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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。
Programmable Universal Filter
The C-message filter, which simulates the frequency response of the human ear, is a commonly specified test and measurement filter for voice, audio, and telecomunication applications in the U.S. In Europe, a close relative is a psophometri...
2009-04-18 標(biāo)簽：濾波器 1238
Distributed Temperature Sensin
Abstract: Systems with multiple "hot spots" often require several temperature sensors or temperature switches. This application note discusses the use of temperature sensors with analog, digital, and PWM interfaces in such systems. ...
2009-04-18 標(biāo)簽：傳感器Temperature 1681
How to Simplify the Interface
Abstract: Temperature is an analog quantity, but digital systems often use temperature to implement measurement, control, and protection functions. If you apply the right techniques and components, the necessary conversion of analog temper...
2009-04-18 標(biāo)簽：傳感器 757
Using MAX1298/MAXAchieving Hig
The MAX1298/MAX1299 analog-to-digital converters with an internal temperature sensor have a guaranteed ±1°C accuracy over the extended temperature range (-40°C to 85°C), the best temperature-sensor accuracy over this range of any part ...
Low-Cost Anemometer Fights Dus
Abstract: This application note describes a low-cost circuit that can detect when a chassis fan filter has become clogged with dust. It does this by using a temperature sensor to determine the rate of cooling of a transistor in the air pat...
Circuit Monitors Board, Air, a
Abstract: A single temperature sensor and voltage monitor IC can monitor temperatures in multiple locations. The MAX6656 includes an on-chip "local" temperature sensor and can also measure the temperatures of two remote thermal diodes (eit...
IC Temperature Sensors Find th
Abstract: This application note discusses the operating concepts behind temperature sensor ICs and introduces the MAX1617, the first temperature sensor IC to measure the temperature of a remote thermal diode which allows accurate monitorin...
2009-04-18 標(biāo)簽：傳感器 1288
Interfacing to the DS1631 Digi
Abstract: This application note introduces the user to software for interfacing a DS5000 (8051 compatible) microcontroller to the DS1631 temperature sensor. The DS1631 incorporates a standard 2-wire serial digital interface. Software code ...
DS1847/DS1848 Temperature Coef
Abstract: Abstract: Both the DS1847 and DS1848 feature two 256-position digital resistors and lookup tables (LUT) to automatically adjust the resistance over a temperature range of -40°C to 95°C. The DS1848 also features 128 bytes of use...
2009-04-18 標(biāo)簽：電阻器 945
Simplify Isolated Temperature
Abstract: Many temperature sensing applications require galvanic isolation of the sensor. Fortunately, several low-cost temperature-sensing integrated circuits (ICs) are easy to isolate. This application note shows two approaches to isolat...
2009-04-17 標(biāo)簽：傳感器 1052
White Paper 5: Using 1-Wire AP
Abstract: All 1-Wire? device data sheets describe two sets of commands. The first set referred to as ROM Function Commands are used for device identification and selection. The second set is often called Memory Function Commands but ma...
2009-04-17 標(biāo)簽：ROM 1193
Curve Fitting the Error of a B
Abstract: A mathematical method is presented in this application note that allows the user to improve the accuracy of bandgap-based digital temperature sensors. This method increases the accuracy by compensating for the offset and curvatur...
Simple Circuit Protects System
Abstract: Using a temperature switch and fan driver IC along with a remote diode temperature switch provides thermal protection and simple fan drive functions for a system. This 2-chip circuit provides fan control, over-t...
Circuit Generates Analog Fan-S
Abstract: A linear circuit measures temperature and controls the speed of a cooling fan by generating a variable supply voltage for the fan. Fan noise is becoming a larger issue as more electronic equipment enters the off...
2009-04-17 標(biāo)簽：控制電路 1269
Circuit Inverts Temperature-Se
Abstract: A unique circuit for inverting the output signal of a temperature sensor such as the MAX6607 and MAX6608 without using precision components or references. The inverted signal is referenced to an analog-to-digital converter (ADC) ...
