NIRAD-Data-Package-for-the-NASA-WB-57培训课件.pptVIP

NIRAD Data Package for the NASA WB-57 Prepared by Darin Toohey University of Colorado, Boulder April 2004 Updated March 2005 Non-dispersed InfraRed Airborne CO2 Detector (NIRAD) 精品文档 This package has been updated to account for a change in mounting of NIRAD into the rack of the right wing pod in order to make room for the new fast ozone instrument during PUMA (April/May 2005). The individual components of NIRAD are the same. However, they are now packaged into a single box that will be mounted to the left rear of the wing pod rack. Major changes to NIRAD, reflected in the revised slides below, are: Weight has been reduced 4 kg (~9 lb). New weight 66.5 lb The instrument is contained in a single box rather than three separate components as previously. New dimensions 10”(w) x 24”(l) x 14” (h) The box is mounted with six 10-32 cadmium plated stainless steel screws that are easily accessed for quicker installation and removal. New, simpler, structural calculation There is now a single gas line connection (as opposed to the original three) to make/break during installation and removal. New, simpler, operating procedures Minco heaters have been added to the gas-handling system to reduce changes in pressure regulator settings. New power diagram and specifications No changes to pressure system 精品文档 1. Payload Description Measurement: Carbon Dioxide (CO2) Method: Non-dispersed infrared absorption spectroscopy relative to a reference gas with known CO2 Instrument Details: Right wing pod, 66.5 lb, 10”x24”x14” (lwh), 250 W (28V aircraft power at 10 A) Sampling frequency: 10 Hz Accuracy: 0.1% Precision: 0.03% at 10 Hz, 0.01% at 1 Hz, 0.003% at 10 seconds NIRAD consists of three systems: (1) CO2 detector, (2) power and data acquisition, and (3) gas-handling. All three systems have flown previously. The CO2 detector was first flown in 1999 as part of CORE+ instrument during RISO and ACCENT and again in 2004 during PUMA-A. There have been no changes to the det