2026固定源烟气流速（量）参比方法校准结果的测量不确定度评定

I固定源烟气流速（量）参比方法用S型皮托管校准结果的测量不确定度评定1.测量方法在规范规定的校准条件下，将被校S型皮托管安装在标准流量装置实验段中，以标准流量计的值为参考标准，在标准流量装置中用比较法对流量计进行校准，具体实验步骤件参考本规范第七节中的校准方法。2不确定分析2.1数学模型其中：——俯仰角为α偏航角为β第i校准点第j次校准的示值误差；——被校皮托管的示值，m/s；——标准速度值，m/s；根据不确定度传播规律可得出：或C.2.2灵敏系数根据JJF1059.1《不确定度评定与表示》中4.4.2.3中的模型进行评定，则2.3校准数据以某参比方法用S型皮托管的校准为例为例，进行实验室校准。将S型皮托管安装在风洞坐标架上，调整S型皮托管与风洞轴线垂直，气流流动方向与S型皮托管标识方向一致。表1充分发展流场超声流量计校准数据校准地点烟气流量实验室校准时间/标准值（m/s）5温度（℃）33湿度（%RH）48密度1.12kg/m3S皮托管原校准系数0.80其它大气压：99.924kPa校准位置俯仰角（°）偏航角（°）被校皮托管值（Pa）标准风速（m/s）£或标准皮托管值（Pa）R1231231-45-455.225.185.0914.3114.2614.132-40-407.087.036.9414.2714.0914.193-35-359.068.989.0014.3114.1214.284-30-3011.2611.2311.2314.3614.2214.305-25-2513.4113.2913.2514.2214.0714.116-20-2015.0915.0115.0514.2114.1414.167-15-1517.1316.9717.1114.1814.0314.028-10-1020.7420.6520.5514.1213.9614.029-5-520.5720.4020.5014.1414.0213.98100021.5821.5221.4714.2714.2214.19115521.4321.4221.3014.1714.0614.1012101021.5521.4521.3714.114.0813.9613151523.4823.4723.3714.1514.0114.0914202024.4824.3124.4014.1714.0514.0315252524.3624.2824.2314.2314.0414.1416303022.4622.3022.4514.2414.1514.1217353521.0420.9520.9914.0413.9313.9518404024.3924.2224.2514.1914.0214.0019454526.9326.7526.9214.1514.0614.0720-45455.675.575.6514.414.3414.2721-40406.856.686.8314.4114.4014.3922-35358.758.708.5514.3914.1914.3323-303011.3011.2811.1414.4114.3814.3824-252513.2413.1413.1214.1413.9514.0225-202015.1515.1114.9614.2714.0814.1526-151516.6416.6316.5714.1213.9914.0327-101021.0420.9420.9414.1914.0714.1728-5520.6820.6220.6514.2614.2214.11290021.5821.5421.5414.2714.2414.18305-521.3221.2021.2914.214.1014.133110-1021.7821.7221.6214.1413.9813.993215-1523.4223.2923.2514.1714.0613.993320-2023.7923.7223.7614.1114.0314.083425-2523.2823.1923.2014.0913.9613.933530-3022.7422.6522.6114.1814.0614.093635-3523.8823.8623.7114.0513.9814.043740-4028.5328.4728.5214.1714.0514.073845-4527.8827.8027.6814.1914.0014.1139-45018.7518.6018.7114.1414.0414.0440-40020.6220.5520.4314.1714.0414.0941-35020.7320.6220.5814.1214.1114.0142-30021.2621.1321.2014.1413.9914.0343-25021.9221.9021.7414.1914.1714.0644-20021.1320.9921.0514.2514.1114.2345-15021.1420.9821.1214.1714.1414.0746-10021.3921.3121.2514.1714.1114.0247-5021.5121.3121.4714.114.0613.96480021.5821.4221.4614.2714.2314.26495020.5620.4820.5514.2814.0914.265010020.9020.8320.8214.2114.0614.125115018.0117.8317.8614.2414.0614.215220015.2815.1615.1914.214.0914.195325014.1714.1314.0814.2414.0414.105430013.6113.4913.6014.4414.3414.375535013.3513.3013.3214.4414.2514.305640012.6212.4812.5114.414.3414.22574509.899.829.8214.3914.2114.22580-4517.0116.8516.8614.2314.1914.16590-4018.6018.4618.5814.0914.0113.91600-3519.5819.5119.5314.1414.0914.08610-3020.9320.7720.8414.1514.0914.14620-2521.3421.1721.1714.1614.1213.99630-2021.3921.3021.3414