Measuring flow with ultrasonic signalsThese battery-powered flowmeters have no moving parts, using transit-time ultrasonic technology, where two flow sensors alternately transmit and receive a signal and "time of flight" measures flow rate. There is very little pressure loss and no filtration is needed. Both 150-lb ANSI and DIN flange styles come in many sizes, with either integral or remote electronics to display flow rate or total. Prices start at $1,752. OMEGA Engineering Inc.http://rbi.ims.ca/4928- 602
With erupting concern over police brutality, law enforcement agencies are turning to body-worn cameras to collect evidence and protect police and suspects. But how do they work? And are they even really effective?
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.