Modulator apparatus utilizing piezoelectric plates专利检索-压电效应电磁学专利检索查询-专利查询网

Modulator apparatus utilizing piezoelectric plates

阅读：393发布：2022-03-09

专利汇可以提供Modulator apparatus utilizing piezoelectric plates专利检索，专利查询，专利分析的服务。并且A modulator and method for providing uniform increments of fluid in a continuously pulsing manner, is disclosed. The modulator employs the piezoelectric effect to impart peristaltic-like action to a flexible, resilient channel causing fluid contained within that channel to be pulsed from the channel, in the form of substantially uniform increments or slugs. The modulator is employed, for example, in combination with, and to feed fluid sample to, an analytical instrument such as a flame spectrophotometer.，下面是Modulator apparatus utilizing piezoelectric plates专利的具体信息内容。

权利要求

1. A modulator for providing uniform increments of fluid material, said modulator comprising at least two piezoelectric plates, at least one flexible, resilient tube means positioned so that an intermediate portion of said tube means is interposed between said plates, support means for positioning and holding said plates, said plates being positioned and supported so that peristaltic-like action can be imparted to said tube means when AC voltage is applied to said plates.

2. The modulator of claim 1 wherein said flexible, resilient tube means is a latex tube.

3. The modulator of claim 1 wherein the inlet portion of said tube means is provided with a partial flow restriction.

4. The modulator of claim 1 wherein the outlet portion of said tube means is provided with conduit means, said outlet portion being not otherwise restricted.

5. The modulator of claim 1 comprising three piezoelectric plates and two flexible, resilient, tubes.

6. A single channel modulator for providing, in a continuously pulsing manner, increments of fluid material, said modulator comprising a pair of piezoelectric plates, a flexible, resilient tube positioned so that an intermediate portion of said tube is interposed between said plates, means for applying an AC voltage to said plates, said modulator being adapted to impart a peristaltic-like action to said flexible, resilient tube when an AC voltage is applied to said plates, whereby when fluid material enters the inlet end of said tube, uniform increments of said fluid material are provided at the outlet end of said tube.

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Modulator apparatus utilizing piezoelectric plates

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