30-mar-10 20:55:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 87.75 hours . Total airflow this filter = 25.77 cubic meters . Mean BC concentration of all lamps = 54 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .513 sen(zero) = 0.021 . ref(beam) = 2.196 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1255 ng Mean aerosol black carbon concentration = 48 ng/m3 --- The reference beam showed lamp intensity fluctuations of 86 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .859 sen(zero) = 0.021 . ref(beam) = 2.155 ref(zero) = 0.021 . Optical attenuation of filter deposit = 84 . Total aerosol black carbon on filter = 1353 ng Mean aerosol black carbon concentration = 52 ng/m3 --- The reference beam showed lamp intensity fluctuations of 61 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .673 sen(zero) = 0.021 . ref(beam) = 2.458 ref(zero) = 0.021 . Optical attenuation of filter deposit = 76 . Total aerosol black carbon on filter = 1356 ng Mean aerosol black carbon concentration = 52 ng/m3 --- The reference beam showed lamp intensity fluctuations of 46 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .903 sen(zero) = 0.021 . ref(beam) = 1.154 ref(zero) = 0.021 . Optical attenuation of filter deposit = 69 . Total aerosol black carbon on filter = 1400 ng Mean aerosol black carbon concentration = 54 ng/m3 --- The reference beam showed lamp intensity fluctuations of 215 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.498 sen(zero) = 0.021 . ref(beam) = 2.704 ref(zero) = 0.021 . Optical attenuation of filter deposit = 64 . Total aerosol black carbon on filter = 1453 ng Mean aerosol black carbon concentration = 56 ng/m3 --- The reference beam showed lamp intensity fluctuations of 140 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.373 sen(zero) = 0.021 . ref(beam) = 3.383 ref(zero) = 0.021 . Optical attenuation of filter deposit = 51 . Total aerosol black carbon on filter = 1562 ng Mean aerosol black carbon concentration = 60 ng/m3 --- The reference beam showed lamp intensity fluctuations of 149 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.137 sen(zero) = 0.021 . ref(beam) = 4.423 ref(zero) = 0.021 . Optical attenuation of filter deposit = 47 . Total aerosol black carbon on filter = 1530 ng Mean aerosol black carbon concentration = 59 ng/m3 --- The reference beam showed lamp intensity fluctuations of 149 ppm. --- Disk space = 3.095603E+07 bytes free: One entry at every 5 minutes. There is space for 6581 hours ( 274 days) more data --- 30-mar-10 20:55:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 30-mar-10 21:09:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.328 ref(beam) = 2.188 . Lamp 2 (470 nm): sen(beam) = 1.954 ref(beam) = 2.158 . Lamp 3 (520 nm): sen(beam) = 1.418 ref(beam) = 2.473 . Lamp 4 (590 nm): sen(beam) = 1.769 ref(beam) = 1.150 . Lamp 5 (660 nm): sen(beam) = 2.819 ref(beam) = 2.706 . Lamp 6 (880 nm): sen(beam) = 2.289 ref(beam) = 3.408 . Lamp 7 (950 nm): sen(beam) = 1.792 ref(beam) = 4.401 ---