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发表于:2008-7-30 13:54:02
标签：豪探测器

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How do Hall sensors work?

　　The Hall effect, is a magnetohydrodynamic phenomenon where an external magnetic field affects the flow of charge carriers in a semiconductor in such a way that an electric field appears directed at right angles to both the …

系统分类: 仪表传感器   |    用户分类: 无分类    |    来源: 原创

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发表于:2008-7-30 13:51:04
标签：连续近似ADC

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What is a successive approximation ADC?

　　Analog to digital converters (ADCs) are arguably the most common mixed signal circuit in use today. The successive approximation register (SAR) type is potentially the most accurate ADC circuit, although it is not the f…

系统分类: 电源电缆   |    用户分类: 无分类    |    来源: 原创

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发表于:2008-7-30 13:48:48
标签：机器视觉 培训

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Where can I pursue machine vision training?

　　Machine vision is not a discipline in itself, such as mechanical engineering. It is a skill involving specialized equipment. How you should go about gaining that skill depends on your goals. 　　If you simply want to gain profi…

系统分类: 机器视觉   |    用户分类: 无分类    |    来源: 原创

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发表于:2008-7-30 13:47:01
标签：磁多极

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What is a magnetic multipole?

　　Mathematically, a pole is any geometric singularity. For example, the Earth’s north and south poles are places where lines of longitude meet in singularities. In other words, the longitudes of these poles are undefined. Actu…

系统分类: 其他技术   |    用户分类: 无分类    |    来源: 原创

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发表于:2008-7-30 13:43:51
标签：数字滤波器

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How does a digital filter work?

　　Digital filters capitalize on the fact that digital electronics looks at waveforms as a timed sequence of values, rather than instantaneous voltages. Digital filters start with an analog waveform, convert it to a digital waveform, …

系统分类: 嵌入式系统   |    用户分类: 无分类    |    来源: 原创

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发表于:2008-7-30 13:42:08
标签：化学 机电一体化

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chemistry background of a mechatronics engineer

　　I mentioned chemistry as being important to a mechatronics engineer working on environmental projects in my June 9, 2008 blog entry, and for most such projects that would be true. The thing to keep in mind is that mecha…

系统分类: 电机传动   |    用户分类: 无分类    |    来源: 原创

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发表于:2008-7-30 13:39:29
标签：RCA接口

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How old is the RCA connector standard?

　　The other day, Control Engineering process industries editor Pete Welander and I were talking about the evolution of various standards on the way out to the parking lot, when this week’s question came up. We couldn’t r…

系统分类: 电源电缆   |    用户分类: 无分类    |    来源: 原创

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发表于:2008-6-6 11:11:33
标签：机电一体化

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the ideal background for a mechatronics engineer

　　Mechatronics is a cross-disciplinary system-level discipline. So, a mechatronics engineer needs a very broad technical background as well as communication and interpersonal skills. 　　The term system-level gets …

系统分类: 运动控制   |    用户分类: 无分类    |    来源: 原创

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发表于:2008-6-6 11:10:05
标签：嵌入式

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Why conduction cool an embedded computer?

　　Anyone who has actually put an operating laptop computer on top of their lap knows why cooling is important for any computer. Microprocessors dissipate a lot of electric power, which turns into heat, which must be rem…

系统分类: 工控机   |    用户分类: 无分类    |    来源: 原创

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发表于:2008-6-6 11:01:45
标签：无标签

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A portable instrument to measure room air pressure

　　The full text of the question is: Could you recommend some handheld instruments that can easily measure and indicate room air pressure (positive or negative, and how much)? 　　The short answer is “No.” As a journali…

系统分类: 运动控制   |    用户分类: 无分类    |    来源: 原创

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