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本文回顾了二十年前的遥测技术,与目前的技术作了比较,并对将来的遥测作出了推测。评述的内容包括:遥测系统的特性、设备的单元价格、遥测在过去、目前的应用情况以及未来可能获得的应用。本文中关键的字眼是“选择”。二十年前,用户在设备和技术方面都没有什么选择的余地,但现在的技术提供了一个广泛的选择范围;有迹象表明,今后在性能、价格以及遥测作为数据采集和处理手段方面会有更广泛的选择。
This article reviews the telemetry technology twenty years ago, compares it with current technologies and makes predictions about future telemetry. Comments include: characteristics of telemetry systems, equipment unit prices, telemetry in the past, the current application and possible future applications. The key word in this article is “choice.” Twenty years ago, users had little choice in terms of equipment and technology, but today’s technology offers a wide range of options; there are signs that future performance, price, and telemetry as a means of data acquisition and processing will have Wider choice.