需要金幣： 1000 個金幣 |
資料包括：完整論文 |  |
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| 轉(zhuǎn)換比率：金額 X 10=金幣數(shù)量， 例100元=1000金幣 | 論文字?jǐn)?shù)：9206 |  | |
| 折扣與優(yōu)惠：團(tuán)購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要:溫度是一個常用的物理量，在我們的生活中起著十分重要的作用，溫度的高低，直接決定生命的存在與否；溫度的不同，創(chuàng)造了多樣的生命體；人為控制溫度，大大提高生產(chǎn)效率與生產(chǎn)產(chǎn)量。所以對溫度了解、測量、控制十分必要。因而，對溫度計的設(shè)計也不可缺少。傳統(tǒng)的溫度檢測大多以熱敏電阻為溫度傳感器，但熱敏電阻的可靠性差，測量溫度準(zhǔn)確率低，而且必須經(jīng)過專門的接口電路轉(zhuǎn)換成數(shù)字信號才能由單片機(jī)進(jìn)行處理，制作復(fù)雜。隨著科學(xué)技術(shù)的發(fā)展和現(xiàn)代工業(yè)技術(shù)的需要，測溫技術(shù)也不斷地改進(jìn)和提高。由于測溫范圍越來越廣，精度要求越來越高。傳統(tǒng)的熱敏電阻已不能符合這種要求，而單片機(jī)以功能強(qiáng)，體積小，功耗低，價格便宜，工作可靠，使用方便等特點悄悄進(jìn)入這個領(lǐng)域，很好的改善了以上的不足，所以選用單片機(jī)來制作溫度計。 本文介紹的是由單片機(jī)AT89S52作為主控制器，DS18B20作溫度采集，4位共陽極LED數(shù)碼管作為顯示器，經(jīng)硬件電路連接，軟件系統(tǒng)控制的制作相對簡單的數(shù)字溫度計，具有測溫范圍廣、測溫準(zhǔn)確，讀書方便等優(yōu)點。 關(guān)鍵詞：溫度計；熱敏電阻；單片機(jī)；DS18B20；測溫準(zhǔn)確
Abstract:Temperature is a common physical quantities, it plays a very important role in our lives, high and low temperature, directly determine the existence of the live or not; different temperature to create diverse life. Artificial temperature control, playing to improve the production efficiency and production yield. It is necessary to understand measurement and control of temperature. Thus, the thermometer design is indispensable. The traditional temperature detection mostly by the thermistor as a temperature sensor, but the thermistor temperature measurement reliability, low accuracy rate, and must pass through the dedicated interface circuit is converted into a digital signal to the single-chip microcomputer processes, production complex. With the development of science and technology and modern industry technology needs, temperature measurement technology will continue to improve and enhance. Increasingly high demand due to the increasingly wide rang of measurement accuracy. The traditional thermal resistance has been unable to meet this requirement, and the single chip microcomputer with strong function, small volume, low power consumption, low price, reliable work, use convenient wait for a characteristic crept into this field, good to improve the deficiency of the above, so the selection of SCM to make a thermometer. This paper is composed of single chip AT89S52as the main controller, DS18B20 as a temperature acquisition, a total of 4anode LED as a digital control display, the hardware circuit, software system to control the production of relatively simple digital thermometer, has the advantages of a wide range , accurate temperature and reading convenience. Key words: Thermometer；Thermistor；Single chip microcomputer；DS18B20；Accurate temperature measurement
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