An improved ion drift meter

This report provides the necessary operating, diagnostic and repair information for using and maintaining the Improved Ion Drift Meter (IDM). The report is divided into four sections. Section 1 contains the instrument description and theory of operation. Section 2 contains a description of planned spacecraft-level instrument testing, stimulation requirements and procedures, and instrument handling and safety. Section 3 contains a copy of the End-Item Acceptance Test (EIAT) that describes test results and presents calibration data and procedures. Any recalibration of the instrument will be performed per the EIAT calibration test procedure. Section 4 contains a list of the schematics, drawings, parts lists and wiring lists that describe the as-built configuration of the instrument. This documentation is available to AFGL upon request.