CORRECTION OF BAROMETER READINGS TO 0°C TEMPERATURE
The following corrections are ud to reduce the reading of a mercury barometer with a brass scale to 0°C. The number in the table should be subtracted from the obrved height of the mercury column to give the true pressure in mmHg (1mmHg = 133.322 Pa). The table is calculated from the formula
造价师网
搭档 英语∆h = -0.0001634 ht/(1+0.0001818 t),
almondwhere h is the obrved column height in mm and t the Celsius temperature. This relation is bad on thermal expansion coefficients of 181.8·10-6°C-1 for mercury and 18.4·10-6°C-1 for brass.
left out
Obrved Height in mm何川洋
t/°C620630640650660670680690700710720730740750760770780790800
00.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.00 10.100.100.100.110.110.110.110.110.110.120.120.120.120.120.120.130.130.130.13 20.200.210.210.210.220.220.220.230.230.230.240.240.240.250.250.250.250.260.26 30.300.310.310.320.320.330.330.340.340.350.350.360.360.370.370.380.380.390.39 40.400.410.420.420.430.440.440.450.460.460.470.480.480.490.500.500.510.520.52 50.510.510.520.5discuss
30.540.550.560.560.570.580.590.600.600.610.620.630.640.640.65 60.610.620.630.640.650.660.670.680.690.700.710.710.720.730.740.750.760.770.78 70.710.720.730.740.750.770.780.790.800.810.820.830.850.860.870.880.890.900.91 80.810.820.840.850.860.870.890.900.910.930.940.950.970.980.99 1.01 1.02 1.03 1.04 90.910.920.940.950.970.98 1.00 1.01 1.03 1.04 1.06 1.07 1.09 1.10 1.12 1.13 1.15 1.16 1.17
10 1.01 1.03 1.04 1.06 1.08 1.09 1.11 1.13 1.14 1.16 1.17 1.19 1.21 1.22 1.24 1.26 1.27 1.29 1.30
11 1.11 1.13 1.15 1.17 1.18 1.20 1.22 1.24 1.26 1.27 1.29 1.31 1.33 1.35 1.36 1.38 1.40 1.42 1.44
12 1.21 1.23 1.25 1.27 1.29 1.31 1.33 1.35 1.37 1.39 1.41 1.43 1.45 1.47 1.49 1.51 1.53 1.55 1.57
13 1.31 1.34 1.36 1.38 1.40 1.42 1.44 1.46 1.48 1.50 1.53 1.55 1.57 1.59 1.61 1.63 1.65 1.67 1.70
野合14 1.41 1.44 1.46 1.48 1.51 1.53 1.55 1.57 1.60 1.62 1.64 1.67 1.69 1.71 1.73 1.76 1.78 1.80 1.83
15 1.52 1.54 1.56 1.59 1.61 1.64 1.66 1.69 1.71 1.74 1.76 1.78 1.81 1.83 1.86 1.88 1.91 1.93 1.96
16 1.62 1.64 1.67 1.69 1.72 1.75 1.77 1.80 1.82 1.85 1.88 1.90 1.93 1.96 1.98 2.01 2.03 2.06 2.09
17 1.72 1.74 1.77 1.80 1.83 1.86 1.88 1.91 1.94 1.97 1.99 2.02 2.05 2.08 2.10 2.13 2.16 2.19 2.22
