Power-off testing

Power-off testing

Power-off testing is often necessary to test the printed circuit assembly (PCA) board due to uncertainty as to the nature of the failure. When the PCA can be further damaged by applying power it is necessary to use power off test techniques to safely examine it. Power off testing includes analog signature analysis, ohmmeter, LCR Meter and optical inspection. This type of testing also lends itself well to troubleshooting circuit boards without the aid of supporting documentation such as schematics.

Typical equipment

* Analog signature analysis
* Automated optical inspection
* LCR meter
* Machine vision
* Ohmmeter

Typical vendors

* Agilent Technologies
* Fluke Corporation]
* National Instruments


Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • Power supply unit (computer) — Power supply unit with top cover removed A power supply unit (PSU) supplies direct current (DC) power to the other components in a computer. It converts general purpose alternating current (AC) electric power from the mains (110 V to… …   Wikipedia

  • Power Computing Corporation — (often referred to as Power Computing) was the first company selected by Apple Computer to create Macintosh compatible computers. Stephen “Steve” Kahng, a computer engineer best known for his design of the Leading Edge Model D, founded the… …   Wikipedia

  • Power optimization (EDA) — Power optimization refers to the use of electronic design automation tools to optimize (reduce) the power consumption of a digital design, while preserving the functionality.Introduction and historyThe increasing speed and complexity of today’s… …   Wikipedia

  • Power law — A power law is any polynomial relationship that exhibits the property of scale invariance. The most common power laws relate two variables and have the form:f(x) = ax^k! +o(x^k),where a and k are constants, and o(x^k) is of x. Here, k is… …   Wikipedia

  • Power supply — For the Budgie album, see Power Supply (album). A vacuum tube rackmount adjustable power supply, capable of +/ 1500 volts DC, 0 to 100mA output, with amperage limiting capability. A power supply is a device that supplies electrical energy …   Wikipedia

  • Power (philosophy) — Powerful redirects here. For other uses, see Power (disambiguation). Power is a measurement of an entity s ability to control its environment, including the behavior of other entities. The term authority is often used for power perceived as… …   Wikipedia

  • Power dividers and directional couplers — A 10 dB 1.7–2.2 GHz directional coupler. From left to right: input, coupled, isolated (terminated with a load), and transmitted port …   Wikipedia

  • Power Animal (Gaoranger) — The is used. Although there are numerous Power Animal combinations, only some made it on the show, the movie, and a few other sources. In the finale, when Senki destroys the seventeen Power Animals aiding the Gaorangers and GaoGod, the other… …   Wikipedia

  • Power Stone 2 — Infobox VG| title = Power Stone 2 developer = Capcom publisher = designer = engine = released = (in Power Stone Collection) genre = Fighting modes = Single player, multiplayer, online multiplayer ratings = ESRB: Teen (T) ELSPA: 11 + platforms =… …   Wikipedia

  • Tidal power — Tidal power, sometimes called tidal energy, is a form of hydropower that converts the energy of tides into electricity or other useful forms of power.Although not yet widely used, tidal power has potential for future electricity generation. Tides …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”