.808.518.668.818.969.119.269.4118.908.578.738.889.039.189.339.4819.008.648.798.949.109.259.409.5519.108.718.869.019.169.329.479.6219.208.778.939.089.239.389.549.6919.308.848.999.159.309.459.619.7619.408.909.069.219.379.529.689.8319.508.979.139.289.449.599.759.9019.609.049.199.359.509.669.819.9719.709.109.269.419.579.739.8810.0419.809.179.329.489.649.809.9510.1119.909.239.399.559.719.8610.0210.1820.009.309.469.629.779.9310.0910.2520.109.379.529.689.8410.0010.1610.3220.209.439.599.759.9110.0710.2310.3920.309.509.669.829.9810.1410.3010.4520.409.569.729.8810.0410.2010.3710.5220.509.639.799.9510.1110.2710.4410.5920.609.699.8510.0210.1810.3410.5010.6620.709.769.9210.0810.2510.4110.5710.7320.809.829.9810.1510.3110.4810.6410.8020.909.8910.0510.2210.3810.5510.7110.8721.009.9510.1210.2810.4510.6110.7810.9421.1010.0210.1810.3510.5210.6810.8511.0121.2010.0810.2510.4210.5810.7510.9211.0821.3010.1510.3110.4810.6510.8210.9911.1521.4010.2110.3810.5510.7210.8911.0611.2221.5010.2810.4510.6210.7910.9611.1311.2921.6010.3410.5110.6810.8511.0211.1911.3621.7010.4110.5810.7510.9211.0911.2611.4321.8010.4710.6410.8110.9911.1611.3311.5021.9010.5410.7110.8811.0511.2311.4011.5722.0010.6010.7710.9511.1211.3011.4711.6422.1010.6710.8411.0111.1911.3611.5411.7122.2010.7310.9011.0811.2511.4311.6011.7722.3010.8010.9711.1511.3211.5011.6711.8422.4010.8611.0411.2111.3911.5611.7411.9122.5010.9311.1011.2811.4511.6311.8111.9822.6010.9911.1711.3411.5211.7011.8712.0422.7011.0611.2311.4111.5911.7611.9412.1122.8011.1211.3011.4711.6511.8312.0112.1822.9011.1911.3611.5411.7211.9012.0712.2523.0011.2511.4311.6111.7811.9612.1412.3223.1011.3111.4911.6711.8512.0312.2112.3923.2011.3811.5611.7411.9212.1012.2812.4523.3011.4411.6211.8011.9912.1712.3512.5223.4011.5111.6911.8712.0512.2312.4212.5923.5011.5711.7511.9412.1212.3012.4912.6623.6011.6311.8212.0012.1912.3712.5512.7323.7011.7011.8812.0712.2512.4412.6212.8023.8011.7611.9512.1312.3212.5112.6912.8723.9011.8312.0112.2012.3912.5712.7612.9424.0011.8912.0812.2712.4512.6412.8313.0124.1011.9512.1412.3312.5212.7112.9013.0824.2012.0212.2112.4012.5912.7812.9713.1524.3012.0812.2712.4612.6512.8413.0313.2224.4012.1512.3412.5312.7212.9113.1013.2824.5012.2112.4012.5912.7912.9813.1713.3524.6012.2712.4712.6612.8513.0513.2413.4224.7012.3412.5312.7312.9213.1113.3113.4924.8012.4012.6012.7912.9913.1813.3713.5624.9012.4712.6612.8613.0513.2513.4413.6325.0012.5312.7312.9213.1213.3113.5113.7025.1012.6012.7912.9913.1813.3813.5813.7625.2012.6612.8613.0513.2513.4513.6413.8325.3012.7312.9213.1213.3213.5113.7113.9025.4012.7912.9913.1913.3813.5813.7813.9725.5012.8613.0513.2513.4513.6513.8514.0425.6012.9213.1213.3213.5213.7113.9114.1025.7012.9913.1813.3813.5813.7813.9814.1725.8013.0513.2513.4513.6513.8514.0514.2425.9013.1213.3113.5113.7113.9114.1114.3126.0013.1813.3813.5813.7813.9814.1814.3726.1013.2413.4413.6513.8514.0514.2514.4426.2013.3113.5113.7113.9114.1114.3214.5126.3013.3713.5713.7813.9814.1814.3814.5826.4013.4413.6413.8414.0514.2514.4514.65
湿度对照表
D/T-W/T00.511.522.533.544.555.566.57
D/TRHDPRHDPRHDPRHDPRHDPRHDPRHDPRHDPRHDPRHDPRHDPRHDPRHDPRHDPRH
-5.595-683-872-1061-1250-1440-1729-2119-268-34
-595-684-773-963-1152-1542-1631-1921-2411-31
