![Cygnus Instruments: Famous Face Gets a Lesson on Surveying and UTG (Sir Tony Robinson pictured left)](https://iims-media-library.s3.eu-west-2.amazonaws.com/wp-content/uploads/2021/05/12130200/Mr-John-Heath-and-Sir-Tony-Robinson.png)
Cygnus Instruments developed the Multiple Echo technique in the 1980s in conjunction with IACS (International Association of Classification Societies). This special ultrasonic technique uses a “single crystal” probe utilising multiple back wall reflections to both ignore coatings (such as anti-fouling paint) and to give an accurate and reliable result on metal thickness.
Mr John Heath, a highly experienced and respected marine surveyor with over 40 years’ experience is the IIMS Technical Director and a board member. He recalls using his first piece of Cygnus equipment back in the 1980s. “I certainly remember using the very large oscilloscopes, pencil and tracing paper to conduct diminution surveys – and naturally, I recall what a revolution it was for our industry. Continue reading “Cygnus Instruments: Famous Face Gets a Lesson on Surveying and UTG”