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首页> 外文会议>North American Manufacturing Research Conference (NAMRC), May 21-24, 2002, West Lafayette, Indiana >DEVELOPMENT OF A WIRELESS PRESSURE SENSOR WITH REMOTE ACOUSTIC TRANSMISSION
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DEVELOPMENT OF A WIRELESS PRESSURE SENSOR WITH REMOTE ACOUSTIC TRANSMISSION

机译：无线声传无线压力传感器的研制

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摘要

Development of a wireless pressure sensor Is motivated to reduce package size and cost, improve lifecycle robustness, and thereby facilitate the widespread use of in-process sensors. Many net shape processes exhibit significant transient pressures during the production cycle, which may be used to self-energize a remote sensor through the piezoelectric (PE) effect. The pressure information inside the cavity is measured by means of a train of ultrasonic pulses. The pressure is obtained by multiplying the number of pulses with a preset threshold value. The analytical background of ultrasonic pulse generation and transmission through a metal mold is presented. The study is an integral part in the development of a wireless acoustic sensor for in-situ injection molding machine cavity pressure measurement and process condition monitoring.
机译：开发无线压力传感器的动机是减少包装尺寸和成本，提高生命周期的耐用性，从而促进过程中传感器的广泛使用。许多净成形工艺在生产周期中会表现出显着的瞬态压力，这些压力可用于通过压电（PE）效应自给远程传感器供电。腔内的压力信息通过一系列超声波脉冲进行测量。通过将脉冲数乘以预设阈值来获得压力。介绍了超声脉冲在金属模具中产生和传输的分析背景。该研究是用于原位注塑机模腔压力测量和过程状态监控的无线声传感器开发的重要组成部分。

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