ECHOSOUNDERS17

In the early days,the only material available to make transducers – which form the essential component of an Echosounder – was nickel. This was expensive,heavy,and as Simrad would soon find out,not very efficient.For much of the 70’s,Simrad technicians worked on finding a better material for the transducers, and by 1976,were ready to release the greatest innovation since Echo Integration – the moulded multi-element ceramic transducer.Whereas nickel was about 25% efficient,ceramics offered approximately 50-75% effeciency.With this one invention,Simrad could offer a more capable,more sensitive and less power hungry Echosounder than before.It had also made Echo sounders a more affordable prospect to fishermen. The innovations didn’t stop here though…

Abig scientific tranducerfrom the early sixtieswith 24 nickel elements. The small, commercial transducers had only one each. New txt? Wet paper recording.(2 step)Dry paper recording.(12 step)Color recording.(32 step)CTR recording.