基于超声波的电连接器接触压力测试方法研究

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关键词：超声波检测；电连接器；接触压力；无损检测；传播时间分析doi：10.3969/J.ISSN.1672-7274.2026.01.009图分类号：TB971 文献标志码：B文章编码：1672-7274（2026）01-0027-03

Research on Ultrasonic Contact Pressure Testing Method for Electrical Connectors

YAOChun1，CHENChengyi² （1.AVIC Zhongtian Machinery Co.，Ltd.， Changsha 4102oo， China; 2. Quanzhou Jingdian Measurement Technology Co.，Ltd.， Quanzhou 3620o5， China）

Abstract： This study proposes an ultrasonic based contact pressure testing method for electrical connectors to address the shortcomings of traditional contact pressure testing methods，such as strong destructiveness and difficulty inreal-time monitoring.By analyzing the reflection and transmisson characteristics of ultrasound atthe contact interface，amappng relationshipbetween contactstifness and pressure is established，andan experimentalplatform is designed to test different specificationsof electrical connectors.Theexperimentalresults indicate that the contact pressuredecreases as the diameterof the socket decreases，and there isalsoacertain degreeof dispersion，which mayincrease theriskofcontact failure.Thecomparative verification with theresistance strain method shows that the results of the two methods are highlyconsistent， while the ultrasonic method has higher efficiencyand applicability in the testing of multi pin electrical connectors，providing a new non-destructive testing method for the reliability evaluationofelectricalconnectors.

Keywords： ultrasonic testing;electrical connectors; contact pressure;non destructive testing;analysisof the propagationtime

电连接器作为电子设备中的关键组件，其接触压力的稳定性直接关系到信号传输的可靠性，传统的电阻应变法和机械检测法测量，常因破坏性或难以实时监测等局限性，难以满足精密测试需求]。（剩余3866字）