.1814.1714.03640-1521.2221.0721.0914.1114.0314.03650-1021.1421.0920.9514.1914.1014.16660-521.0420.8920.8514.1614.1214.15670021.5821.4421.5014.2714.0914.18680520.9220.8620.7614.1514.0714.116901021.0720.8820.9814.1414.0214.107001521.9721.8821.9014.2414.1314.207102021.6721.4921.6414.1314.1213.967202521.7021.6921.6914.214.1514.047303020.9920.9620.8014.214.0614.127403520.1019.9119.9614.2814.1414.167504018.9718.9618.7814.1513.9813.987604517.3017.1917.1114.1614.1514.09输入量的标准不确定度评定不确定度分量包括测量重复性引入的不确定度，标准装置溯源引入的不确定度。2.3.1标准器溯源引入的不确定度标准器L型皮托管不确定度为0.41%，k=2，则2.3.2标准皮托管测量重复性引入的不确定度标准皮托管测得值如表1所示，采用极差法计算重复型，并取最大值为器测量重复性。由测量重复性引入的不确定度见表C.2为2.3.3标准器不确定度2.4被校皮托管引入的不确定度被校皮托管主要由测量重复性引入的不确定度，见表C.2中表2各点由重复性引入的相对不确定度标准皮托管压力值（Pa）标准风速值（m/s）重复性相对不确定度S型皮托管压力值（Pa）S型皮托管测量值（m/s）重复性相对不确定度12312312312314.3114.2614.135.065.055.020.020.22%5.225.185.092.442.432.410.020.42%14.2714.0914.195.055.025.030.020.22%7.087.036.942.842.832.820.020.35%14.3114.1214.285.065.025.050.020.23%9.068.989.003.223.203.210.010.16%14.3614.2214.305.065.045.050.010.17%11.2611.2311.233.593.583.580.000.05%14.2214.0714.115.045.015.020.020.18%13.4113.2913.253.913.903.890.010.21%14.2114.1414.165.045.025.030.010.09%15.0915.0115.054.154.144.150.010.09%14.1814.0314.025.035.005.000.020.19%17.1316.9717.114.424.404.420.010.16%14.1213.9614.025.024.995.000.020.20%20.7420.6520.554.874.864.850.010.15%14.1414.0213.985.025.005.000.020.20%20.5720.4020.504.854.834.840.010.14%14.2714.2214.195.055.045.030.010.09%21.5821.5221.474.974.964.950.010.09%14.1714.0614.105.035.015.020.010.13%21.4321.4221.304.954.954.930.010.11%14.1014.0813.965.025.014.990.010.17%21.5521.4521.374.964.954.940.010.14%14.1514.0114.095.035.005.020.010.17%23.4823.4723.375.185.185.170.010.08%14.1714.0514.035.035.015.010.010.17%24.4824.3124.405.295.275.280.010.12%14.2314.0414.145.045.015.020.020.24%24.3624.2824.235.285.275.260.010.09%14.2414.1514.125.045.035.020.010.15%22.4622.3022.455.075.055.070.010.12%14.0413.9313.955.014.994.990.010.14%21.0420.9520.994.904.894.900.010.08%14.1914.0214.005.035.005.000.020.23%24.3924.2224.255.285.265.260.010.12%14.1514.0614.075.035.015.010.010.10%26.9326.7526.925.555.535.550.010.12%14.4014.3414.275.075.065.050.010.15%5.675.575.652.552.522.540.010.30%14.4114.4014.395.075.075.070.000.03%6.856.686.832.802.762.790.020.43%14.3914.1914.335.075.035.060.020.23%8.758.708.553.163.153.130.020.39%14.4114.3814.385.075.075.070.000.03%11.3011.2811.143.593.593.570.020.25%14.1413.9514.025.024.995.000.020.24%13.2413.1413.123.893.883.870.010.15%14.2714.0814.155.055.015.030.020.23%15.1515.1114.964.164.164.140.020.21%14.1213.9914.035.025.005.010.010.16%16.6416.6316.574.364.364.350.010.08%14.1914.0714.175.035.015.030.010.15%21.0420.9420.944.904.894.890.010.08%14.2614.2214.115.055.045.020.020.18%20.6820.6220.654.864