The paper describes a VHDL based hierarchical test generator for digital systems. A VHDL subset to be used as an input of the test generation system is defined. The VHDL description will be transformed into a set of decision diagrams, which is used as a diagnostic model of a system under test. Functional test generation as well as hierarchical test synthesis are supported by the model. Experime...

............................................................................................................................ i Testplattform för styrsystemet DeltaV ...............................................................................ii Foreword.......................................................................................................................... iii Table of conten...

An automated data archival and retrieval system has been designed, developed, and implemented to improve the management of aeropropulsion test data at the Arnold Engineering Development Center (AEDC). Previously, the data archival and retrieval involved a laborious process that included manual tape operations and record keeping. The Test Data Management System (TDMS) utilizes high-volume mass s...

Engine testing involves measurement of rotating speed and torque of the engine by applying load controlled by a dynamometer connected to its output shaft. HORIBA has developed various types of dynamometer for the purpose of engine testing. They are mainly classifi ed into two types; one is absorbing only dynamometer such as hydraulic dynamometers and eddy-current dynamometers, the other is abso...