Magnetic Resonance - Technology Information Portal Welcome to MRI Technology
Info
  Sheets

Out-
      side
 



 
 'Quadrature Detector' 
SEARCH FOR    
 
  2 3 5 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Result : Searchterm 'Quadrature Detector' found in 1 term [] and 6 definitions [], (+ 1 Boolean[] results
1 - 5 (of 8)     next
Result Pages : [1]  [2]
MRI Resources 
Homepages - MR Myelography - Safety pool - Blood Flow Imaging - Calculation - Service and Support
 
Quadrature Detector
 
The quadrature detector is a part of the receiver that converts the high-frequency MRI signal to a lower frequency. This phase sensitive detector or demodulator detects the components of the signal in phase with a reference signal and 90° out of phase with the reference signal. The modulated signal contains i.e. the frequency range across the field of view encoded by the frequency encoding gradient. This may be performed by either analog or digital means.
spacer
 
• Share the entry 'Quadrature Detector':  Facebook  Twitter  LinkedIn  
MRI Resources 
Health - Bioinformatics - Image Quality - MRA - MRI Accidents - Colonography
 
Detector
 
Part of the receiver that demodulates the RF signal and converts it to a lower frequency signal. Most detectors are phase sensitive (e.g., quadrature detector / demodulator) and will also give phase information about the RF signal.
spacer

• View the DATABASE results for 'Detector' (16).Open this link in a new window


• View the NEWS results for 'Detector' (1).Open this link in a new window.
 
Further Reading:
  News & More:
A detector you can wear
Thursday, 23 August 2012   by phys.org    
Ultrasensitive Detector Pinpoints Big Problem in Tiny Fetal Heart
Tuesday, 6 April 2010   by www.sciencedaily.com    
More and More States Adopt Requirements for Ferromagnetic Detectors for MRI Safety
Monday, 19 March 2012   by www.pr.com    
MRI Resources 
MRI Technician and Technologist Career - PACS - Libraries - MRI Centers - Patient Information - Jobs pool
 
Imaginary Signal
 
Out of phase component of the signal from a quadrature detector.
spacer
 
Further Reading:
  Basics:
Imaginary Number
   by mathworld.wolfram.com    
MRI Resources 
MRI Accidents - Corporations - Sequences - Software - Breast MRI - Jobs
 
Phase Sensitive Detector
 
Detector that detects the phase of the signal relative to the phase of a reference oscillator. Phase sensitive detectors are used in MR transmitters (where they form part of the frequency synthesis pathway) and MR receivers (where they are used to down-convert the MR signal to audio-frequencies prior to digitization). This device type includes modulators, demodulators and mixers.

See Quadrature Detector.
spacer

• View the DATABASE results for 'Phase Sensitive Detector' (3).Open this link in a new window

MRI Resources 
Service and Support - Lung Imaging - MRI Centers - General - MRI Training Courses - Directories
 
Product Detector
 
Product detector or 'doubly balanced mixer (DBM)' is an electrical device to combine two signals. In MRI, used in the quadrature detector.
spacer

• View the DATABASE results for 'Product Detector' (2).Open this link in a new window

 
Further Reading:
  Basics:
Product Detector
   by en.wikipedia.org    
The Basics of MRI
   by www.cis.rit.edu    
MRI Resources 
MRI Accidents - MRI Reimbursement - Lung Imaging - Safety Training - Pregnancy - Contrast Enhanced MRI
 
     1 - 5 (of 8)     next
Result Pages : [1]  [2]
 Random Page
 
Share This Page
FacebookTwitterLinkedIn

MR-TIP    
Community   
User
Pass
Forgot your UserID/Password ?    



How AI will impact MRI :
only diagnostics 
saving time 
reducing cost 
makes planning obsolete 
reduce human knowledge 
not at all 

Look
      Ups





MR-TIP.com uses cookies! By browsing MR-TIP.com, you agree to our use of cookies.

Magnetic Resonance - Technology Information Portal
Member of SoftWays' Medical Imaging Group - MR-TIP • Radiology-TIP • Medical-Ultrasound-Imaging • 
Copyright © 2003 - 2024 SoftWays. All rights reserved. [ 28 March 2024]
Terms of Use | Privacy Policy | Advertising
 [last update: 2024-02-26 03:41:00]