2009-04-17 標(biāo)簽：Temperature 1462
Temperature Sensor Has One Dig
Abstract: Digital temperature sensors are available with a variety of serial interfaces of varying complexity. This application note shows how to use one family of thermal monitor ICs with a very simple 2-wire (clock in, data out) digital ...
2009-04-17 標(biāo)簽：溫度傳感器 1943
Networked Temperature Monitori
Abstract: An IP-based networked sensor monitor can easily be created through the combination of the Tiny Internet Interfaces (TINI?) platform, 1-Wire? sensors, and the appropriate Java? software. The TINI platform provides th...
2009-04-17 標(biāo)簽：傳感器 610
Fan Speed Control is Cool!
Abstract: Temperature-based fan control is a necessity in a growing number of systems, both to reduce system noise and to improve fan reliability. When fan control is augmented by fan speed monitoring, a speed control loop can be implement...
2009-04-17 標(biāo)簽：控制器 4852
Applying and Using the DS1620
Abstract: The DS1620 digital thermometer and thermostat provides three thermostat outputs (THIGH, TLOW and TCOM) that can be used to control a fan or heater. There are two user-programmable thresholds (TH and TL) that control the three out...
2009-04-17 標(biāo)簽：控制器 781
DS18B20-PAR/DS18S20-PAR/DS1822
Abstract: This application note describes how the DS18B20-PAR, DS18S20-PAR and DS1822-PAR temperature sensor integrated circuits (ICs) can greatly simplify the mechanical aspects of implementing parasite power in remote or probe type appli...
Compensating for Ideality Fact
Abstract: When using an external thermal diode to measure temperature, the accuracy of the temperature measurement depends on the characteristics of the external diode. Two critical...
How to Interpret DS1847/DS1848
How to Interpret DS1847/DS1848 Temperature Readings Abstract: The DS1847 and DS1848 have...
How to Interpret DS1852 Temper
Abstract: The DS1852 is a digital potentiometer with five analog inputs that can be used in conjunction with the potentiometers to gather feedback information about an analog system, as well as provide analog control functions. Its intende...
White Paper 7: Thermochron Mis
Abstract: The applications for the Thermochron range from shipping monitoring of perishable goods or containers of temperature-sensitive chemicals to process verification. The authenticity of the temperature measurements are important sinc...
2009-04-17 標(biāo)簽：存儲(chǔ)器 564
Speed Control For Isolated -48
Abstract: A circuit is shown that allows a MAX6650 fan speed regulator IC to control a high-voltage fan on the other side of an isolation barrier. Chips are available to monitor and control ventilation fans. Less common a...
How to Interpret DS1854, DS185
Abstract: The DS1854, DS1857, and DS1858 monitor VCC, ambient temperature, and external analog inputs. This application note explains how to interpret the values stored in the Main Device SRAM and translate them into temperature and voltag...
2009-04-17 標(biāo)簽：DS1858 1026
Demystifying Sigma-Delta ADCs
Abstract: This in-depth article covers the theory behind a Delta-Sigma analog-to-digital converter (ADC). It specifically focuses on the difficult to understand key digital concepts of over-sampling, noise shaping, and decimation filtering...
2009-04-17 標(biāo)簽：Converter 1599
4mA–20mA Loop Powered Temperat
Abstract: A simple circuit that allows a 4mA–20mA to power an analog temperature sensor. This circuit uses an analog temperature sensor, op amp, transistor, and low-dropout linear regulator to provide a 4mA–20mA outpu...
2009-04-17 標(biāo)簽：傳感器Temperature 1800
HFAN-08.2.1: PWM Temperature C
Abstract: This article describes a thermoelectric cooler (TEC) temperature controller designed for maintaining the temperature of a laser diode (or other components) within 0.1°C This article describes a thermoelectric c...
2009-04-17 標(biāo)簽：調(diào)節(jié)器Temperature 3176
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