温度是工农业生产和科学研究的重要参量之一。温度测霹虽很早就开始应用,研究,但至今仍是生产和科研的课题。随着科学技术的发展,温度测量已进入数字化、智能化时代。 数字测温要解决:一、将敏感器件所输出的微弱信号进行温度——电压变换和放大;二、敏感等件所输出的信号绝大多数与被测温度不完全呈线性关系,在精密测量温度的情况下更得考虑这种非线性关系故需进行线性化处理;三、用A/D转换器将模拟信号转换为数字信号,并译码显示。 电子工业部第四十九所研制的并通过 Temperature is one of the important parameters of industrial and agricultural production and scientific research. Although the measurement of temperature has long been applied and studied, it is still the subject of production and research. With the development of science and technology, temperature measurement has entered the digital, intelligent era. Digital temperature measurement to be solved: First, the weak signal output by the sensitive device for temperature - voltage conversion and amplification; Second, the sensitivity of the other parts of the signal output most of the measured temperature is not completely linear relationship between the precision measurement Temperature conditions have to consider this non-linear relationship between the need for linear processing; Third, the A / D converter to convert analog signals into digital signals, and decode the display. Ministry of Electronics Industry forty-ninth developed and adopted