| 摘要 |
<p>The thermometer, designed to generate signals which are converted into a display of symbols on a screen and into an audio emission through a loudspeaker, comprises an electronic circuit based on the use of a central processing unit incorporating programmable memories, with an input associated with a sensor element, capable of reacting to variations in temperature, and of forming, by means of a resistor with a negative temperature coefficient, a unit for processing the signals produced by the sensor, a unit comprising a microcontroller, a stage for processing the analog signals which give rise to intelligible sounds produced by means of a loudspeaker, and a section for displaying values on a screen. <IMAGE></p> |
