Automatic wind direction readout device专利检索-风向标风力发电机组风力发电场风能专利检索查询-专利查询网

Automatic wind direction readout device

阅读：602发布：2021-09-10

专利汇可以提供Automatic wind direction readout device专利检索，专利查询，专利分析的服务。并且A wind vane rotates the arm of a potentiometer having a threeterminal voltage divider. The filtered output voltage of the potentiometer is an indication of wind direction. Avoidance of any discontinuities in the output voltage due to the potentiometer gap is accomplished by a logic device and a relay which switches the voltage range of the potentiometer whenever the arm crosses the gap. Therefore, the filtered output of the potentiometer will be a continuously varying voltage extending over three full revolutions of the wind vane.，下面是Automatic wind direction readout device专利的具体信息内容。

权利要求

1. A device for providing an electrical signal which is a continuous function of the direction of alignment of a wind vane comprising: a potentiometer means having first, second and third terminals and a resistor means connected in parallel across the gap formed by said first and second terminals; said potentiometer means further including a movable arm means having a contact means mounted on said arm and connected to said third terminal; driving means connected between said arm and said wind vane for sliding said contact means along said resistor means and across said gap in response to movements of said wind vane; a source of a plurality of adjacent potential ranges; a switching means; a detection means; and output means; said switching means connected between said source and said first and second terminals for selectively connecting across said first and second terminals different ones of said potential ranges in response to switching signals from said detection means; said detection means connected to said third terminal for detecting movements of said contact means across said gap and for providing switching signals to said switching means; said output means connected to said third terminal and including filter means for removing short time discontinuities.

2. The device according to claim 1 and wherein said resistor means is a single turn resistor.

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Automatic wind direction readout device

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