Self contained flight duration measurement and recording apparatus

摘要: The self contained flight duration measurement and recording apparatus is designed to be affixed or within an object that will experience a of flight. measure display the elapsed time object's A timing device positioned in housing. activated by acceleration forces on deactivated deceleration acting upon object. force sensing unit controls electrical switch closes momentarily when subjected inertial changes. has central core surrounded coil, both which are integrated into circuit. As experiences deceleration, contact coil turn off timer. Switch sensitivity can adjusted as necessary for specific purposes device.