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DS18B20傳感器元件

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公司名稱北京華夏日盛科技有限公司
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所在地北京市
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更新時(shí)間2025/2/7 10:01:40
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北京華夏日盛科技有限公司專業(yè)生產(chǎn)、銷售溫濕度傳感器、變送器、控制儀、采集模塊等系列產(chǎn)品。是按照國家技術(shù)*和*的要求，2002年在北京*注冊的獨(dú)立法人機(jī)構(gòu)。地處中關(guān)村核心商務(wù)區(qū)附近，依托清華等高校的科研和技術(shù)力量，承接中關(guān)村日新月異的商業(yè)、科技、文化、經(jīng)濟(jì)輻射，具有*的商業(yè)資訊優(yōu)勢、科技信息優(yōu)勢、地域人文優(yōu)勢、知識經(jīng)濟(jì)優(yōu)勢，專注于各行業(yè)、領(lǐng)域溫度測控方案解決。產(chǎn)品廣泛應(yīng)用于汽車、電力、石油、冶金、化工、農(nóng)業(yè)、水利、建筑、倉儲、醫(yī)療、食品、計(jì)算機(jī)等行業(yè)，包括電源、開關(guān)、變電站、配電柜、機(jī)床、鍋爐、熱水器、管道、電纜、液體、氣體、倉庫、糧庫、冷庫、煙草庫、溫室、大壩、墻體、火災(zāi)報(bào)警器等環(huán)境、場合、部位的溫度監(jiān)測、檢測、巡檢、控制。典型應(yīng)用：數(shù)字化糧情溫度監(jiān)測系統(tǒng)、冷庫溫度監(jiān)測系統(tǒng)、物資庫溫度檢測系統(tǒng)、以太網(wǎng)多點(diǎn)溫度監(jiān)測系統(tǒng)、鍋爐溫控系統(tǒng)、計(jì)算機(jī)房溫控系統(tǒng)、變電站溫度巡檢系統(tǒng)、電纜溝溫度巡檢系統(tǒng)、冰箱檢測線檢測系統(tǒng)、冷鏈管理監(jiān)控系統(tǒng)、集中供熱供暖監(jiān)控系統(tǒng)等。公司成立以來，始終奉行“傾力滿足顧客要求，積極推進(jìn)傳感技術(shù)進(jìn)步”的宗旨，按照“質(zhì)量*，保質(zhì)保量；客戶*，服務(wù)周到；持續(xù)改進(jìn)，精益求精”的質(zhì)量方針，努力為客戶提供滿意的產(chǎn)品和服務(wù)。

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主營產(chǎn)品：溫度傳感器，溫度變送器，溫度采集器，溫度監(jiān)控系統(tǒng)

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DS18B20400)this

DS18B20傳感器元件產(chǎn)品信息

DS18B20

產(chǎn)品說明：

FEATURES
Unique 1-Wire® interface requires only one
port pin for communication
Each device has a unique 64-bit serial code
stored in an onboard ROM
Multidrop capability simplifies distributed
temperature sensing applications
Requires no external components
Can be powered from data line. Power supply
range is 3.0V to 5.5V
Measures temperatures from C55°C to
+125°C (C67°F to +257°F)
0.5C accuracy from C10°C to +85°C
Thermometer resolution is user-selectable
from 9 to 12 bits
Converts temperature to 12-bit digital word in
750ms (max.)
User-definable nonvolatile (NV) alarm
settings
Alarm search commａnd identifies and
addresses devices whose temperature is
outside of programmed limits (temperature
alarm condition)
Available in 8-pin SO (150mil), 8-pin SOP,
and 3-pin TO-92 packages
Software compatible with the DS1822
Applications include thermostatic controls,
industrial systems, consumer products,
thermometers, or any thermally sensitive
system

DESCRIPTION
The DS18B20 Digital Thermometer provides 9 to 12Cbit centigrade temperature measurements and has
an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18B20
communicates over a 1-Wire bus that by definition requires only one data line (ａnd ground) for
communication with a central microprocessor. It has an operating temperature range of C55°C to +125°C
and is accurate to 0.5C over the range of C10°C to +85°C. In addition, the DS18B20 can derive power
directly from the data line (“parasite power”), eliminating the need for an external power supply.
Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same
1Cwire bus; thus, it is simple to use one microprocessor to control many DS18B20s distributed over a
large area. Applications that can benefit from this feature include HVAC environmental controls,
temperature monitoring systems inside buildings, equipment or machinery, and process monitoring and
control systems.