-4.596-585-774-864-1053-1343-1533-1823-2213-284-41
-496-586-675-865-1055-1245-1436-1725-2116-266-30
-3.597-486-576-766-956-1147-1337-1628-2018-249-32
-397-387-577-667-858-1048-1239-1530-1820-2311-29
-2.598-388-478-668-859-950-1241-1432-1723-2114-273-37
-298-288-479-570-760-951-1142-1333-1625-2016-245-32
-1.599-289-380-571-662-853-1044-1235-1527-1818-238-29
-199-190-381-472-661-754-946-1137-1429-1721-2110-26
-0.5100-190-281-373-564-756-647-1039-1331-1623-1913-24
0100091-182-374-465-657-849-1041-1233-1525-1817-22
0.5100091183-275-366-558-750-842-1134-1327-1619-20
1100191083-275-368-460-652-844-1036-1229-1521-19
1.5100192083-175-269-461-553-745-938-1131-1423-17
干湿球法测量湿度计算公式
干湿球法测量湿度计算公式
水蒸气压和相对湿度的计算公式
要求水蒸气压和相对湿度时，虽然最好用通风乾湿计，但也可采用不通风乾湿计。由乾湿计计算水蒸气压和相对湿度的公式为： 1. 从通风乾湿计的度数计算水蒸气压：
（1）湿球不结冰时
e =E’w–0.5(t-t’)P/755
（2）湿球结冰时 e =E’i –0.44(t-t’)P/755
式中， t:乾球读数(ºC)
t’：湿球读数(ºC)
E’w：t’(ºC)的水饱和蒸气压
E’i：t’(ºC)的冰饱和蒸气压
e：所求水蒸气压
P：大气压力
2. 从不通风乾湿计的度数计算水蒸气压：
（1）湿球不结冰时 e=E’ w-0.0008P(t-t’)
(2)湿球结冰时
e=E’ i-0.0007P(t-t’)
此处所用符号的意义同上。压力单位都统一用mmHg或mb。 3． 求相对湿度：
H=e/Ew×100
式中H为所求相对湿度（％），Ew为t(ºC)的饱和蒸气压（即使在0ºC以下时也不使
用Ei）。
干湿球湿度计
又叫干湿计。利用水蒸发要吸热降温，而蒸发的快慢（即降温的多少）是和当时空气的相对湿度有关这一
原理制成的。其构造是用两支温度计，其一在球部用白纱布包好，将纱布另一端浸在水槽里，即由毛细作
用使纱布经常保持潮湿，此即湿球。另一未用纱布包而露置于空气中的温度计，谓之干球（干球即表示气
温的温度）。如果空气中水蒸汽量没饱和，湿球的表面便不断地蒸发水汽，并吸取汽化热，因此湿球所表
示的温度都比干球所示要低。空气越干燥（即湿度越低），蒸发越快，不断地吸取汽化热，使湿球所示的温度降低，而与干球间的差增大。相反，当空气中的水蒸汽量呈饱和状态时，水便不再蒸发，也不吸取汽
化热，湿球和干球所示的温度，即会相等。使用时，应将干湿计放置距地面1.2～1.5米的高处。读出干、
湿两球所指示的温度差，由该湿度计所附的对照表就可查出当时空气的相对湿度。因为湿球所包之纱布水
温湿度露点对照表之欧阳家百创编
欧阳家百创编
欧阳家百创编 环境温度、相对湿度、露点对照表
欧阳家百（2021.03.07）
相对湿度Ψ（%） 95 90 85 80 75 70 65 60 55 50 45 40 35 30
环境温度Ta（℃） 露 点Td（℃）
10 9.2 8.4 7.6 6.7 5.8 4.8 3.6 2.5 1.5 0 1.3 0.3 5.0 7.0
11 10.2 9.4 8.6 7.7 6.7 5.8 4.8 3.5 2.5 1.0 0.5 2 4 6.5
12 11.2 10.9 9.5 8.7 7.7 6.7 5.5 4.4 3.3 2.0 0.5 1 3 5
13 12.2 11.4 10.5 9.6 8.7 7.7 6.6 5.3 4.1 2.8 1.4 0.2 2 4.5
14 13.2 12.4 11.5 10.6 9.6 8.6 7.5 6.4 5.1 3.5 2.2 0.7 1 3.2
15 14.2 13.4 12.5 11.6 10.6 9.6 8.4 7.3 6.0 4.6 3.1 1.5 0.3 2.3
16 15.2 14.3 13.4 12.6 11.6 10.6 9.5 8.3 7.0 5.6 4.0 2.4 0.5 1.3
17 16.2 15.3 14.5 13.5 12.5 11.5 10.2 9.2 8.0 6.5 5.0 3.2 1.5 0.5
18 17.2 16.4 15.4 14.5 13.5 12.5 11.3 10.2 9.0 7.4 5.8 4.0 2.3 0.2
19 18.2 17.3 16.5 15.4 14.5 13.4 12.2 11.0 9.8 8.4 6.8 5.0 3.2 1.0
平衡含水率对照表
相对湿度%干球温度℃1.42.63.74.65.56.37.17.98.79.510.411.312.413.514.916.518.521.024.326.91.42.63.74.65.56.37.17.98.79.510.411.312.313.514.916.518.521.024.326.91.42.63.64.65.56.37.17.98.79.510.311.212.313.414.816.418.420.924.326.91.62.53.64.65.46.27.07.88.69.410.211.112.113.314.616.218.220.724.126.81.32.53.54.55.46.26.97.78.59.210.111.01213.114.41617.920.523.926.61.32.43.54.45.36.16.87.48.39.19.910.811.712.914.215.717.720.223.626.31.22.33.44.35.15.96.77.48.18.99.710.511.512.613.915.417.319.823.326.01.22.33.34.25.05.86.57.27.98.79.510.312.012.313.615.117.019.522.925.61.12.23.244.95.66.37.07.78.49.210.010.012.013.214.716.619.122.425.232℃16℃﹣1℃平 衡 含 水 率 对 照 表2090
43℃81015
37℃4.5℃10℃21℃4550253035
1、木材含水率与家具制造地（使用地）环境平衡含水率等同的环境下，不会产生木材的伸缩性，（否则会导致材料/结构变形/开裂/伸缩不平整）因此环境平衡含水率与木材平衡含水率差:±3%。2、出口家具的美国环境含水率（平均）：9%（最低6%、最高11%），因此制造时保证a:木材进厂：≤9%，b:各恒温房平衡含水率：备料：8%--9%，加工：8%--9%，装配：9%--10%。品 管 部说明：9598707580