Produktkategorien
- Thermischer Schutzschalter 20
- Sicherungskastenhalter 36
- Temperatursensor 67
- Thermischer schalter 64
- Autosicherung 19
- Sicherungen festschrauben 7
- Thermosicherung 32
- oberflächenmontierte Sicherungen 12
- Thermistor 22
- Sicherungshalter für Leiterplattenmontage 27
- Kabelbaum 6
- Flachsicherungshalter 17
- Thermostat 46
- Elektro-Sicherung 14
Produkt Tags
Funktionen und Anwendungen der Ds18b20-Sensorsonde
Welcher Sensor ist DS18B20?
DS18B20 ist ein häufig verwendeter digitaler Temperatursensor, Das gibt ein digitales Signal mit den Eigenschaften einer geringen Größe aus, Niedrige Hardware -Overhead, Starke Anti-Interferenz-Fähigkeit und hohe Präzision. Der DS18B20 Digitale Temperatursensor ist leicht zu verdrahten und kann nach der Verpackung in verschiedenen Anlässen verwendet werden, wie Pipeline -Typ, Gewindeart, Magnetadsorptionstyp, Verpackungstyp aus rostfreiem Stahl, und verschiedene Modelle, einschließlich LTM8877, LTM8874, usw.
A DS18B20 sensor probe is a small, digital temperature sensor that measures temperature using a 1-Wire communication protocol, allowing it to be connected to a microcontroller using only one data wire, making it ideal for applications where multiple temperature readings are needed from various locations with minimal wiring complexity; it is commonly used in applications like environmental monitoring, HVAC-Systeme, industrial process control, and even basic DIY projects due to its affordability and ease of use.
The core functionality of the DS18B20 Sensor Probe is its direct-to- digital temperature sensor. The resolution of the tempera- ture sensor is user-configurable to 9, 10, 11, oder 12 bits, corresponding to increments of 0.5°C, 0.25°C, 0.125°C, and 0.0625°C, jeweils. The default resolution at power-up is 12-bit.
The working principle of DS18B20 is that the oscillation frequency of the low temperature coefficient crystal is little affected by temperature, and is used to generate a fixed frequency pulse signal to be sent to counter 1. The oscillation frequency of the high temperature coefficient crystal changes significantly with temperature, and the generated signal is used as the pulse input of counter 2. The number of bits of the obtained temperature value varies with the resolution, and the delay time during temperature conversion is reduced from 2s to 750ms.
Key features of a DS18B20 sensor probe:
Digital Temperature Measurement:
Provides a precise digital temperature reading in Celsius, with customizable resolution between 9-bit and 12-bit.
One-Wire Interface:
Communicates with a microcontroller using only one data line, allowing for multiple sensors to be connected on a single pin.
Unique Identifier:
Each sensor has a unique 64-bit serial code, enabling identification of individual sensors on a bus.
Parasite Power Mode:
Can be powered directly from the data line in certain situations, eliminating the need for separate power supply.
Wide Temperature Range:
Operates over a broad temperature range, typically from -55°C to 125°C.
Applications of the DS18B20 sensor probe:
Its appearance is mainly changed according to different application occasions. The packaged DS18B20 can be used for temperature measurement in cable trenches, blast furnace water circulation, Kessel, machine rooms, agricultural greenhouses, clean rooms, ammunition depots, and other non-extreme temperature occasions. Wear-resistant and collision-resistant, small in size, einfach zu bedienen, and with various packaging forms, it is suitable for digital temperature measurement and control of various narrow space equipment;
Home Automation: Monitoring room temperatures for smart thermostats;
Environmental Monitoring: Tracking temperature changes in outdoor environments;
Industrial Process Control: Monitoring temperatures within industrial machinery and processes;
Data Logging: Recording temperature data over time with a microcontroller;
Scientific Research: Measuring temperatures in experiments;
This product is suitable for temperature measurement and control in freezers, granaries, storage tanks, telecommunications rooms, power rooms, cable ducts, usw.
Lager, Zylinder, Textilmaschinen, Klimaanlagen, and other narrow space industrial equipment temperature measurement and control.
Automotive air conditioners, Kühlschränke, Gefrierschränke, and medium and low temperature drying ovens, usw.
Heat metering of heating/cooling pipelines, household heat metering of central air conditioners, and temperature measurement and control in the industrial field.
Food Safety: Monitoring food storage temperatures
Wie es funktioniert:
1. Connection:
The sensor is connected to a microcontroller’s digital pin with a pull-up resistor on the data line.
2. Communication:
The microcontroller sends commands to the sensor through the 1-Wire protocol to initiate temperature measurement.
3. Temperature Conversion:
The sensor internally converts the temperature into a digital value.
4. Datenbelesen:
Der Mikrocontroller liest den digitalen Wert des Sensors, das dann in einen Temperaturwert in Celsius umgewandelt wird.
Kontaktiere uns
Warten auf Ihre E-Mail, Wir werden Ihnen innerhalb von 24 Stunden antworten 12 Stunden mit wertvollen Informationen, die Sie brauchten.