【正文】 問題，需要進(jìn)一步探討。第四篇：摘要英文摘要溫度是生產(chǎn)過程中常見和重要的物理參數(shù)。溫度的測量直接關(guān)系到產(chǎn)品的質(zhì)量、生產(chǎn)效率以及生產(chǎn)安全等重大技術(shù)指標(biāo)。傳統(tǒng)的溫度測量系統(tǒng)中，溫度測量環(huán)節(jié)是由模擬溫度傳感器加上高性能的運(yùn)放和A/D轉(zhuǎn)換器構(gòu)成，然后通過單片機(jī)進(jìn)行控制，因而，所需的外圍器件較多，硬件成本開銷很大。本文設(shè)計(jì)了一種以Pt1000作為溫度傳感器，以可編程片上系統(tǒng)PSoC作為核心芯片，采用片內(nèi)的模擬和數(shù)字IP核資源，利用Modbus協(xié)議進(jìn)行上位機(jī)通信的溫度測量系統(tǒng)。本文首先介紹了課題研究的背景和意義，并分析了當(dāng)前溫度測量技術(shù)和可編程片上系統(tǒng)PSoC的研究現(xiàn)狀。選取鉑電阻Pt1000作為溫度傳感器，鉑電阻采用三線制接法。電橋電路中輸出的模擬電壓經(jīng)過放大后，輸入至AD轉(zhuǎn)換器中變?yōu)閿?shù)字信號，再由處理器換算出相應(yīng)溫度，在硬件電路設(shè)計(jì)中對各部分子電路進(jìn)行了原理和功能的介紹，其中在對ΔΣADC配置時，根據(jù)系統(tǒng)要求對其分辨率、采樣率進(jìn)行相關(guān)參數(shù)配置。設(shè)計(jì)中主要針對的是實(shí)際溫度值獲取、溫度誤差補(bǔ)償?shù)脑O(shè)計(jì)，其中采用的主要方法是分段線性化和線性標(biāo)度變換相結(jié)合的方法。最后對系統(tǒng)進(jìn)行調(diào)試，以測試工程的運(yùn)行情況，首先使用PSoC的專用下載工具PSoC MiniProg對系統(tǒng)進(jìn)行下載燒寫接口調(diào)試，通過Visual Basic進(jìn)行通信測試，然后通過電阻箱模擬鉑電阻溫度測試。關(guān)鍵詞：溫度檢測；PSoC；；通信PT1000 ModbusAbstractTemperature is a mon and important physical parameter in the production daily life and industrial production, people have bee increasingly demanding of temperature measurement, mainly performances in the measurement accuracy, reliability, stability and so measurement is directly related to the major technical indicators such as product quality, production efficiency production the meanwhile, more and more attention is paid to the cost and portability of the temperature measurement Conventional temperature measuring system, the unit of temperature measurement is posed of analog temperature sensor, a high performance amplifier, A/D converter and controlled by the SingleChip Microputer, Therefore, it not only needs more peripheral device, but also the hardware cost is programmable system on a chip have integrated so many analog and digital blocks that plenty of control tasks can be pleted in the chip, and the capability of programming configured dynamically make it more flexible, because of controlled easily and relatively low production costs, so it is widely used in industrial production paper designs a temperature measurement system with PSoC programmable system on chip as the core, which use Pt1000 as temperature sensor, make use of the analog and digital IP core resources and munication with the host puter adopting the modbus design uses the collector temperature produced by their pany, integrated as a measurement collector system of high aims at a high density and high precision monitor, and can be applied to the condition with a number of thermal , this paper introduces the background and significance of the research, and analyzes the research status of the temperature measurement technology and the PSoC programmable system on hardware which uses the programmable system on chipCY8C5868AXILP032 as the core of the system designs of the entire circuit are four subsystems, including temperature acquisition module,amplifier module, A/D converter module, munication the Pt1000 platinum resistance using threewire connection as temperature signal input uses a unique bridge circuit as measurement technology which has its advantages in antijamming capability, the impact of lead resistance, the bridge and measuring circuit isolated voltage from the bridge circuit is amplified and converted into digital signal, then acquire corresponding temperature through the processor, and introduce the principle and function of each subsystem in the design of hardware to system requirements, ΔΣADC is configured the