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常见的玻璃管体温计,是靠管内的水银升降来判断温度值的高低。当光线较暗时,就看不清水银位置,给观察带来不便。这里介绍的语音报度体温计,能自动测量体温,并用清晰甜润声音向您报告温度,使用十分方便。工作原理图1为语音报度体温计的电原理图。它由测温探头电路、温度信号触发电路、语音报度电路、电子开关电路、功放电路及电源供给电路等六部分构成。
Common glass tube thermometer, mercury tube by the rise and fall to determine the level of temperature. When the light is dark, you can not see the location of mercury, to bring inconvenience to the observation. The speech-based thermometer, introduced here, automatically measures body temperature and reports the temperature to you with a clear, sweet sound that is easy to use. Working principle Figure 1 shows the voice of the thermometer thermometer schematic. It consists of temperature probe circuit, the temperature signal trigger circuit, the voice of the circuit, electronic switching circuit, power amplifier circuit and power supply circuit composed of six parts.