Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A coil assembly for performance testing of mri gradient amplifiers

A technology of gradient amplifiers and coil components, applied in the direction of coils, instruments, measuring devices, etc., can solve problems such as application limitations, achieve universal applicability, improve positioning reliability, and meet the needs of performance testing

Active Publication Date: 2017-11-28
NEUSOFT MEDICAL SYST CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, for large-scale solenoid wound coil components, considering the cost and various factors, its application has great limitations

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A coil assembly for performance testing of mri gradient amplifiers
  • A coil assembly for performance testing of mri gradient amplifiers
  • A coil assembly for performance testing of mri gradient amplifiers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The core of the present invention is to provide a coil assembly for performance testing of MRI gradient amplifiers, which has a simple structure, low cost, small vibration during power-on operation, can meet the performance requirements of gradient amplifiers, and has universal practicability, especially for large size structure.

[0030] The coil assembly for MRI gradient amplifier performance test of the present invention will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can accurately understand the technical solution of the present invention.

[0031] The internal and external, longitudinal and transverse orientations described in this article are all referenced to the coil assembly, and the extension direction or length direction of the coil assembly is the longitudinal direction described in this article, that is, figure 1 A direction in A; the plane perpendicular to the longitudinal direction is the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
inductanceaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a coil assembly for performance test of a magnetic resonance imaging (MRI) gradient amplifier. The coil assembly is simple in structure, low in cost and low in vibration during energized running, has universal applicability and is particularly suitable for a large-size structure, and the performance test requirement of the gradient amplifier can be met. The coil assembly comprises a winding frame and a wire, wherein the winding frame comprises two flange assemblies and a plurality of first support rods, the two flange assemblies are arranged opposite to each other, the two ends of each first support rod are separately and fixedly connected with the flange assemblies, each first support rod encircles to form a first frame of a polygonal prismatic shape, the wire is spirally wound around the first frame, the winding frame also comprises a positioning element, and the positioning element is used for limiting the wire to move relative to the first frame. In the coil assembly, the positioning of the wire is enhanced by the positioning element, so that the vibration of the coil assembly during the application process is reduced, and the application demand of the gradient amplifier is met better; and the coil assembly is particularly suitable for the large-size structure and has universal applicability.

Description

technical field [0001] The invention relates to the technical field of magnetic resonance imaging systems, in particular to a coil assembly used for performance testing of MRI gradient amplifiers. Background technique [0002] The gradient amplifier is one of the core components of the Magnetic Resonance Imaging (MRI, Magnetic Resonance Imaging) system. It is responsible for supplying power to the gradient coils so that the gradient coils can generate a linearly changing gradient magnetic field in the imaging space to realize spatial encoding of the magnetic field. [0003] In order to obtain stable and high-quality images, not only the gradient amplifier is required to output accurate current and other technical indicators, but also its system is required to be stable and reliable. Therefore, after the assembly of each gradient amplifier in the manufacturing process, not only no-load operation must be performed, but also long-term load operation must be performed. In the p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01F5/02G01R35/00
CPCG01R35/00H01F5/02H01F2005/022
Inventor 陈瑜陈庆旭王延龙
Owner NEUSOFT MEDICAL SYST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com