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时延频谱法是美国工程师R.C.Heyser提出的,应邀指导B&K研制时延频谱技术控制单元5842。利用该仪器配合B&K外差式分析仪2010,失真测量仪1902及FFT实时分析仪2031或2033等可进行射频通信、雷达,水声等方面的研究。在测量自由场响应时,可取代造价昂贵的消声室,因此有一定的使用价值。该方法问世时间不长,国内对此比较生疏,现将有关5842的原理及应用简介于下。
Time-delay spectrum method proposed by American engineer R.C. Heyey was invited to instruct B & K to develop delay spectrum technology control unit 5842. The instrument can be used with the B & K heterodyne analyzer 2010, the distortion measuring instrument 1902 and the FFT real-time analyzer 2031 or 2033 to conduct research on radio frequency communications, radar and underwater acoustic applications. In the measurement of free field response, can replace the expensive muffler room, so there is a certain value. The advent of this method is not long, the domestic relatively unfamiliar, now the principle and application of the 5842 below.