溫濕度測(cè)量?jī)x外文文獻(xiàn)翻譯、中英文翻譯

1、 外文翻譯英文原文：Temperature and humidity measuring instrumentIntroduction Temperature and humidity measurement is a modern newly developed measurement field, especially the humidity measurement is to continue moving forward. Experienced a length method, dry and wet until today the course of the measuremen

2、t, humidity measurement technology is maturing. Today, we are no longer satisfied with the measurement of the temperature and humidity, especially in some places to monitor directly the requirements of real-time measure and record the temperature and humidity changes in the whole process, and based

3、on these changes identified during storage and transportation security, led to a new temperature and humidity measuring instrument was born. Temperature and humidity measuring instrument is the temperature and humidity parameters were measured according to a predetermined time interval stored in the

4、 internal memory, in the completion of the recording function will be coupled to a PC, use the adapter software data stored in accordance with values time analysis instrument. The instrument can determine the storage and transportation process, experiment process without any compromise product safet

5、y incident. MSP430F437 Introduced The MSP430 MCU main features are as follows:1) Ultra-low power consumption. MSP430 MCU supply voltage 1.8 to 3.6V low voltage RAM data retention mode power consumption of only 0.1uA active mode power 250uA/MIPS, IO input port leakage current of only 50nA.2) Powerful

6、 processing capability. The MSP430 MCU 16-bit microcontroller, reduced instruction set architecture with the most popular one clock cycle to execute an instruction, the MSP430 instruction speeds of up to 8MHz oscillator is 8MIPS.3) High-performance analog technology and a wealth of on-chip periphera

7、l modules. The MSP430 monolithic organic combination of TIs high-performance analog technology, each member of the rich on-chip peripherals are integrated. Depending on the model of the different possible combinations of the following modules: watchdog, analog comparator A timer A, timer B, serial 0

8、,1, hardware multiplier, LCD driver, 10/12/14-bit ADC, 12 DAC IIC bus, direct data access, port 1 to 6, the basic timer.4) The system is stable. Power-on reset, first initiated by the DC0 CPU, to ensure that the program starts executing from the correct position to ensure crystal oscillator start-up

9、 and stabilization time. The software can then set the appropriate control bits of the register to determine the final system clock frequency. If the crystal oscillator is used as the CPU clock MCLK failure, the DCO will start automatically, in order to ensure the normal operation of the system. Thi

10、s structure and operational mechanism in the current series microcontroller is unique.5) Convenient and efficient development environment. MSP430 series OTP type, three types of FLASH-ROM, the domestic large-scale use FLASH. The development of these devices means, after the successful development of

11、 the OTP and ROM-type device using a dedicated emulator programmer or chip cover touch. FLASH type is very convenient development and debugging environment, because the device on-chip JTAG debug interface, as well as the electric flash FLASH memory using the first through the JTAG interface to downl

12、oad the program to the FLASH, run by the JTAG interface control program read the on-chip CPU status, and memory contents and other information for designers debug the entire development can be carried out in the same software integrated environment. Which only requires a PC and a JTAG debugger, with

13、out the need for a dedicated emulator and programmer.Temperature And Humidity Sensor The SHT7x temperature and humidity sensor characteristics are as follows:1) The temperature and humidity sensor signal is amplified conditioning, A / D converter, all integrated on one IIC bus interface;2) Given cal

14、ibration relative humidity and temperature output;3) IIC bus with industry-standard digital output interface;4) With dewpoint calculation output function;5) With excellent long-term stability;6) Humidity value output resolution of 14 The temperature output resolution of 12 bits, and programmable;7)

15、Small size (7.65 x 5.08 x 23.5mm) Surface Mount;8) Having reliable the CRC data transmission checking function;9) The chip load calibration coefficients can guarantee 100% interchangeability;AT25256 Introduction Temperature and humidity data storage chip SPI interface uses ATMEL Corporations low-vol

16、tage serial EEPROM AT25256. AT25256 is mainly applied to low-power occasion the internal accordance with 32K x 8-bit organization, can work at 3.3V, the maximum serial clock frequency as to 2.1MHz. Support for 64-byte page write mode and byte write mode. AT25256 by setting the write-protect pin / WP

17、 level to set the chip read-only or writable state. Serial Peripheral Interface (SPI) bus technology is a synchronous serial interface, the hardware features a strong, SPI software is quite simple, so that the CPU has more time to deal with other matters. SPI bus can be connected to multiple host MC

18、U, equipped with SPI interface output devices, output devices, such as LCD drivers, A / D conversion and other peripherals can also be a simple connection to a single TTL shift register chip. The bus allows you to connect multiple devices, but only one device at any moment as the host. SPI bus clock

