JJF(陕) 035-2020 雨滴谱式降水现象仪现场校准规范

陕西省地方计量技术规范FieldCalibrationSpecificationofRaindropSpectralPrecipitationPhenomeno2020－11－16发布陕西省市场监督管理局发布JJF(陕)035-2020FieldCalibrationSpecificationofRaindropSpectralPrecipitationPhenomenonInJJF(陕)035－2020JJF(陕)035－2020 (II) (1)2引用文件 (1)3术语 (1) (1)3.2自动观测的降水现象 ()4概述 ()5计量特性 (2)‘校准条件 (2)6.1环境条件 (2)6.2测量标准及其他设备 (2)7校准项日和校准方法 (3)7.1降水粒子等效粒径示值误差 (3)7.2降水粒子速度示值误差 (3)8校准结果的表达 (3)9复校时间间隔 (4)附录A降水粒子等效粒径示值误差的不确定度评定示例 (5)附录B降水粒子速度示值误差的不确定度评定示例 (10)附录C校准记录格式… (15)附录D校准证书内页格式… (17)JJF(陕)035-2020JJF1071-2010《国家计量校准规范编写规则》、JJF10本规范参考了GB/T37467-2019《气象仪器术语》的部分内容，并结合雨滴谱式降水现象仪实际生产和使用情况，对其具体技术指标和校JJF(陕)035－20201雨滴谱式降水现象仪现场校准规范3.2自动观测的降水现象automaticobservationofprecipitationphenom(a)(b)图1降水现象仪的结构示意图JJF(陕)035-20202(a)—设备实物图(b)—激光示意图激光发射装置激光发射装置激光接收装置温控装置雨滴谱仪数据采集器处理单元图2降水现象仪组成结构图表1降水现象仪计量特性计量特性技术指标降水粒子等效粒径示值误差±0.4mm降水粒子速度示值误差±0.2m/s注：以上技术指标不用于合格性判别，仅供参考。表2测量标准主要技术指标测量标准名称主要技术指标降水模拟标准装置粒子等效粒径范围：2.1mm~21mm，等效粒径误差：±0.06mm粒子速度范围：0.6m/s~16m/s，速度误差：±0.03m/sJJF(陕)035－20203校准点的选择：降水粒子等效粒径一般选择包含降水现象仪下Ad=d-ds（1）ad——各校准点等效粒径示值误差，mm；d:——各校准点等效粒径标准值，mm。（2）——各校准点速度平均值，m/s；JJF(陕)035-20204JJF(陕)035－20205Ad=d-d,（A.1）ad——各校准点等效粒径示值误差，mm；d:——各校准点等效粒径标准值，mm。A类不确定度来源于仪器测量的重复性，可通过连续测量得到，用A类方法评定。本次测6JJF(JJF(陕)035-2020表A.1降水粒子等效粒径示值误差试验结果示值误差（mm）0.200.200.200.20等效粒径校准值（mm）平均值2.562.572.562.564.494.494.494.499.669.669.669.66示值2.562.572.562.564.484.484.494.489.669.669.679.66示值2.562.572.562.574.484.504.504.499.669.669.669.66示值2.562.562.572.574.484.504.504.489.679.669.669.67示值2.572.572.562.564.494.484.484.509.669.669.669.66示值2.572.572.562.564.484.494.494.499.669.669.679.66示值2.562.562.572.564.504.484.504.509.669.669.669.66第4次示值2.562.562.572.564.504.484.484.489.669.679.669.67示值2.562.572.562.564.484.484.484.499.669.669.669.66第2次示值2.572.562.562.564.494.494.484.509.669.669.679.66示值2.562.562.562.564.484.484.494.489.679.669.669.66标准值粒子速度（m/s）3.396.993.396.993.396.993.39等效粒径（mm）2.382.382.382.384.294.294.294.299.479.479.479.4720.9320.93JJF(JJF(陕)035－20206.9920.9320.93表表A.2降水粒子等效粒径的A类不确定度测量重复性引入的标准不确定度（mm）0.0020.0020.0020.0010.0030.0030.0030.003标准偏差§（mm）0.0050.0050.0050.0040.0080.0080.0090.009粒子速度（m/s）3.396.993.396.99等效粒径（mm）2.382.382.382.384.294.294.294.298JJF(陕)035-2020JJF(陕)035-20200.0010.0010.0020.0010.0020.0020.0020.0020.0040.0030.0050.0040.0070.0070.0070.0053.396.993.396.999.479.479.479.4720.9320.9320.9320.93JJF(陕)035－2020A.2.3合成标准不确定度和扩展不确取包含因子k=2，扩展不确定度计算公式如下所示：U=kxuaz表A.3降水粒子等效粒径的扩展不确定度等效粒径（mm）粒子速度（m/s）合成标准不确定度（mm）扩展不确定度U（k=2）（mm）2.380.030.062.383.390.030.062.386.990.030.062.380.030.064.290.030.064.293.390.030.064.296.990.030.064.290.030.069.470.030.069.473.390.030.069.476.990.030.069.470.030.0620.930.030.0620.933.390.030.0620.936.990.030.0620.930.030.06JJF(陕)035-2020——各校准点速度平均值，m/s；JJF(陕JJF(陕)035－2020表B.1降水粒子速度示值误差试验结果示值误0.020.030.020.050.020.030.020.050.030.030.020.050.020.03粒子速度校准值（m/s）平均值2.013.427.022.013.427.022.023.427.012.013.42示值2.023.427.012.013.427.022.023.427.012.013.43示值2.013.427.022.013.427.022.023.437.012.023.42示值2.013.437.022.013.427.022.013.437.022.023.42示值2.013.437.012.023.437.012.023.437.022.013.42示值2.013.427.012.023.437.012.023.427.012.013.42示值2.013.427.022.023.427.022.023.427.022.023.42第4次示值2.023.427.012.013.427.022.023.427.012.013.42示值2.023.427.012.013.427.012.023.427.012.013.42第2次示值2.023.427.022.013.427.012.013.427.012.013.42示值2.013.427.022.023.427.012.013.427.012.013.43标准值粒子速度（m/s）3.396.993.396.993.396.993.39等效粒径（mm）2.382.382.382.384.294.294.294.299.479.479.479.4720.9320.93JJF(JJF(陕)035-20200.020.057.027.027.027.027.017.017.027.017.017.017.026.9920.9320.93表表B.2降水粒子速度的A类不确定度测量重复性引入的标准不确定度（m/s）0.0020.0010.0020.0020.0020.0010.0020.001标准偏差s（m/s）0.0050.0040.0050.0050.0050.0040.0050.004粒子速度（m/s）3.396.993.396.99等效粒径（mm）2.382.382.382.384.294.294.294.29JJF(陕)035－2020JJF(陕)035－20200.0020.0020.0020.0020.0020.0010.0020.0020.0050.0050.0050.0050.0050.0040.0050.0053.396.993.396.999.479.479.479.4720.9320.9320.9320.93JJF(陕)035-2020取包含因子k=2，扩展不确定度计算公式如下所示：U=kxug表B.3降水粒子速度的扩展不确定度等效粒径（mm）粒子速度（m/s）合成标准不确定度（m/s）扩展不确定度U（k=2）（m/s）2.380.020.042.383.390.020.042.386.990.020.042.380.020.044.290.020.044.293.390.020.044.296.990.020.044.290.020.049.470.020.049.473.390.020.049.476.990.020.049.470.020.0420.930.020.0420.933.390.020.0420.936.990.020.0