가. HNC Hydrophones(HNC-1000) - Frequency range : 1 ~ 10MHz - nominal sensitivity : 780 nV/Pa - acceptance angle : 25° - Capacitance : 90pF - Max. operating temperature : 50℃나. NTR water conditioner(MECS) - provides microprocessor-controlled heating - provides de-gassing, filtration and de-ionization functions - DIM : 25.25”W X 27” H X 30.75” D - Controller: The water conditioner controller mounts in the rack above the manifold panel. The microprocessor that controls the water conditioner may be upgraded in the field to accommodate future firmware revisions - Heater and Filters: The heater and filtration module provides regulated heating and filtration/de-ionization of the water. Is is a continuous ‘flow through” process. - Degasser: The degasser module removes dissolved gases from the water. It is able to bring the dissolved oxygen content of an open 100 liter water tank from aobut 10 parts per million down to less than 4 parts per million within 4-5 hours. The degasser runs continuously. Degassing is a batch process which takes place in a chamber of approximately 2 liter capacity, and in batches of about .5 liters at a time. 다. AIMS(Acoustic Intensity Measurement System, ASTS03) - Tank Sizes: inside dim: 0.89m X 0.51m X 0.58m(35”X20”X23”tall) - Precise 3-axis scan, repeatable within 12μm and absolute accuracy of 25μm over 30 cm. - Travel: 800mm x 510mm x 510mm vertical - Digitized and stored waveforms, 1- and 2-dimensional spatial scans. The software gathers, displays and stores data. - Computer-controlled adjustment of either the hydrophone or the transmitting transducer for beam alignment using the optional two axes Angular Positioner. - Frequency scans, where the response is measured as a signal generator is stepped in frequency, is done with minimal additional hardware. This is valuable in transducer evaluation and hydrophone calibrations.