Each week, the editor of Planet Analog finds items of interest and then features them in two sections, entitled “Also of Interest” and “Elementals”. Each cites items from publications outside the Planet Analog and EETimes portfolios. And we also have an archive of recent weekly Planet Analog Newsletters, as pdf files; see the list at the very bottom.
“Also of Interest” and “Elementals” is an extension of our belief that engineers are interested in on-going tutorial on obviously relevant topics, as well as the serendipity of exploring topics which are not directly related to their jobs, but which will broaden their knowledge and sometimes spurs innovative and creative approaches. The first box highlights items of general interest to the engineer, while the second highlights basic and tutorial electronic-engineering material. Among the publications we check are IEEE Spectrum , Machine Design , Design News , Laser Focus World , EDN , Electronic Design , NASA Tech Briefs , Microwave Journal , RF & Microwaves , and Physics Today , plus others.
Consider these items as “online-only” extras, and worth a look. (Please note: there are also links to the previous weeks' editions, below this week’s items.)
Also of Interest:
- Forces that overcome preload can cause bolted assemblies to leak, rattle, and fail:
“How External Loads Affect Bolted Joints,”
Machine Design , April 22, 2010 - Mis-sized air conditioners can do more damage than the heat they try to remove:
“Clearing the Air on Air for Industrial Enclosures,”
Machine Design May 3, 2010 - It is possible to measure 50 nW in the far-infrared and terahertz spectrum (0.1 to 30 THz) with 2 nW resolution thanks to recent developments in thin-film crystalline pyroelectric detectors, improved electronics, and new digital signal processing (DSP) lock-in amplifier software:
“Sensitivity of broadband pyroelectric terahertz detectors continues to improve,”
Laser Focus World , May 2010 - Optical molecular imaging (OMI)–a marriage between various optical imaging techniques and different molecule-enhancing method–is on track to revolutionize the field of medicine.:
“Molecules can’t hide from the newest in-vivo imaging techniques,”
Laser Focus World , May 2010
Elementals:
- Digital power is a decision for the chip company, not the system engineer:
“Digital power, without the hype,”
EDN , April 22, 2010 - Understanding the key parameters of diodes and other components used in reference voltage circuits can help avoid issues in different application circuits across many disciplines:
“Generating Stable Voltage For Multiple Applications,”
Defense Electronics , March/April 2010 - Recent innovations in Li-ion chemistry have made the technology extremely competitive in markets that are weight-sensitive and inconvenienced by sealed lead acid's need for frequent maintenance.:
“Replace SLA Batteries with Li-Ion Technology,”
Power Electronics Technology , March 2010 - Accurate measurement of an LED's junction temperature determined that its thermal resistance is essentially constant, regardless of temperature variation and operating current:
“Is the Thermal Resistance of LEDs Constant?,”
Power Electronics Technology , April 2010
Previous “Also of Interest” and “Elementals” Editions:
Recent Planet Analog Newsletters:
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