A data acquisition system experiment for gas temperature and pressure measurements on a liquid-nitrogen-powered vehicle

A data acquisition system was set up to measure gas temperatures and pressures at various points on a liquid-nitrogen-powered vehicle. The experiment was attempted to develop a data acquisition method for applications on engines that use liquid air as the fuel. Two thermocouples and a pressure transducer were connected using data acquisition instruments interfaced to a laptop computer to acquire data. The experiment is believed to be successful and applicable.; The paper is divided into the following chapters: (1) Introduction; (2) Liquid Nitrogen Vehicle Description; (3) Data Acquisition Concepts; (4) Sensor Concepts; (5) Instrument and Sensor Selections; (6) Experiment Procedures; (7) The Experiment and Results; (8) Conclusions; (9) Recommendations.