急!急!电信专业英语翻译
来源:百度知道 编辑:UC知道 时间:2024/09/20 03:48:56
关键词:温度测量;单总线,数字温度传感器;单片机;运程控制
波形发生器是随着不断进步的计算机技术和微电子技术在测量仪器中的应用而形成和发展起来的一类新型信号源。目前,国内生产的波形发生器大部分是利用分立元件及模拟集成电路构成的,转换量程靠手动来实现,不但体积大,而且可靠性和准确度很难进一步提高。本系统采用AVR系列单片机做为主控CPU,波形发生采用直接数字频率合成(DDS)技术,整个系统都是对数字信号进行处理,使系统有较强的抗干扰能力和稳定性。基于频率合成原理制成的信号发生器,由于可以获得很高的频率稳定度和精确度,因此发展非常迅速。本文主要论述了DDS系统的基本组成、工作原理及其特点。
关键词:DDS;单片机;稳定;
Dr.eye翻译:
With the development of electronic technology, temperature control and controlling using long-rangly extensivly, if the collecting and distributing type boiler is controlled , accuses of etc. warmly in the area. Various kinds of temperature sensors are various in style nowadays, for instance NTC , PT100 , electric thermocouple ,etc., the integrated temperature sensor has appeared in addition, for instance AD590, DS18B20 ,etc.. This system will adopt the minimum system of the one-chip computer some many temperature control will combine with RS485 communication, the control room that can be relatively transported controls a lot of temperature control points of the scene. Because is it realize more a bit warm to accuse of to want, single bus integrated temperature DS18B20 sensor first-selected. DS18B20 is a kind of high-accuracy digital temperature sensor that can organize the network , because of its unique advantage with single bus, can use family is it give sensor net