ABSTRACT
This chapter on engineering sensors considers the various sensor systems and the tasks they perform, having to do primarily with traditional engineering functions onboard ships. Numerous functions are defined in the context of those that are common among many different types of ships. However, specialty sensor functions that apply to relatively few classes and numbers of vessels are generally not discussed. The many different types of sensors that are typically found on most ships are described as involving the measurement of levels, flows, pressures, temperature, humidity, positions and other characteristics of fluids, gases and various solid apparatus. Performance characteristics are also described that help to determine whether the machinery, other apparatus, or processes they monitor are operating within or outside of nominal limits, or to detect anomalies and other events as they occur. The topic of “smart sensors” is also discussed highlighting their use and advantages towards increasing safety and improving performance. Finally, shipboard process automation is described, emphasizing sensor fusion and how these systems can extend and enhance sensor performance.
