C-Tech offers comprehensive acoustic testing services at its underwater acoustic test facility (UWTF).

The Company's underwater acoustic test facility is located in an area remote from environmental noise, providing an acoustically quiet and stable water. The site measures 140 metres long, 100 metres wide and 13.5 metres deep.

On site, C-Tech has a fully instrumented floating, moored barge. This facility allows us to measure, record and calibrate sensitivity characteristics of projector and hydrophone arrays at frequencies from 50 Hz to 200 kHz. Under computer control, measurements are plotted, data is computed and results are drawn in diagram form.

The barge can accommodate transducer array sizes ranging up to 5000 kg in weight. Although the water freezes during the winter months, the UWTF remains fully operational by keeping the barge pool and other instrumented (hydrophone) areas free of ice. Seasonal water temperature variations are typically from 1°C (February) to 30° (July).

Acoustic Tests

• Beam Patterns (horizontal and vertical)
• Polar and rectilinear directivity patterns
• Source level test (transmit)
• Recieve Sensitivity
• Hydrophone calibration
• Deep submergence acoustic testing, .05-10 kHz at 0-500 psig

Underwater Acoustic Test Tank, UWTT
The UWTT is a cylindrical redwood tank 6.4m in diameter and 3.6m deep. It is located at C-Tech's main facility and is used for near-field acoustic transducer measurements ranging from 3 kHz - 200 kHz. Typical acoustic tests performed using the UWTT are:

• X-Y Admittance Plots
• X-Y Impedance Plots
• Resonance
• Source Level

Hydrostatic Pressure Testing
A pressure vessel provides automated programmable pressure cycle sequencing to a maximum pressure of 1210 psig. The vessel chamber measures 24 inches in diameter and 84 inches high.

For more information about C-Tech's Acoustic Testing services, please fill out the information request form on the Contact Us page.