Analog Diablog is the place to comment on the articles found in Analog Dialogue (or those that you'd like to see). It can also be used as a discussion forum on products, applications, technology, and techniques for analog, digital, and mixed-signal processing using Analog Devices components.
The increasing use of hard disk drives in portable equipment has fueled the need to prevent their destruction when a product that contains one is accidentally dropped. This article describes a novel technique that calculates differential acceleration, thus allowing a dual-axis accelerometer to sense an impending collision in time to park the read/write head and protect the head and the platter from damage.
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Serial communication buses are used to transmit data over various types of physical networks, with interconnected systems typically separated by long distances. Thus, galvanic isolation is often required to break ground loops, protect the system from high-voltage transients, reduce signal distortion, and to enhance physical safety.
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