เซนเซอร์วัดอุณหภูมิแบบดิจิตอลคืออะไร? การออกแบบหัวเซนเซอร์ 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 เป็นชิปโพรบเซ็นเซอร์อุณหภูมิดิจิตอลที่ใช้กันทั่วไป, ซึ่งส่งสัญญาณดิจิทัลออกมา. มีลักษณะเป็นเซนเซอร์โพรบขนาดเล็ก, ข้อกำหนดการออกแบบฮาร์ดแวร์ต่ำ, ความสามารถในการป้องกันการรบกวนที่แข็งแกร่งและความแม่นยำสูง. เซ็นเซอร์อุณหภูมิดิจิตอล DS18B20 ง่ายต่อการต่อสาย, และสามารถใช้ได้หลายครั้งหลังจากบรรจุโพรบแล้ว. เช่นประเภทท่อ, ประเภทเกลียว, ประเภทการดูดซับแม่เหล็ก, ประเภทบรรจุภัณฑ์สแตนเลส, รุ่นต่างๆ, รวมถึง LTM8877, LTM8874, ฯลฯ.
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, ขนาดเล็ก, easy to use, 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.‌.

สถานการณ์การใช้งาน
DS18B20 digital temperature sensors have a wide range of applications in many fields, รวมทั้ง:

‌Household appliances‌: 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 หัวเซนเซอร์วัดอุณหภูมิกันน้ำ + โมดูลอะแดปเตอร์เทอร์มินัลพร้อมชุดสายไฟ

โพรบวัดอุณหภูมิสแตนเลสกันน้ำ IP68 18B20 to 485 เซ็นเซอร์อุณหภูมิ

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 องศาเซลเซียส, in the range of -10 °C ~ +85 องศาเซลเซียส, the accuracy is plus or minus 0.5 องศาเซลเซียส
Adjustable resolution: 9 – 12 bit; ช่วงอุณหภูมิ: -55 ℃ to +125 ℃; Output : red (VCC), yellow (DATA), สีดำ (GND)
DS18B20 temperature sensor: the size of stainless steel housing is approx. 6 x 50 mm/ 0.2 x 2 นิ้ว, and the digital temperature thermal cable has a total length of approx 1 m/ 39.4 นิ้ว, 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, boiler, zer, agricultural greenhouse, clean room, ฯลฯ.