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MEMS/傳感技術(shù)
mems傳感器提供mems技術(shù)和傳感技術(shù)，涉及mems應(yīng)用、mems工藝及mems特點(diǎn)，還有傳感器知識(shí)與技術(shù)，是mems傳感器工程師最好的頻道。
Temperature Monitoring Using t
Abstract: The MAX1253/54 and MAX1153/54 system monitors are a low cost solution for monitoring multiple temperatures in a system. This application note explains how to measure temperature using remote sensing diodes in single-ended or diff...
2009-04-17 標(biāo)簽：Diode 2495
Portable Temperature Monitorin
Abstract: The design and implementation of a temperature logging circuit for under-the-hood use is described. Measurement results from the completed circuit are presented. Download SoftwareThe rewarding pursuit of...
2009-04-17 標(biāo)簽：傳感器Temperature 1751
Thermal Switches Provide Circu
Abstract: A pair of temperature switches control a thermal disconnect circuit for system temperature protection. The circuit "crowbars" the power supply when excessive temperature is detected by the thermal switches. A te...
2009-04-17 標(biāo)簽：傳感器 1116
DS1847/DS1848 Online Interacti
Abstract: The DS1847/DS1848 dual temperature-controlled nonvolatile (NV) variable resistors consist of two 256-position linear variable resistors and a direct-to-digital temperature sensor. The device is capable of setting and temperature-...
2009-04-17 標(biāo)簽：DS1847 960
DS2422 Trim Procedure and Soft
Abstract: Before it can accurately measure temperatures, the DS2422 needs to undergo a two-point trim. For the highest level of accuracy, this trim needs to take place as late as possible, i.e., with the end product that the DS2422 resides...
2009-04-17 標(biāo)簽：DS2422 833
PWM至線性信號(hào)轉(zhuǎn)換電路
摘要：本文介紹了一種將低電壓PWM信號(hào)轉(zhuǎn)換成放大、緩沖后的線性輸出的電路，適用于風(fēng)扇速度控制，允許在3.3V輸入時(shí)提供12V風(fēng)扇的線性控制。 Maxim提供各種PWM輸出的...
2009-04-17 標(biāo)簽：PWM轉(zhuǎn)換電路 2248
為系統(tǒng)測(cè)量和保護(hù)選擇溫度傳感器
摘要：對(duì)于那些想要測(cè)量系統(tǒng)中溫度的設(shè)計(jì)師來(lái)說(shuō)，有多種技術(shù)可供選用。熱敏電阻、熱電偶、RTD及溫度傳感器IC，它們?cè)谔囟ㄇ闆r下都具有相應(yīng)的優(yōu)勢(shì)及劣勢(shì)。本文對(duì)當(dāng)前幾種最常...
2009-04-17 標(biāo)簽：傳感器 645
Remote Monitoring System Sends
Abstract: This application note demonstrates how to make a simple system that monitors temperature and analog voltages remotely. On meeting certain alarm conditions, the system can send SMS messages, which are then converted to E-mail and ...
2009-04-17 標(biāo)簽：CAN總線 1153
MAX6650和MAX6651風(fēng)扇速度調(diào)節(jié)器在24V及48V
摘要：MAX6650和MAX6651是利用風(fēng)扇轉(zhuǎn)速反饋控制無(wú)刷直流風(fēng)扇轉(zhuǎn)速的風(fēng)扇轉(zhuǎn)速調(diào)節(jié)器，典型應(yīng)用中，風(fēng)扇一般采用5V至12V供電。本應(yīng)用筆記主要介紹如何利用MAX6650和MAX6651控制高壓風(fēng)扇...
2009-04-17 標(biāo)簽：MAX6650 2860
電阻電橋基礎(chǔ)
摘要：利用電橋電路精確測(cè)量電阻及其它模擬量的歷史已經(jīng)很久遠(yuǎn)。本文講述電橋電路的基礎(chǔ)并演示如何在實(shí)際環(huán)境中利用電橋電路進(jìn)行精確測(cè)量，文章詳細(xì)介紹了電橋電路應(yīng)用中...
RS-232 Powered Temperature Sen
Abstract: A temperature-sensor chip is powered by the Tx channel of an RS-232 interface chip, and the signal (a squarewave with frequency proportional to the sensor-package temperature) is returned via the Rx channel. A s...
PT100溫度變送器的正溫度系數(shù)補(bǔ)償
摘要：本文回顧了通用溫度傳感器的主要特性，重點(diǎn)介紹RTD PT100溫度變送器，并提供了一種簡(jiǎn)單的方法對(duì)PT100輸出信號(hào)進(jìn)行線性化處理和...
IR-Linked Temperature Sensor
Abstract: A circuit is described that transmits temperature data over an IR link, thus allowing isolation of the temperature sensor. The circuit consists of an IR transmitter, an IR receiver, and a temperature sensor. The...
2009-04-17 標(biāo)簽：Sensor 1478
Effect of PC Board Trace Width
Abstract: Most remote-diode temperature-sensor data sheets recommend 10-mil PC board trace widths, and 10-mil spacing between traces for connecting the sensor to the thermal diode. However, narrower traces and closer spacing may be used, a...
Circuit Converts PWM Fan Drive
Abstract: Circuit reduces acoustic noise by converting PWM fan drive to linear. Fans are a necessary part of many thermal management strategies, but fans can cause excessive levels of audible noise when operating at full ...
