Abstract
The authors presented a new and simple technique for computing indicated work, which lies on the fact that pressure and volume change in working space are periodic. Mathematical treatment on the basis of harmonic analysis for pressure and volume change in working space gives us a simple formula. In this study, the technique is applied to realize real-time indicated work meter. Processing programs consist of Basic and assembly language parts, only a part of high speed processing is written by assembly language. Hard wear of the meter and test apparatus also are described.
