SeaTek specializes in high frequency acoustic instrumentation for both laboratory and field applications. A typical Ultrasonic Ranging System is composed of 32 transducers, and an electronics package. The acoustic operating frequency of this system is 5 MHz. The electronics package communicates with a PC via a USB communications port. The electronics package is capable of running up to 32 transducers, and sampling up to 4 external analog channels.
Electronics Package
The electronics package contains all of the transmitter, receiver, signal processing, and communication electronics. The electronics package streams the range data back to a logging PC which runs supplied software to display and log the range data real-time.
Transducers
All of the transducers are housed in stainless steel housings. There are 32 transducers included with this system. The transducers operate at 5 MHz; have a half beam angle of 0.9 degrees, and a transducer diameter of 1 cm. The closest range measurement of this system is 3.5 cm; the furthest range is 110 cm.
Application Procedure:
- These transducer arrays were designed to mount together to form a continuous transducer array of 32 transducers with 4 cm transducer spacing.
- This 32 element transducer array was designed to cover a large section of seabed with high-resolution.
- The electronics were housed in a waterproof housing and the transducer connectors were under-water matable.
- This 32 transducer field instrument was designed to measure bedforms in the energetic near-shore ocean environment.
