07-apr-11 22:55:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 53.66 hours . Total airflow this filter = 15.74 cubic meters . Mean BC concentration of all lamps = 81 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .513 sen(zero) = 0.021 . ref(beam) = 2.217 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 79 ng/m3 --- The reference beam showed lamp intensity fluctuations of 76 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .973 sen(zero) = 0.021 . ref(beam) = 2.431 ref(zero) = 0.021 . Optical attenuation of filter deposit = 80 . Total aerosol black carbon on filter = 1292 ng Mean aerosol black carbon concentration = 82 ng/m3 --- The reference beam showed lamp intensity fluctuations of 59 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .717 sen(zero) = 0.021 . ref(beam) = 2.500 ref(zero) = 0.021 . Optical attenuation of filter deposit = 70 . Total aerosol black carbon on filter = 1249 ng Mean aerosol black carbon concentration = 79 ng/m3 --- The reference beam showed lamp intensity fluctuations of 46 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.036 sen(zero) = 0.021 . ref(beam) = 1.243 ref(zero) = 0.021 . Optical attenuation of filter deposit = 62 . Total aerosol black carbon on filter = 1264 ng Mean aerosol black carbon concentration = 80 ng/m3 --- The reference beam showed lamp intensity fluctuations of 213 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.493 sen(zero) = 0.021 . ref(beam) = 2.547 ref(zero) = 0.021 . Optical attenuation of filter deposit = 57 . Total aerosol black carbon on filter = 1291 ng Mean aerosol black carbon concentration = 82 ng/m3 --- The reference beam showed lamp intensity fluctuations of 133 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.536 sen(zero) = 0.021 . ref(beam) = 3.571 ref(zero) = 0.021 . Optical attenuation of filter deposit = 43 . Total aerosol black carbon on filter = 1325 ng Mean aerosol black carbon concentration = 84 ng/m3 --- The reference beam showed lamp intensity fluctuations of 149 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.250 sen(zero) = 0.021 . ref(beam) = 4.613 ref(zero) = 0.021 . Optical attenuation of filter deposit = 40 . Total aerosol black carbon on filter = 1305 ng Mean aerosol black carbon concentration = 83 ng/m3 --- The reference beam showed lamp intensity fluctuations of 145 ppm. --- Disk space = 2.078669E+07 bytes free: One entry at every 5 minutes. There is space for 4419 hours ( 184 days) more data --- 07-apr-11 22:55:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 07-apr-11 23:09:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.301 ref(beam) = 2.156 . Lamp 2 (470 nm): sen(beam) = 2.106 ref(beam) = 2.394 . Lamp 3 (520 nm): sen(beam) = 1.395 ref(beam) = 2.476 . Lamp 4 (590 nm): sen(beam) = 1.868 ref(beam) = 1.221 . Lamp 5 (660 nm): sen(beam) = 2.582 ref(beam) = 2.502 . Lamp 6 (880 nm): sen(beam) = 2.323 ref(beam) = 3.515 . Lamp 7 (950 nm): sen(beam) = 1.814 ref(beam) = 4.519 ---