System Specifications
Minimum Computer System Requirements
Pentium 4 with a speed of 1.5 GHz, .5 GB RAM, 40 MB hard drive space, and Windows XP with Service Pack 3. Aquanex also runs under Windows Vista and 7.
Power Requirements
Interface is powered by the USB port.
Underwater camera is powered by 8 AA batteries.
System Limitations
Sampling rate varies with the computer from about 50 to 100 samples/sec.
Maximum number of repetitions per trial is 100.
Maximum number of clients in database is 500.
Maximum allotted time for data collection in one trial is 5 min with 1-2 RSUs connected or 1.25 min with 3-8 RSUs at a sampling rate of 50 samples/sec.
Approximate File Sizes
Data files (.dat extension) require 12 KB with 1-2 RSUs connected and 48 KB with 3-8 RSUs for every 1 min. of data collected at a sampling rate of 50 samples/sec.
Summary files (.sum extension) require 1 KB with 1-2 RSUs connected and 4 KB with 3-8 RSUs for every 10 repetitions.
Video files (.avi extension) require about 30 MB for a 10 sec trial.
Standard Sensor Features
Model D sensors weigh 8 oz. and connect to the interface with a 50 ft. cable.
Model T transmitter unit with 2 sensors and 9v battery weighs 1 lb.
Sensor Dimensions/Installation Requirements
Type A sensors are 1.25 in. x .75 in. x 1 in.
Type B sensors are 2 in. x 1.5 in. x 1 in. and have a 24 in. x .75 in. rubber strap with a bayonet clip. Type C sensors require a minimum space of 1.25 in. x .75 in. x .5 in. and are custom installed by STR.
Type D sensors are 1.25 in. x .75 in. x 1 in. and can be installed on any flat surface that has a maximum thickness of .75 in. Type D sensors have a .75 in. long mounting screw with wingnut and require two mounting holes with diameters of 3/16 in. and 5/16 in. that are centered .75 in. apart.
Sensor Performance (maximum values)
Sensors have an accuracy of .2%.
Series 25 sensors have a sensitivity of .4 lb./unit and a range of 1,000 lbs. positive to 95 lbs. negative.
Series 40 sensors have a sensitivity of .25 lb./unit and a range of 1,000 lbs. positive to 85 lbs. negative.
Series 80 sensors have a sensitivity of .125 lb./unit, and a range of 500 lbs. positive to 75 lbs. negative.