Power consumption is becoming a critical part even for large, specialized systems like nondestructive ultrasonic testing instruments. Dapco Industries Inc. unveiled a tester and is shipping the first one to Union Pacific Railroad, which will use the equipment to peer inside railroad rails. The test system can also be used to examine high-pressure gas cylinders and many other critical metal products. Dapco picked Texas Instruments' TMS320C6472, a six-core DSP chip, in large part because of its low power consumption. That paves the way for a portable product that's currently moving toward production, while also reducing heat generation in existing systems.