NMR Thermal Control Subsystem Reliability Design and Verification Based on Chi-Square Test.
10.12455/j.issn.1671-7104.250136
- Author:
Tingwei LIU
1
;
Cunli ZHANG
1
;
Jie ZHOU
1
;
Gang HU
1
Author Information
1. GE HealthCare China Innovation Center, Beijing,
- Publication Type:Journal Article
- Keywords:
nuclear magnetic resonance (NMR);
reliability design;
reliability growth;
reliability qualification testing;
thermal management
- MeSH:
Equipment Design;
Magnetic Resonance Spectroscopy/instrumentation*;
Reproducibility of Results
- From:
Chinese Journal of Medical Instrumentation
2025;49(5):560-566
- CountryChina
- Language:Chinese
-
Abstract:
The nuclear magnetic resonance (NMR) thermal control subsystem described in this paper is a newly developed platform-based thermal management solution. It presents critical challenges in system architecture design and core component selection. Therefore, it is necessary to carry out sufficient reliability design and verification work in the design and development stage to ensure its high quality and high reliability. Firstly, based on the statistical and analytical calculation of the client installation data of the benchmark product, the reliability metric of the new research subsystem is determined, and its usage and environmental profile are defined. Secondly, for the reliability metric to be verified, the test based on reliability growth and reliability demonstration is planned and implemented. A customized test platform is built, relevant reliability test parameters are designed, and a long-term test monitoring and recording mechanism is established to ensure the high-quality implementation of reliability tests. Finally, a detailed analysis is carried out on the design defects and failure modes exposed during the reliability test, and corresponding control measures are proposed to achieve the engineering goal of improving product robustness throughout its life cycle.