18 1.82 1.85 1.88 1.91 1.93 1.96 1.99 2.02 2.05 2.08 2.11 2.14 2.17 2.20 2.23 2.26 2.29 2.32 2.35
19 1.92 1.95 1.98 2.01 2.04 2.07 2.10 2.13 2.17 2.20 2.23 2.26 2.29 2.32 2.35 2.38 2.41 2.44 2.48
20 2.02 2.05 2.08 2.12 2.15 2.18 2.21 2.25 2.28 2.31 2.34 2.38 2.41 2.44 2.47 2.51 2.54 2.57 2.60
21 2.12 2.15 2.19 2.22 2.26 2.29 2.32 2.36 2.39 2.43 2.46 2.50 2.53 2.56 2.60 2.63 2.67 2.70 2.73
22 2.22 2.26 2.29 2.33 2.36 2.40 2.43 2.47 2.51 2.54 2.58 2.61 2.65 2.69 2.72 2.76 2.79 2.83 2.86
23 2.32 2.36 2.40 2.43 2.47 2.51 2.54 2.58 2.62 2.66 2.69 2.73 2.77 2.81 2.84 2.88 2.92 2.96 2.99
24 2.42 2.46 2.50 2.54 2.58 2.62 2.66 2.69 2.73 2.77 2.81 2.85 2.89 2.93 2.97 3.01 3.05 3.08 3.12
翻译英语怎么说25 2.52 2.56 2.60 2.64 2.68 2.72 2.77 2.81 2.85 2.89 2.93 2.97 3.01 3.05 3.09 3.13 3.17 3.21 3.25
26 2.62 2.66 2.71 2.75 2.79 2.83 2.88 2.92 2.96 3.00 3.04 3.09 3.13 3.17 3.21 3.26 3.30 3.34 3.38
27 2.72 2.77 2.81 2.85 2.90 2.94 2.99 3.03 3.07 3.12 3.16 3.20 3.25 3.29 3.34 3.38 3.42 3.47 3.51
28 2.82 2.87 2.91 2.96 3.00 3.05 3.10 3.14 3.19 3.23 3.28 3.32 3.37 3.41 3.46 3.51 3.55 3.60 3.64
29 2.92 2.97 3.02 3.06 3.11 3.16 3.21 3.25 3.30 3.35 3.39 3.44 3.49 3.54 3.58 3.63 3.68 3.72 3.77
30 3.02 3.07 3.12 3.17 3.22 3.27 3.32 3.36 3.41 3.46 3.51 3.56 3.61 3.66 3.71 3.75 3.80 3.85 3.90
tuesday的音标31 3.12 3.17 3.22 3.27 3.32 3.37 3.43 3.48 3.53 3.58 3.63 3.68 3.73 3.78 3.83 3.88 3.93 3.98 4.03
32 3.22 3.28 3.33 3.38 3.43 3.48 3.54 3.59 3.64 3.69 3.74 3.79 3.85 3.90 3.95 4.00 4.05 4.11 4.16
33 3.32 3.38 3.43 3.48 3.54 3.59 3.64 3.70 3.75 3.81 3.86 3.91 3.97 4.02 4.07 4.13 4.18 4.23 4.29
34 3.42 3.48 3.53 3.59 3.64 3.70 3.75 3.81 3.87 3.92 3.98 4.03 4.09 4.14 4.20 4.25 4.31 4.36 4.42
destro
35 3.52 3.58 3.64 3.69 3.75 3.81 3.86 3.92 3.98 4.03 4.09 4.15 4.21 4.26 4.32 4.38 4.43 4.49 4.55
36 3.62 3.68 3.74 3.80 3.86 3.92 3.97 4.03 4.09 4.15 4.21 4.27 4.32 4.38 4.44 4.50 4.56 4.62 4.68
37 3.72 3.78 3.84 3.90 3.96 4.02 4.08 4.14 4.20 4.26 4.32 4.38 4.44 4.50 4.56 4.62 4.68 4.74 4.80
38 3.82 3.88 3.95 4.01 4.07 4.13 4.19 4.25 4.32 4.38 4.44 4.50 4.56 4.62 4.69 4.75 4.81 4.87 4.93
39 3.92 3.99 4.05 4.11 4.18 4.24 4.30 4.37 4.43 4.49 4.56 4.62 4.68 4.75 4.81 4.87 4.94 5.00 5.06
40 4.02 4.09 4.15 4.22 4.28 4.35 4.41 4.48 4.54 4.61 4.67 4.74 4.80 4.87 4.93 5.00 5.06 5.13 5.19
15-23
