| 摘要 |
<p>A surge detection system for a compressor (12) having a gas inlet (16) and a gas outlet (18) and experiencing rapid temperature changes in said gas inlet (16) during surges, comprises: first (26) and second (24) thermocouples having different temperature response times, Tf and Ts respectively, and producing an electrical output related to said rapid temperature change occurring during a surge; means for mounting said first and second thermocouples (26,24) in said compressor gas inlet (16) such that both thermocouples are subject to the same temperature changes, means for electrically coupling said thermocouples to algebraically sum said electrical outputs, to represent the rapid change in temperature occurring between said thermocouples; and means coupled to said thermocouples for converting said algebraically summed outputs to control signals representing the number, intensity and duration of said surges.</p> |
