Microprocessor controlled data acquisition system

Includes bibliographical references (pages #-#)The data acquisition system built for this project is intended to be used in engineering laboratory experiments which require a record of time dependent data in the form of analog voltages. The system is controlled by a microcomputer and is capable of accommodating a wide range of applications without hardware adjustments. The project is comprised of a circuit design and software programs.\ud A breadboard model of the circuit was built to prove the hardware design. The circuit consists of an analog and a digital subsystem. The analog subsystem provides the input signal path and the signal gain. The digital subsystem converts the analog voltages into digital logic levels and provides the control signals.\ud The software programs are used to prove the system design. The programs, which are stored in the microcomputer's memory, are divided into three functions. First, the system is initialized by the user for a specific application from a series of software generated questions. Next, the analog inputs are sampled, converted into digital values, and stored in the microcomputer's memory. Finally, the data is displayed as digital voltages