2009-04-17 標(biāo)簽：Controller 1921
精密計(jì)時(shí)—自動(dòng)化與大眾化
摘要：長(zhǎng)期以來(lái)電子計(jì)時(shí)一直缺少高精度的解決方案，主要原因是石英晶體的溫度特性較差。為了提高32.768kHz石英晶體的計(jì)時(shí)精度，設(shè)計(jì)人員采用了各種不同的技術(shù)。本文介紹了一...
Temperature-Based Fan Control
Abstract: This application note describes how to use a MAXQ2000 microcontroller to control DC fan speed and monitor temperature from a thermistor or iButton?. IntroductionWith its numerous features, the MAX...
2009-04-17 標(biāo)簽：Timer 1457
使用MAX6642代替其它熱敏二極管溫度傳感器
摘要：MAX6642是一款高精度、低成本遠(yuǎn)端/本地溫度傳感器?？梢愿鶕?jù)本設(shè)計(jì)指南用MAX6642代替其它傳統(tǒng)的溫度傳感器，例如MAX6617或MAX6657。 ...
MAX1464的片上溫度傳感器
摘要：MAX1464是一款高性能數(shù)字信號(hào)調(diào)理器，包括一個(gè)內(nèi)部溫度傳感器，該傳感器可用來(lái)校正與溫度相關(guān)的信號(hào)，或作為一個(gè)性能可與業(yè)界領(lǐng)先的溫度傳感器相媲美的獨(dú)立溫度計(jì)。本...
MAX1464數(shù)字傳感器信號(hào)調(diào)理器常見(jiàn)問(wèn)題解答
摘要：MAX1464是一款高性能、低成本、低功耗、多通道、基于微處理器的數(shù)字式傳感器信號(hào)調(diào)理器，該器件還集成了閃存和溫度傳感器。本文給出了用戶可能提出的各種各樣的問(wèn)題和...
2009-04-17 標(biāo)簽：傳感器 740
Telecomm Supply Powers Tempera
Abstract: The components shown enable this temperature-to-period converter (IC1) to interface with standard industrial logic levels, while operating on a -48V telecomm systems bus. The circuit presented features the MAX6576 digital tempera...
2009-04-17 標(biāo)簽：Sensor 1042
iButton傳感器和溫度/濕度數(shù)據(jù)記錄器綜述
摘要：本應(yīng)用筆記詳細(xì)介紹了一款基本iButton數(shù)據(jù)記錄器，說(shuō)明了該產(chǎn)品如何記錄溫度和/或濕度數(shù)據(jù)，并且給出了典型應(yīng)用實(shí)例。本文說(shuō)明了數(shù)據(jù)記錄器的配置、測(cè)試，以及如何通過(guò)...
2009-04-17 標(biāo)簽：傳感器 1473
Where Is Ground?
Abstract: For safety reasons we keep our circuits referenced to our surroundings. In most cases this is earth ground. This application note explains how a proper understanding of local circuit ground as a reference point frees our thinking...
2009-04-17 標(biāo)簽：電路 786
Calculating the Error Budget i
Abstract: This application note analyses the parameters that affect the errors in precision digital-to-analog converter (DAC) applications. The analysis focuses on the factors introduced by both the data converter and the voltage reference...
2009-04-17 標(biāo)簽：數(shù)模轉(zhuǎn)換器 731
Comparison of the DS18B20 and
Abstract: The DS18B20 and DS18S20 are two very popular 1-Wire digital thermometers. This application note explains the similarities and differences between these two parts, and guides customers in selecting the best part for an application...
Zero-Drift Instrumentation Amp
Abstract: This article examines the use of instrumentation amplifiers (IAs) for sensor applications. It highlights system challenges and implementation choices, describes new architectures for integrated-circuit IAs, and outlines applicati...
2009-04-17 標(biāo)簽：儀表放大器 1047
iButton傳感器和溫度/濕度數(shù)據(jù)記錄器綜述
摘要：本應(yīng)用筆記詳細(xì)介紹了一款基本iButton數(shù)據(jù)記錄器，說(shuō)明了該產(chǎn)品如何記錄溫度和/或濕度數(shù)據(jù)，并且給出了典型應(yīng)用實(shí)例。本文說(shuō)明了數(shù)據(jù)記錄器的配置、測(cè)試，以及如何通過(guò)...
2009-04-17 標(biāo)簽：傳感器 873
溫度、濕度模型和MIMO控制算法
溫度、濕度模型和MIMO控制算法 使用ecICP建模，控制器設(shè)計(jì)和參量設(shè)定，使用ecCST確定控制算法 ...
How to Use the DS1678 Real-Tim
How to Use the DS1678 Real-Time Event Recorder Abstract: This note demonstrates an application using the DS1678 real-time event recorder. The software example includes basic operating routines. A schematic of the application cir...
2009-03-31 標(biāo)簽：記錄器 1322
具有風(fēng)扇失效指示的監(jiān)控IC
具有風(fēng)扇失效指示的監(jiān)控IC 摘要：通過(guò)單片IC監(jiān)測(cè)風(fēng)扇的正常轉(zhuǎn)動(dòng)，該方案具有準(zhǔn)確、可靠、簡(jiǎn)單以及成本低等特點(diǎn)。 在許多設(shè)備中應(yīng)用的無(wú)刷直流風(fēng)扇對(duì)設(shè)備...
2009-03-31 標(biāo)簽：監(jiān)視器 855
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