A study of the engineering problems involved in maintaining the required con- 

 ditions in different types of enclosures, and the identification of the instrumentation 

 required to permit correct monitoring of the various characteristics; the development 

 of the necessary instrumentation and equipment. 



Dynamics of exploited fish populations. 



Field Reference 18 



INSTRUMENTATION APPLIED TO MARINE ENGINEERING 



Recommended Topics 



Cheap, reliable wave recorders indicating directions as well as other wave 

 characteristics. 



(This requirement has not been highlighted earlier as of great significance, but a 

 number of offshore engineering problems and activities could be dealt with more 

 effectively if meaningful wave data were available. The first problem is to establish 

 what is meaningful, which may differ according to the application; we doubt whether 

 it can be simplified as far as is suggested. NIG and other places have wave- 

 measuring equipment and MATSU is looking into the possibility of rationalising 

 some of the requirements. A study of the significant factors in relation to various 

 offshore operations would be worthwhile; a number of bodies would be interested. 

 The suggested instrumentation can, however, probably be developed from existing 

 technology, and is perhaps not a suitable task for a University). 



Data recording and transmission buoys to monitor wind/wave velocities and 

 amplitudes, temperatures and direction. 



Information on physical conditions in or surrounding a ship and Its equipment. 



(The new techniques likely to be needed would be mainly those involved in 

 adapting to the marine environment. DTI are not investigating this aspect of 

 instrumentation). 



Survey of design recommendations for shipborne instruments (propulsion, navi- 

 gation, cargo handling, fire protection, computers etc.) and comparison of effective- 

 ness of equivalent land instruments, marinized-land instruments, and the need for 

 special development. 



*The development of a technique for the accurate measurement of large mass flows 

 of cryogenic liquids and vapours. Similar measurement is also required on board ship 

 for other fluids. The primary objective would be for use with custody transfer. 



(Many methods of flow measurement exist, including recent ones using sound or 

 light traversing the pipe at an angle; for gases or, especially, for mixed liquid/gas 

 flows these are unlikely to give sufficiently accurate results. The problem, though 

 not exclusively a marine one, appears difficult, interesting and well matched to 

 university investigation). 



Shipborne information systems. Study of the total information processing 

 problem in large merchant ships with a view to incorporation of a hierarchy of 

 computer-processors. 



47 



