SENSORS: Innovative Solutions‘ TR420E is a top-mounted, 316 stainless-steel level sensor containing a chain of equally spaced reed switches and resistors. When activated by the vertically moving magnetic float, the variable resistive signal is converted to a proportional voltage or (4-20 mA) current output through the 12 or 24V dc powered conditioning board located in the top-mounted, Nema 7 J-box. Available in lengths up to 18 ft, the TR420E features a standard ½-inch repeating increments with optional ¼-inch resolution, and can be supplied in a variety of mount sizes and enclosure styles. The various output options are compatible with most programmable controllers and digital receivers.
It carries an FM explosion-proof rating for Class I, Division 1, Groups A,B,C and D; and dust-ignition proof for Class II/III, Division 1, Groups E, F and G hazardous, (classified) locations, indoor/outdoor (Type 4, 4X).
Unlike many solid-state level transmitters, the TR420E float transmitter is unaffected by the conductivity or dielectric properties of the liquid. The staggered reed switch and parallel resistor arrangement also ensure a continuous and accurate signal. If one reed switch were to fail, the resulting signal would be affected only at that point. The integral circuit board design, robust stainless-steel tube and high-pressure float resist high levels of shock and vibration make the TR420E ideal for off-road vehicle fuel tanks, generator set fuel tanks and other combustible liquid storage.
Some humanoid walking robots are also good at running, balancing, and coordinated movements in group settings. Several of our sports robots have won regional or worldwide acclaim in the RoboCup soccer World Cup, or FIRST Robotics competitions. Others include the world's first hockey-playing robot and a trash-talking Scrabble player.
A recent example of a major CAE revamp is MSC Apex, released last month by MSC Software Corp. In a discussion with Design News, MSC executives noted that its next-generation platform is designed to substantially reduce CAE modeling and process time, “in some cases from weeks down to hours.”
The Thames Deckway would run for eight miles close to the river’s edge, rising and falling slightly with the tidal cycle. It will generate its own energy from a series of devices that will line the pathway and use a combination of sources to make the path self-sustaining.
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