.854.860.000.05%14.2714.2414.185.055.045.030.010.10%21.5821.5421.544.974.964.960.000.04%14.2014.1014.135.045.025.020.010.12%21.3221.2021.294.944.924.930.010.10%14.1413.9813.995.025.005.000.020.19%21.7821.7221.624.994.984.970.010.13%14.1714.0613.995.035.015.000.020.22%23.4223.2923.255.175.165.160.010.12%14.1114.0314.085.025.015.010.010.09%23.7923.7223.765.215.215.210.000.05%14.0913.9613.935.024.994.990.020.20%23.2823.1923.205.165.155.150.010.07%14.1814.0614.095.035.015.020.010.15%22.7422.6522.615.105.095.080.010.10%14.0513.9814.045.015.005.010.010.09%23.8823.8623.715.225.225.210.010.12%14.1714.0514.075.035.015.010.010.14%28.5328.4728.525.715.705.710.000.04%14.1914.0014.115.035.005.020.020.23%27.8827.8027.685.645.645.620.010.12%14.1414.0414.045.025.015.010.010.12%18.7518.6018.714.634.614.620.010.14%14.1714.0414.095.035.015.020.010.16%20.6220.5520.434.854.854.830.010.16%14.1214.1114.015.025.025.000.010.14%20.7320.6220.584.874.854.850.010.13%14.1413.9914.035.025.005.010.020.18%21.2621.1321.204.934.914.920.010.11%14.1914.1714.065.035.035.010.010.15%21.9221.9021.745.015.004.980.010.14%14.2514.1114.235.045.025.040.010.17%21.1320.9921.054.914.904.900.010.12%14.1714.1414.075.035.035.010.010.12%21.1420.9821.124.924.904.910.010.13%14.1714.1114.025.035.025.000.020.18%21.3921.3121.254.944.944.930.010.11%14.1014.0613.965.025.014.990.020.18%21.5121.3121.474.964.944.950.010.16%14.2714.2314.265.055.045.050.000.05%21.5821.4221.464.974.954.950.010.13%14.2814.0914.265.055.025.050.020.22%20.5620.4820.554.854.844.850.010.06%14.2114.0614.125.045.015.020.020.18%20.9020.8320.824.894.884.880.010.06%14.2414.0614.215.045.015.040.020.21%18.0117.8317.864.544.514.520.010.17%14.2014.0914.195.045.025.030.010.14%15.2815.1615.194.184.164.170.010.14%14.2414.0414.105.045.015.020.020.24%14.1714.1314.084.024.024.010.010.11%14.4414.3414.375.085.065.070.010.11%13.6113.4913.603.943.933.940.010.16%14.4414.2514.305.085.045.050.020.22%13.3513.3013.323.913.903.900.000.06%14.4014.3414.225.075.065.040.020.21%12.6212.4812.513.803.783.780.010.18%14.3914.2114.225.075.045.040.020.21%9.899.829.823.363.353.350.010.12%14.2314.1914.165.045.035.030.010.09%17.0116.8516.864.414.394.390.010.16%14.0914.0113.915.025.004.980.020.22%18.6018.4618.584.614.594.610.010.13%14.1414.0914.085.025.025.010.010.07%19.5819.5119.534.734.724.720.000.06%14.1514.0914.145.035.025.020.010.07%20.9320.7720.844.894.874.880.010.13%14.1614.1213.995.035.025.000.020.21%21.3421.1721.174.944.924.920.010.14%14.1814.1714.035.035.035.010.020.18%21.3921.3021.344.944.934.940.010.07%14.1114.0314.035.025.005.010.010.10%21.2221.0721.094.924.914.910.010.12%14.1914.1014.165.035.025.030.010.11%21.1421.0920.954.924.914.890.010.16%14.1614.1214.155.035.025.030.000.04%21.0420.8920.854.904.894.880.010.16%14.2714.0914.18