Supercharge Your Innovation With Domain-Expert AI Agents!

Radio frequency power amplifier reliability test system and method

A technology of radio frequency power and test system, which is applied in the fields of environment/reliability test, instrument, measuring electricity, etc. It can solve the problems of small overall scale, complex structure of large medical imaging equipment, weak reliability research, etc.

Pending Publication Date: 2021-07-30
上海市医疗器械检验研究院
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the complex structure of large-scale medical imaging equipment and involving many disciplines, its reliability issues are very complicated. There are few existing institutions engaged in related reliability research, and the overall scale of related enterprises is not large, and reliability research is weak. Equipment reliability is very important

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
  • Radio frequency power amplifier reliability test system and method
  • Radio frequency power amplifier reliability test system and method
  • Radio frequency power amplifier reliability test system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] An embodiment of the invention, such as figure 1 As shown, the present invention provides a radio frequency power amplifier reliability test system, including RF power amplifier 1, RF signal generator 2, analog load, and intelligent terminal 3.

[0052] Radio frequency power amplifier 1 is connected to a grid, specifically, radio frequency power amplifier 1 (RFPA) is used in the magnetic resonance system to drive the radio frequency transmit coil, generate a specific center frequency, bandwidth, amplitude, and phase-generated current, generate a circular pole in the imaging space. Chemical or elliptical polarized radio frequency emission field, thereby generating an NMR (nuclear magnetic resonance) signal in excitation resonance frequency range.

[0053]The radio frequency signal generator 2 is connected to the radio frequency power amplifier 1 for inputting a radio frequency small signal to the RF power amplifier 1, and the radio frequency power amplifier 1 outputs a radio...

Embodiment 2

[0057] An embodiment of the invention, such as figure 1 As shown, on the basis of the first embodiment, the radio frequency output interface 11 is provided on the radio frequency power amplifier 1, and the analog load is connected to the RF switch 4 with the RF output interface 11.

[0058] Preferably, in the present embodiment, analog load includes a high power matching load 5 and a high power mismatch load 6, and the high power matching load 5 and the high power mismatch load 6 are connected to the radio frequency switch 4.

[0059] Preferably, the present invention provides a RF power amplifier reliability test system further comprising a function generator 7, a function generator 7 is connected to the RF power amplifier 1 for inputting a predetermined waveform to the RF power amplifier 1.

[0060] A coupler 8 is also provided between the radio frequency switch 4 and the RF output interface 11, and the function generator 7 is connected to the coupler 8 via the spectrometer 9.

...

Embodiment 3

[0065] An embodiment of the invention, such as figure 1 As shown, on the basis of Example 2, the radio frequency power amplifier 1 is provided with a power supply interface 12 and a control interface 13.

[0066] The grid is connected to the radio frequency power amplifier 1 through the power interface 12, and the intelligent terminal 3 is connected to the control interface 13 through the data line for configuring the parameters of the radio frequency power amplifier 1.

[0067] The intelligent terminal 3 is also connected to the radio frequency signal generator 2, the function generator 7, and the spectrometer 9 for configuring the radio frequency signal generator 2, the function generator 7, and the spectrometer 9. Specifically, such as figure 2 As shown, the intelligent terminal is provided with a parameter configuration interface, and the radio frequency power amplifier 1, the radio frequency signal generator 2, the function generator 7, the parameter configuration of the spec...

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

No PUM Login to View More

Abstract

The invention provides a radio frequency power amplifier reliability test system and method. The system comprises a radio frequency power amplifier which is connected with a power grid; a radio-frequency signal generator which is connected with the radio-frequency power amplifier and used for inputting a radio-frequency small signal to the radio-frequency power amplifier, and outputs a radio-frequency high-power signal through the radio-frequency small signal and power grid energy; an analog load which is connected with the radio frequency power amplifier and is used for receiving the radio frequency high-power signal; and an intelligent terminal which is connected with the radio frequency power amplifier and is used for sending a control instruction to the radio frequency power amplifier and detecting the radio frequency gain of the radio frequency power amplifier. According to the system, the radio frequency gain and output stability of the radio frequency power amplifier can be tested, so normal operation of large medical imaging equipment is ensured.

Description

Technical field [0001] The present invention relates to the technical field of radio frequency power amplifiers, especially in the reliability test system and method of radio frequency power amplifier. Background technique [0002] Large-scale medical imaging equipment, such as magnetic resonance imaging (MRI), CT, PETCT, etc., the imaging technology using the resonance characteristics of the biological magnetic core in the magnetic field, which has no electrical radiation, no damage, high resolution, high Contrast, multi-parameter imaging, and arbitrary direction cross-sectional imaging, and wide application in the field of medical imaging. RF power amplifier (RFPA) is an important part of a large medical imaging device that is used to output a sufficiently large RF output power. [0003] Due to the complex structure of large medical imaging equipment, it involves numerous disciplines. The reliability problem is very complicated. Existing institutions in related reliability rese...

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
IPC IPC(8): G01R31/00
CPCG01R31/003
Inventor 郁红漪胡晟刘勋贺飞
Owner 上海市医疗器械检验研究院
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com