Ask Control Engineering
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Is each day is really shorter?
March 06, 2010
Dear Control Engineering: I heard something about the recent earthquake in Chile affecting the earth’s rotation. What’s that about? » more
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March 06, 2010
Dear Control Engineering: I heard something about the recent earthquake in Chile affecting the earth’s rotation. What’s that about? » more
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Working with resistive sensor elements
February 27, 2010
Dear Control Engineering: I’ve read that RTDs (resistance temperature detector) are often the most precise temperature sensing devices. Given the relatively narrow range of resistance involved, how is it practical to get precision with two, three, or more decimal places on a Celsius scale? » more
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February 27, 2010
Dear Control Engineering: I’ve read that RTDs (resistance temperature detector) are often the most precise temperature sensing devices. Given the relatively narrow range of resistance involved, how is it practical to get precision with two, three, or more decimal places on a Celsius scale? » more
( No Comments )
Five tips for designing control panels
February 13, 2010
Dear Control Engineering: When planning control panels, what are key design considerations? » more
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February 13, 2010
Dear Control Engineering: When planning control panels, what are key design considerations? » more
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Induction motors with autotransformers
February 10, 2010
Bruce Konzak writes:Dear Control Engineering: Does a single phase 240 Vac induction motor have the same performance characteristics when powered by an autotransformer with a line to neutral feeder, as it does when powered normally by a line-to-line connection 120 degrees out of phase? » more
( 1 Comment )
February 10, 2010
Bruce Konzak writes:Dear Control Engineering: Does a single phase 240 Vac induction motor have the same performance characteristics when powered by an autotransformer with a line to neutral feeder, as it does when powered normally by a line-to-line connection 120 degrees out of phase? » more
( 1 Comment )
How do hackers invade networks?
February 06, 2010
Dear Control Engineering: I was reading the posting about hackers invading control systems. How is that possible with safeguards? » more
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February 06, 2010
Dear Control Engineering: I was reading the posting about hackers invading control systems. How is that possible with safeguards? » more
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How should control engineers use machine vision?
October 22, 2007
Machine vision systems have passed the point where the additional information they provide is worth the additional cost compared to point sensors. » more
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October 22, 2007
Machine vision systems have passed the point where the additional information they provide is worth the additional cost compared to point sensors. » more
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