On-line tensile test data reduction using a remote analog computer

Abstract

A method for the mechanization of data reduction associated with tensile testing of solid propellant specimens using a remotely located general purpose analog computer is described. Also included is a discussion of the theory and methods utilized within the computer program. Signals originating at the tensile testing facility are transmitted (in analog form) via standard telephone lines to the analog computer one mile away. At the termination of each test, calculated data are returned in analog form to the test operator, who records data directly from a digital voltmeter. Hybrid techniques are used to provide sample and hold, timing, and interpolation and data reconstruction.