Adc and dac - Study guides, Class notes & Summaries

Automatic exposure rate control (AERC) Answer A device which automatically controls mAs and/or kV in order to obtain at a preselected location(s) a required *quantity of radiation per unit time*. Automatic exposure control (AEC or ABC - automatic brightness control) Answer A device which automatically controls one or more technique factors in order to obtain at a preselected location(s) a required *quantity of radiation*. CCD, ADC (analog digital digital converter), computer, and DAC (digi...

Lecture 6 - ADC and DAC

non-volatiledoes not loss content when powered down true or false if you have a higher sampling rate does it have better quality?true, but bigger file sampling ratethe number of times per second that a sound is measured during recording process analog-to-digital converter (ADC)samples sound waves many times per second digital-to-analog converter (DAC)transforms the digital bits into analog sound waves What is the purpose of sampling?To take multiple height measurements of a wave and convert...

Chapter 02: Visibility of Details Martensen: Radiographic Image Analysis, 5th Edition MULTIPLE CHOICE 1. The light collected and converted to an electrical signal by the photomultiplier tube (PMT) during CR image sampling is then sent to the to be digitized. a. ADC (analog-to-digital converter) b. DAC (digital-to-analog converter) c. LUT (lookup table) d. workstation 2. What is the location on a histogram graph of air/gas? a. Center b. Far right c. Left d. Right 3. What i...

TEST BANK FOR RADIOGRAPHIC IMAGE ANALYSIS 4TH EDITION BY MARTENSEN Chapter 02: Visibility of Details MULTIPLE CHOICE 1. The light collected and converted to an electrical signal by the photomultiplier tube (PMT) during CR image sampling is then sent to the to be digitized. a. ADC (analog-to-digital converter) b. DAC (digital-to-analog converter) c. LUT (lookup table) d. workstation REF: P. 38 2. What is the location on a histogram graph of air/gas? a. Center b. Far right ...

Which type of spectrogram shows individual vertical glottal pulses (vertical striations) and has good TIME resolution? - correct answer wide band Which type of spectrogram shows horizontal lines that represent HARMONICS of the voice and has good FREQUENCY resolution? - correct answer narrow band From looking at a spectrogram, you can get a _____________ idea of what's going on in the voice -kind ...

Describe how bit patterns may represent other forms of data, including graphics and sound. Bit patterns can be used to store information about other forms of data, for example images can be stored using the images height and width in pixels with the colour depth and sound can be stored as digital samples of the original sound. Understand the difference between analogue and digital data. Analogue data is a continuous wave recorded in its original form, when analogue waveforms are sampled...

IGCSE Computer Science (ALL) What is the definition of an Input Device? - Answer- Any device that allows a computer to receive data from the outside world How many types of scanners are there? - Answer- 5 What type of scanner is used at airports to read passport pages? - Answer- 2D Scanners What type of scanner uses gamma rays? - Answer- SPCET Scanners What is the name of the input device that reads a series of dark and light lines of varying thickness? - Answer- ...

4 main comp. of programmable logic controller - correct answer processor, power supply, I/O, programming device define interface - correct answer two systems interacting with one another Define real world - correct answer physical devices that need to be hardwired Define discrete - correct answer I/Os ...

Chapter 02: Visibility of Details MULTIPLE CHOICE 1. The light collected and converted to an electrical signal by the photomultiplier tube (PMT) during CR image sampling is then sent to the to be digitized. a. ADC (analog-to-digital converter) b. DAC (digital-to-analog converter) c. LUT (lookup table) d. workstation ANS: A REF: P. 38 2. What is the location on a histogram graph of air/gas? a. Center b. Far right c. Left d. Right ANS: D REF: P. 39 | Figure 2-1 3. What is the locati...