GE MR750 简介.

1、Jan 2010 Rev 6 Revision / Class Information The information in this course is FOR TRAINING PURPOSES ONLY. The information may not be current or appropriate for all systems. Before working on any equipment consult appropriate current service documentation. Failure to follow procedures in current serv

2、ice documentation or misuse of the course information may result in equipment damage, personal injury or death. a b 1 2 3 4 5 - - - - - - - - - - - - - 05 Sept 2008 06 Nov 2008 06 January 2009 29 Jan 2009 11 June 2009 4 Jan 2010 18 Jun 2010- - - - - - - - - - - - - First version All All All All All

3、- All - - - - - - - - - - - - J. Basel M. Barbeau A. Fischer J. Basel J. Basel J. Basel J. Basel - - - - - - - - - - - - - First version Graphic Update Multimedia Review Update for Links Update to add 450 info. Update to include Optima Course revised to Rev 5 - - - - - - - - - - - - RevisionDateSlid

4、e(s) ChangedNameReason for Change Discovery MR Jan 2010 Rev 6 Overview Jan 2010 Rev 6 Objectives Identify the impact of DISCOVERY and Optima MR on the Customer, Service Engineer, GE business Recognize the differences between DISCOVERY MR and other systems. Recognize the differences between Optima MR

5、 and other systems. The student will understand the high level layout and functionality of the system. Jan 2010 Rev 6 Technology Platform Advancement 32 channels with full clinical value 128-channel architecture New Modular HD coils suite New gradient subsytem; 50/200 gradient coil and driver New op

6、tical RF chain Silent patient table with touch- and-go landmarking Point-and-shoot user interface Significantly faster exam time Point-and-shoot user interface Complete Abdominal exam in 6 breath- holds; currently takes 20 minutes Jan 2010 Rev 6 Volumetric vascular scan time reduced from 45 minutes

7、to 6 minutes Volumetric vascular (run-off) scan Just touch and go Jan 2010 Rev 6 The DV / DVMR / TNT / Data: Scope complete system change except magnet More than two times bigger than average MR programs More than 4500 parts (versus HDx 900 parts) 10,000 drawings Approximately 200 FRUs (versus HDx 1

8、25, VCT 120) More than 1,000 service documents Resource peak at nearly 400 Managed many technical risks New siting requirements, and design and training challenges Driving to new Reli standards; total systems view with proactive reli growth (reli budget of $1.8M + $600K P not shown) xrmb Gradient Ci

9、rcuit (GC) Tank Power Electronics (PE) Tank PE Tank Pump Tool storage area Power and Motor Servo Module GC Tank Pump Jan 2010 Rev 6 Penetration (Pen) Cabinet Sited cabinet Front viewUn-sited cabinet Rear view Jan 2010 Rev 6 Global Operator Console (GOC) Jan 2010 Rev 6 GOC Location for optional IRDM

10、Power distribution View with right side cover removed. E Switch GOCAA Jan 2010 Rev 6 Magnet Magnet arrives from Magnet Plant with all electronics pre- installed. Left side from front Left side from rear RRx 2 Magnet cable IF Transie nt Detecto r Module (TDM) Remot e Receive r (RRx1) Body Hybrid Spli

11、tter & Preamp/Combi ner Assembly PAC and SRI4 located underneath on opposite side. Jan 2010 Rev 6 Rear Pedestal Left side from frontRight side from front Jan 2010 Rev 6 Rear Pedestal 16 channel RF Hub contains one of each: RFSB MCDB RFCB PDB 32 channel RF Hub Multi-Coil Driver Boards (MCDB) RF Control Board (RFCB) Power Distribution Board (PDB) 6 unused slots for future expansion to 128 channels. RF Switch Boards (RFSB) Jan 2010 Rev 6 Rear Pe