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本文介绍了在ＨＴ－６Ｂ上使用的一套五道外差接收机系统，它用于该装置的ＥＣＥ信号测量。该系统具有研究等离子体温度参数的时空演化能力，空间分辨可达０．５ｃｍ，时间分辨达５０μｓ。它还具有沿装置小半径垂直中心弦方向观察ＥＣＥ信号的能力。因而，可以配合逐点扫描纵场，使系统具有频谱测量的性能，且可用于研究低杂波驱动等离子体中高能电子的性质及其分布。
This article describes a five-channel heterodyne receiver system used on the HT-6B for ECE signal measurement of this device. The system has the ability to study temporal and spatial evolution of plasma temperature parameters with spatial resolution of up to 0.5 cm and temporal resolution of 50 μs. It also has the ability to observe ECE signals along a chord perpendicular to the small radius of the device. Therefore, it is possible to cooperate with the scanning of the longitudinal field point-by-point to make the system have the performance of spectrum measurement and can be used to study the properties and distribution of high-energy electrons in the low-noise plasma.