We are aiming for the June to July time frame, this would be an initial production run of 10 or 20 units of the sonar block. Depending on how fast they sell the next production run could be 100 systems. The main bottleneck in production is the transducer. the electronics and housings can be made as fast as bread
We will see what we can do about a rotator for a 120 deg scan, this could be as simple as an underwater servo, without a slip ring, and a flexible cable to the sonar. If somebody else has a inexpensive underwater servo for sale we could use almost any underwater rotator.
I plan to send out the initial sonar electronics for the sonar block sometime next week, and plan to start testing sometime near the end of May.
Since the design and construction is very strongly based on a simplified version of our professional angle of arrival sector scan that we have been testing for over 2 years we are confident that by end of July we should have units for sale.
I checked our ceramic inventory and we have 300 kHz bars, but we have to order the higher frequencies of 675 kHz. Usually there is a 8 week lead time on the ceramics. Our electronics will run with any frequency from 100 kHz to 1 MHz. Our in house test version will be 300 kHz (since we have the ceramics), depending on the results from 300 kHz we may have to wait for the 675 kHz bars to arrive for the version that we plan to sell. It sounds like for the ROV applications higher frequency is the way to go since resolution is more important than long range.
I plan to post some images as soon as I have some results.