19、 line is controlled by the host, in addition to data lines: host input / output line from the machine and the host output / slave input line. Host and which slave communication through the slave strobe line selection. Application SPI system can be simple, complex and can take many forms: (1) a host

20、MCU and the slave MCU; (2) multiple MCU are connected to each other into a multi-host system; (3) a host MCU and slave peripherals.Segment LCD Display Principle LCD display principle is to use the physical characteristics of the liquid crystal born, when power is turned on, arranged order so light b

21、y; arranged confusion is not energized, to prevent the light to pass through. Light to pass through and not through a combination of an image is displayed on the screen. In laymans terms, the liquid crystal display is the middle of the two glass clip a layer of liquid crystal material, the liquid cr

22、ystal material to change their light transmission in the signal under the control of the state, so you can see the image in front of the glass panel. LCD ambient light to display information, the LCD itself is not self-luminous, LCD power consumption is very low, more suitable for single-chip low-po

23、wer applications. In addition, the LCD can only use low-frequency AC voltage drive, the DC voltage will damage the LCD.There are many types of LCD segment liquid crystal character LCD, graphical LCD. Segment LCD inexpensive, simple to use, is widely used in a variety of microcomputer application sys

24、tem. MSP430 LCD driver module has four driving method, respectively, for static drive, 2MUX drive, 3MUX, Drivers, 4MUX drive. Static driving method, in addition to the public badly in need of a pin, each section of the drive each one pin. If the design involves a lot of number of segments, you need

25、to take up the many pin. In order to reduce the pin number, you can select multiple drive needed: 2MUX drive, drive, 3MUX 4MUX driving method. Increase the number of public-pole, can greatly reduce the number of pins. Need to drive more segments, the more obvious effects.Conclusion The design requir

26、ements to simultaneously detect the temperature and humidity. From the temperature and humidity sensor signal IIC bus to enter MSP430F437 MSP430F437, temperature and humidity data on the one hand to send the LCD display; the other hand, the temperature and humidity data is stored in AT25256 stored t

27、emperature and humidity data can be transmitted via RS232 bus to the PC, In the PC application, you can curve shows the temperature and humidity data, and can print the report. This design uses the MSP430 MCU measurement of temperature and humidity, display, storage, transmission, printing and other

28、 functions. But also through the button on the temperature and humidity measurement time interval, whether storage, starting time and other parameters set. In addition, the entire system can be connected to external 9V DC power supply, you can use a 9V lithium battery-powered, low-power design ultra

29、-low power MSP430 MCU, and program design, making the whole system very power, particularly suitable for hand-held meter.中文翻譯：溫濕度測(cè)量?jī)x 1 引言 溫濕度測(cè)量是現(xiàn)代測(cè)量新發(fā)展出來(lái)的一個(gè)領(lǐng)域，尤其濕度的測(cè)量更是不斷前進(jìn)。經(jīng)歷了長(zhǎng)度法、干濕法直至今天的電測(cè)量的歷程，使?jié)穸葴y(cè)量技術(shù)日漸成熟。時(shí)至今日，由于我們不再滿足于溫濕度的測(cè)量，尤其是一些場(chǎng)所的監(jiān)控直接要求實(shí)時(shí)測(cè)量并記錄其全過(guò)程溫濕度變化，并依據(jù)這些變化認(rèn)定儲(chǔ)運(yùn)過(guò)程的安全性，導(dǎo)致了新的溫濕度測(cè)量?jī)x的誕生。溫濕度測(cè)量?jī)x是將

30、溫濕度參數(shù)進(jìn)行測(cè)量并按照預(yù)定的時(shí)間間隔將其儲(chǔ)存在內(nèi)部存儲(chǔ)器中，在完成記錄功能后將其聯(lián)接到PC機(jī)，利用適配軟件將存儲(chǔ)的數(shù)據(jù)提出并按其數(shù)值、時(shí)間進(jìn)行分析的儀器。利用該儀器可確定儲(chǔ)運(yùn)過(guò)程、實(shí)驗(yàn)過(guò)程等相關(guān)過(guò)程沒(méi)有任何危及產(chǎn)品安全的事件發(fā)生。 2 MSP430F437介紹 MSP430單片機(jī)主要特點(diǎn)如下：1) 超低功耗。MSP430系列單片機(jī)的電源電壓采用1.83.6V低電壓，RAM數(shù)據(jù)保持方式下耗電僅僅0.1uA，活動(dòng)模式耗電250uA/MIPS，IO輸入端口的漏電流最大僅僅50nA。2) 強(qiáng)大的處理能力。MSP430系列單片機(jī)是16位單片機(jī)，采用了目前最流行的精簡(jiǎn)指令集結(jié)構(gòu)，一個(gè)時(shí)鐘周期可以執(zhí)行一條

