Co je digitální snímač teploty? Konstrukce senzorové sondy DS18B20

A digital temperature sensor is a device that measures temperature and converts it into a digital reading that can be input into a microcontroller or other logic device. DS18B20 Digital temperature sensors use integrated circuits to provide accurate temperature readings. They are often used in consumer electronics, such as digital thermometers. DS18B20 je běžně používaný čip sondy digitálního snímače teploty, který vydává digitální signál. Má vlastnosti malé senzorové sondy, nízké požadavky na design hardwaru, Silná schopnost protiinterference a vysoká přesnost. Digitální teplotní senzor DS18B20 lze snadno zapojit, a lze jej použít při mnoha příležitostech poté, co je sonda zabalena. Například typ potrubí, typ závitového, Typ adsorpce magnetu, typ balení z nerezové oceli, různé modely, včetně LTM8877, LTM8874, atd.
The appearance of the probe is mainly changed according to different application occasions. The packaged DS18B20 can be used for cable trench temperature measurement, měření teploty oběhu vody ve vysoké peci, měření teploty kotle, měření teploty ve strojovně, měření teploty zemědělského skleníku, měření čisté pokojové teploty, ammunition depot temperature measurement and other non-extreme temperature occasions. Wear-resistant and collision-resistant, malá velikost, snadné použití, various packaging forms, suitable for various small space equipment digital temperature measurement and control fields.

DC 12V LED Digital Thermometer Temp Sensor Meter NTC Probe -50 ~ 110°C Detector

Range(-55℃~ +125℃) 6mm Temperature Probe Sensors for Arduino Measuring The Air Temperature, Liquids DS18B20-3M-5

Warehouse Series Digital Probe Stainless Steel Encapsulated SNS-TMP DS18B20 with 1 Meter

These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter. Its main features include:

‌High-precision measurement‌: DS18B20 provides 9-bit to 12-bit Celsius temperature measurement accuracy and supports multi-point temperature measurement networks‌.
‌Single-wire communication protocol‌: Data communication and power supply are carried out through a single data line, which simplifies hardware design‌.
‌Wide operating voltage range‌: Supports operating voltages from 3.0V to 5.5V, suitable for battery-powered applications‌.
‌Wide application fields‌: It has wide applications in consumer electronics, industrial control, environmental monitoring and other fields, such as temperature display of household appliances, precise industrial measurement, etc.‌.

Scénáře aplikací
DS18B20 digital temperature sensors have a wide range of applications in many fields, včetně:

‌Household spotřebiče‌: Used for temperature display and control, providing accurate temperature measurement.
‌Industriální kontrola‌: Provides reliable solutions in precise industrial measurement.
‌Environmental monitoring‌: Suitable for various environmental monitoring occasions, such as temperature measurement in machine rooms, agricultural greenhouses, ammunition depots, etc.‌12.

DS18B20 Vodotěsná sonda teplotního senzoru + Modul terminálového adaptéru se sadou drátů

IP68 vodotěsná teplotní sonda z nerezové oceli 18B20 až 485 teplotní senzor

Digital LCD Fridge Thermometer Water Temperature with DS18B20 sensor Probe Fahrenheit

Hardware connection method
When connecting DS18B20 to a microcontroller, you need to follow the following basic steps:
‌Determine the pin function‌: DS18B20 has three pins, namely VDD (power), DQ (data line), GND (ground line)‌.
‌Power connection‌: The VDD pin is connected to a 3.3V or 5V power supply, depending on the operating voltage of the microcontroller‌.
‌Data line connection‌: The DQ pin is connected to VCC through a pull-up resistor (typical value is 4.7kΩ).
‌Ground connection‌: The GND pin is directly connected to the ground line of the microcontroller‌.

Senzor teploty podporuje “one-wire bus” rozhraní (1-Wrie), the measurement temperature range is -55 °C ~ +125 ° C., in the range of -10 °C ~ +85 ° C., the accuracy is plus or minus 0.5 ° C.
Adjustable resolution: 9 – 12 bit; Temperature range: -55 ℃ to +125 ℃; Output : red (VCC), žluť (DATA), černý (GND)
DS18B20 temperature sensor: the size of stainless steel housing is approx. 6 x 50 mm/ 0.2 x 2 palec, and the digital temperature thermal cable has a total length of approx 1 m/ 39.4 palec, which is long enough to meet your needs.
YAXUN DS18B20 temperature sensor is compatible with Raspberry Pi, and is widely applied in temperature monitoring of cable trench, kotel, zer, agricultural greenhouse, clean room, atd.