Galvannealing Phosphor Thermometry Customer Case During the process of galvanizing, steel is dipped in a bath of liquid tin to increase its resistance to oxidation and moisture. After galvanizing, a precise heat treatment allows control of the mechanical properties of the final galvanized steel. This heat treatment is known as galvannealing. During galvannealing, precise temperature control is necessary to promote the desired grain growth in the steel's tin-rich coating. Galvanneal thermometry is difficult. The rolling of the hot steel makes contact thermocouples and optical pyrometry impractical. A customer's galvanneal furnace is equipped for phosphor thermometry. This novel technique uses [...]

Pulsed Electric Field Food Processing Customer Case Pulsed Electric Field Food Processing is a continuous food processing system in which beverages (with a known conductivity) are pumped through a chamber containing an electrode. Pulses of high voltage electricity are passed across the electrode, thus through the liquid as well. It is a pasteurization technique being studied at Ohio State University. The need is to be able to monitor, display, and record to hard drive storage, voltage and current waveforms. They need to be able to draw information about the pulse duration, peak voltage, etc. from the recorded waveforms. Waveforms [...]

Nuclear Reactor Cooling Liquid Flow Measurements Customer Case The customer needs to make a flow meter that is able to measure the flow of liquid through a tube. In this case, water is used for nuclear reactor cooling. The obstacle is that the liquid must be measured while the tube remains intact. GaGe Case Solution Since the customer knows the application, he already has his own signal generator that produces the ultrasound, so he only required a good data acquisition card in order to acquire these ultrasonic signals. An amplified version of the signal coming from the transducer goes [...]

Phase Conjugate Sonar Customer Case Dissipationless physical systems, such as simple planetary motion or a swinging pendulum, exhibit time-reversal invariance. This means that if time were reversed the way a film projector can be, then the resulting motion would be allowed by the equations governing the system. It follows that if all velocities in a dissipationless system are suddenly reversed, the system will follow a time-reversed trajectory. Dissipationless or adiabatic wave propagation is time-reversal invariant. Phase Conjugate Optics involves the deliberate reversal of complex light paths. A customer is doing Phase Conjugate Sonar using sound instead of light. The [...]