Search results
Results from the WOW.Com Content Network
An x-ray image receptor, containing an anti-scatter grid and three AEC regions (represented by dark grey circles and square) These regions represent anatomical areas, e.g. lungs, spine. They can be selected individually, or all at once depending on the need. Automatic Exposure Control (AEC) is an X-ray exposure termination
Fish bone pierced in the upper esophagus. Right image without contrast medium, left image during swallowing with contrast medium. To obtain an image with any type of image detector the part of the patient to be X-rayed is placed between the X-ray source and the image receptor to produce a shadow of the internal structure of that particular part of the body.
The Automotive Electronics Council (AEC) is an organization originally established in the 1990s by Chrysler, Ford, and GM for the purpose of establishing common part-qualification and quality-system standards. The AEC Component Technical Committee is the standardization body for establishing standards for reliable, high quality electronic ...
A measuring instrument is a device to measure a physical quantity. In the physical sciences , quality assurance , and engineering , measurement is the activity of obtaining and comparing physical quantities of real-world objects and events .
Consequently, instruments measuring dose rate require the use of an energy compensated Geiger–Müller tube, so that the dose displayed relates to the counts detected. [4] The electronics will apply known factors to make this conversion, which is specific to each instrument and is determined by design and calibration.
Francis Rudolph Shonka (18 April 1906 – 11 October 1970) was a physicist and inventor. Shonka was known for his pioneering work with ionizing radiation measurement devices and equipment.
Echo cancellation mitigated this problem. During the call setup and negotiation period, both modems send a series of unique tones and then listen for them to return through the phone system. They measure the total delay time, then configure a delay line for that same period. Once the connection is completed, they send their signals into the ...
The instruments may include device power supplies (DPS), [1] [2] parametric measurement units (PMU), arbitrary waveform generators (AWG), digitizers, digital IOs, and utility supplies. The instruments perform different measurements on the DUT, and the instruments are synchronized so that they source and measure waveforms at the proper times.