31、指令，使MSP430在8MHz晶振工作時(shí)，指令速度可達(dá)8MIPS。3) 高性能模擬技術(shù)及豐富的片上外圍模塊。MSP430系列單片有機(jī)結(jié)合TI的高性能模擬技術(shù)，各成員都集成了較豐富的片內(nèi)外設(shè)。視型號(hào)的不同可能組合有以下功能模塊：看門(mén)狗，模擬比較器A，定時(shí)器A，定時(shí)B，串口0，1，硬件乘法器，液晶驅(qū)動(dòng)器，10位/12/14位ADC，12位DAC，IIC總線，直接數(shù)據(jù)存取，端口16，基本定時(shí)器等。4) 系統(tǒng)工作穩(wěn)定。上電復(fù)位后，首先由DC0啟動(dòng)CPU，以保證程序從正確的位置開(kāi)始執(zhí)行，保證晶體振器有足夠的起振及穩(wěn)定時(shí)間。然后軟件可設(shè)置適當(dāng)?shù)募拇嫫鞯目刂莆粊?lái)確定最后的系統(tǒng)時(shí)鐘頻率。如果晶體振蕩器在用作C

32、PU時(shí)鐘MCLK時(shí)發(fā)生故障，DCO會(huì)自動(dòng)啟動(dòng)，以保證系統(tǒng)正常工作。這種結(jié)構(gòu)和運(yùn)行機(jī)制，在目前各系列單片機(jī)中是絕無(wú)僅有的。5) 方便高效的開(kāi)發(fā)環(huán)境。目前MSP430系列有OTP型、FLASH型和ROM型3種類(lèi)型，國(guó)內(nèi)大量使用的是FLASH型。這些器件的開(kāi)發(fā)手段不同，對(duì)于OTP型和ROM型的器件是使用專(zhuān)用仿真器開(kāi)發(fā)成功之后再燒寫(xiě)或掩摸的芯片。對(duì)于FLASH型則有十分方便的開(kāi)發(fā)調(diào)試環(huán)境，因?yàn)槠骷瑑?nèi)有JTAG調(diào)試接口，還有可電擦寫(xiě)的FLASH存儲(chǔ)器，因此采用先通過(guò)JTAG接口下載程序到FLASH內(nèi)，再由JTAG接口控制程序運(yùn)行，讀取片內(nèi)CPU狀態(tài)，以及存儲(chǔ)器內(nèi)容等信息供設(shè)計(jì)者調(diào)試，整個(gè)開(kāi)發(fā)都可以在同

33、一個(gè)軟件集成環(huán)境中進(jìn)行。這種方式只需要一臺(tái)PC機(jī)和一個(gè)JTAG調(diào)試器，而不需要專(zhuān)用仿真器和編程器。 3 溫濕度傳感器介紹 SHT7x溫濕度傳感器的主要特性如下：1) 將溫濕度傳感器、信號(hào)放大調(diào)理、A/D轉(zhuǎn)換、IIC總線接口全部集成于一片；2) 可給出全校準(zhǔn)相對(duì)濕度及溫度值輸出；3) 帶有工業(yè)標(biāo)準(zhǔn)的IIC總線數(shù)字輸出接口；4) 具有露點(diǎn)值計(jì)算輸出功能；5) 具有卓越的長(zhǎng)期穩(wěn)定性；6) 濕度值輸出分辨率為14位，溫度值輸出分辨率為12位，并且可編程；7) 小體積（7.655.0823.5mm），可表面貼裝；8) 具有可靠的CRC數(shù)據(jù)傳輸校驗(yàn)功能；9) 片內(nèi)裝載的校準(zhǔn)系數(shù)可保證100%互換性； 4 AT25256介紹溫度濕度數(shù)據(jù)存儲(chǔ)芯片采用ATMEL公司的SPI接口的低電壓串行EEPROM AT25256。AT25256主要適用于低功耗場(chǎng)合，內(nèi)部按照32K8位組織，可以工作在3.3V電壓下，最大串行時(shí)鐘頻率為2.1MHz。支持64字節(jié)的頁(yè)寫(xiě)方式以及字節(jié)寫(xiě)方式。另外，AT25256還可以通過(guò)設(shè)置寫(xiě)保護(hù)引腳/WP的電平來(lái)設(shè)置芯片的只讀或可寫(xiě)狀態(tài)。串行外圍設(shè)備接口SPI總線技術(shù)是一種同步串行接口，其硬