FLIR Systems Inc. announced that John D. Carter has been elected to its board for a term expiring at its 2004 annual meetings. FLIR Systems, based in Portland, Ore., makes infrared imaging systems for a variety of applications.   . . .   InVision Technologies Inc. said it has received orders for its CTX 9000 DSi explosives detection systems for a total value of about $8.5 million. The systems, sold to the Central Japan International Airport, the Athens International Airport and the Orio Al Serio International Airport in Bergamo, Italy, are scheduled for delivery in the fourth quarter of 2003 and the first quarter of 2004. InVision's sytems are based on advanced computed tomography technology.   . . .   Glasgow University's Institute of Biomedical and Life Sciences has purchased more than 120 Carl Zeiss microscopes, worth 600,000 pounds (about $963,182), to replace those lost in October 2001 when a fire destroyed the university's hundred-year-old Bower Building, home to one of the earliest biological laboratories in Britain. Microscopes purchased by the Institute include 100 Axiostar Plus and Stemi DV4 student microscopes, some equipped with fluorescence modules. Thirteen upright, stereo and inverted microscopes were also equipped for fluorescence imaging. The purchase also included an LSM 510 META laser-scanning confocal microscope, following a recent purchase of a Zeiss LSM 510 confocal system.