Hva er en digital temperatursensor? Design av DS18B20 sensorsonde

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 er en ofte brukt digital temperatursensorprobebrikke, som sender ut et digitalt signal. Den har egenskapene til en liten sensorsonde, lave krav til maskinvaredesign, sterk anti-interferensevne og høy presisjon. Den digitale temperatursensoren DS18B20 er enkel å koble til, og kan brukes i mange anledninger etter at sonden er pakket. For eksempel rørledningstype, gjenget type, magnetadsorpsjonstype, pakketype i rustfritt stål, ulike modeller, inkludert LTM8877, LTM8874, osv.
The appearance of the probe is mainly changed according to different application occasions. The packaged DS18B20 can be used for cable trench temperature measurement, blast furnace water circulation temperature measurement, boiler temperature measurement, machine room temperature measurement, agricultural greenhouse temperature measurement, clean room temperature measurement, ammunition depot temperature measurement and other non-extreme temperature occasions. Wear-resistant and collision-resistant, liten størrelse, easy to use, various packaging forms, suitable for various small space equipment digital temperature measurement and control fields.

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

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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, miljøovervåking og andre felt, such as temperature display of household appliances, precise industrial measurement, etc.‌.

Application scenarios
DS18B20 digital temperature sensors have a wide range of applications in many fields, including:

‌Husholdningsapparater‌: Used for temperature display and control, providing accurate temperature measurement.
‌Industrial control‌: 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 vanntett temperatursensorprobe + Terminaladaptermodul med trådsett

IP68 vanntett temperatursonde i rustfritt stål 18B20 til 485 temperaturføler

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.

The temperature sensor supports the “one-wire bus” interface (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.
Justerbar oppløsning: 9 – 12 bit; Temperaturområde: -55 ℃ til +125 ℃; Produksjon : rød (VCC), gul (DATA), svart (GND)
DS18B20 temperatursensor: Størrelsen på rustfritt stålhus er ca.. 6 x 50 mm/ 0.2 x 2 tomme, og den digitale temperaturens termiske kabel har en total lengde på ca. 1 m/ 39.4 tomme, som er lang nok til å dekke dine behov.
YAXUN DS18B20 temperature sensor is compatible with Raspberry Pi, og brukes mye i temperaturovervåking av kabelgrøft, kjele, hva, Agricultural Greenhouse, rent rom, osv.