ARL:UT IS LOCATED AT THE J. J. PICKLE RESEARCH CAMPUS (PRC) in north Austin, about 10 miles from the main university campus. PRC is home to about 20 laboratories and research centers, including the Microelectronics Research Center, the Center for Electromechanics, the Bureau of Economic Geology, and the Institute for Advanced Technology. The University is currently engaged in a planning process to expand PRC’s role in both teaching and research. The PRC Commons includes a dining service as well as gymnasium and exercise facilities available to the staff.

ARL:UT MAINTAINS A VARIETY OF FACILITES TO SUPPORT THE RESEARCH PROGRAMS. Those include a comprehensive machine shop with several numerically controlled machine tools,various instrumented tanks and pressure vessels supporting the acoustics and sonar programs,the Lake Travis Test Station, where high resolution sonars are tested and calibrated, an electromagnetics facility with satellite uplink capability, andthe High Frequency High Resolution Receive Site supporting HF radar, radio astronomy, and other electromagnetics programs.

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THE LAKE TRAVIS TEST STATION is located at Lake Travis, about 18 miles from ARL:UT. This facility provides year-round operations with multiple testing columns that are separated by as much as 130 ft and which can support transducers weighing up to 10,000 lbs. The calibration facility is capable of performing standard calibrations using transducers from 10 Hz-2 MHz for transmit and receive response, with polar and rectangular patterns at up to .005 deg rotational precision.

An 80 ft tower is mounted on the lake bottom 170 yards from the test station provides for free field longer range testing. The facility maintains a variety of barges, boats, cranes, hoists, winches, and generators as well as full diver support to handle almost any testing requirement.

OTHER ACOUSTIC TESTING FACILITIES LOCATED AT ARL:UT include a sonar model tank 12 ft deep x 15 ft wide x 60 ft long with a full suite of instrumentation for high frequency calibration and testing; a large fir test tank 38 ft deep x 55 ft diam containing 700,000 gallons of filtered, ambient temperature water and augmented with a 15-ton bridge crane; and a pressure testing facility with

· two 1000 psi vessels: 2 ft diam x 9 ft deep, 8 ft 8 in. diam x 13 ft deep; a
· 3000 psi vessel, 3 ft diam x 10 ft deep and a
· 5000 psi vessel, 9 in. diam x 8 in. deep.

EACH OF THESE FACILITIES HAS PROVEN TIME AND AGAIN the value of testing devices before taking them to the field so that any flaw or weakness in the design or manufacture of the device can be exposed and corrected, potentially saving large amounts of project time and funds that would be wasted by failures at sea.

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ARL:UT maintains HIGH PERFORMANCE NETWORKING AND COMPUTING FACILITIES to support design and modeling, communications tools, and the access to information necessary for state-of-the-art research and development.

All scientists and engineers have multiple gigabit-capable network connections in their offices and laboratories. As needed, our researchers can access a variety of high performance compute servers, data servers, and information.
Facilities and services are provided by Information Technology Services.

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THE PRECISION MACHINING FACILITY at ARL:UT contains multiple 4-axis machining centers including a CNC turret lathe, two CNC horizontal mills, and a CNC vertical mill. These are supplemented with several manual mills, lathes, and presses. Augmenting these capabilities is a coordinate measurement machine that assists the skilled staff of machinists and technicians in verifying not only parts manufactured in the ARL:UT facility but also those that were manufactured by shops outside the facility. In-house welding capabilities, including metal inert gas (M.I.G.), tungsten inert gas (T.I.G.), stick, aluminum ac and dc, brass, steel, stainless, cast iron, and titanium (collapsible purge chamber), are available to support the manufacture of parts for a variety of materials and project needs. Design engineers can use computerized design schematics to provide inputs to the CNC machining process, or they can simply provide drawings to produce the needed parts. Metal finishing capability for conversion coating, acid etching, and passivation round out the final finishing of the end product. A 15-ton bridge crane spans the entire shop area and enhances the efficiency and safety of shop operations. The on-site machining capability and the close working relationship between the engineers and the machinists are key to cost-effective solving of problems that are inherent in development of any complex mechanical device.

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ARL:UT HAS A SCIENTIFIC RESEARCH DIVE TEAM (SRDT). The team is composed of scientists, engineers, and technicians from the ARL:UT staff. The SRDT members have a combined 165 years of research diving experience, with each diver contributing a special set of skills and capabilities. The team provides scientific diving support 365 days a year for underwater acoustic research and development projects at the Lake Travis Test Station, the acoustic test tanks located at ARL, and wherever else scientific diving support is required. The SRDT can perform tasks in environments with very limited visibility, high currents, and depths greater than 130 feet. The team can make detailed measurements and observations, place and/or position objects in precise orientations, and test and evaluate a wide range of equipment used in the marine environment (e.g., hand-held sonars and acoustic beacons used for underwater navigation). The SRDT also has special capabilities in the areas of underwater photography (digital and 35-mm film) and video documentation (recorded and real-time), underwater communications (28.5 and 30 kHz, single side band), and remotely operated vehicle (ROV) operations (two modified Phantom HD-2s depth rated to 1000 ft). The SRDT also provides general marine science support and consultation for researchers both in-house and outside agencies.

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Operational Support Services and Information Technology Services groups are responsible for implementing ARL's facilities and services.

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ARL main entrance

ARL's main entrance.


LTTS facility

Lake Travis Test Station facility.

large fir test tank

Large fir tank.

network & computing facilities

Network & computing facilities.


precision machining facility

Precision machining facilities.


diver with hand-held sonar

Diver tests hand-held sonar.


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