Den här artikeln förklarar i detalj tillämpningen av en anpassad DS18B20 digital temperatursensor för att bygga en digital termometer. Inklusive arbetsprincip, hårdvaruanslutning, mjukvaruprogrammering och simuleringsimplementering. Tillhandahåll kompletta protues simuleringsdiagram, C källkod och resultatanalys för att hjälpa läsare att på djupet förstå och öva på användningen av DS18B20.
Jämförelse mellan PT100 temperaturgivare sond och DS18B20 modul
1) Grundprincipen för signalinsamling
① Motståndet hos PT100 ändras proportionellt med temperaturen (ju högre temperatur, desto större motstånd), men motståndsförändringen är mycket liten, om 0.385 Åh / grad;
NTC temperature sensor is a thermistor sensor (mäta temperaturområdet: -30°C to +200°C (-22°F to +392°F) waterproof probe). Its resistance value changes with temperature. NTC (Negative Temperature Coefficient) means that its resistance value is negatively correlated with temperature, that is, as the temperature rises, the resistance value will decrease; omvänt, as the temperature decreases, the resistance value will increase. This characteristic makes NTC temperature sensor very suitable for measuring temperature.
In modern sensing technology applications, (NTC, PTC, PT100, termoelement, thermal resistor, DS18B20, etc. kabel, probe kit) temperature sensors are key measuring tools. They are widely used in industrial automation, agricultural monitoring, automobile manufacturing and other fields. In order to ensure that the temperature sensor can work stably and reliably in a humid or wet environment, waterproof and moisture-proof technology
The core technologies of sensor probes and temperature measurement cable kits involve temperature sensing, signal transmission and data processing. Temperature acquisition expert YAXUN uses high-precision Shibaura NTC thermistors for sensor temperature sensing harnesses, including sensing materials, signal processing technology, integrated design and future development trends.
NTC Thermistor Temp Sensors. -13℉-257℉ Quick Response High Sensitivity Temperature Sensor Probe For Home Appliances 5K B3470 5K 3470K 5K B3950 5K 3950K 10K B3435 10K 3435K 10K B3950 10K 3950K 15K B3950 15K 3950K 20K B3950 20K 3950K 50K B3950 50K 3950K 100K B3950 100K 3950K
25952893 for GM Chevrolet GMC temperature sensor 15-51264 1551264;
27722-AL500 for Nissan outdoor temperature sensor ambient temperature 27722-3VA0A;
27723-4BU0A for Nissan Qashqai temperature sensor 277234BU0A;
27675-1KM1A for Nissan air conditioning temperature sensor thermostat 27675-1FC1A 92200-1FA;
1347010 20927970 for Volvo truck/bus/engineering machinery air temperature sensor;
A0009058306 for Mercedes-Benz evaporator temperature sensor PUM42509 0009058306;
4B0 820 535 for Audi A6 outdoor temperature sensor 4B0820535;
A1718300272 for Mercedes-Benz evaporator temperature sensor 1718300272 982096K;
97614-3X000 for Kia air conditioning temperature sensor thermostat AX415 976143X000;
65818360625 for BMW outdoor temperature sensor 65806905050 65810149842;
9123456 for Saab outdoor temperature sensor 1211484 32732 9123456 17SKV704;
71741017 for Peugeot Citroen Renault outdoor temperature sensor 6445F9 6445JS;
8862547021 for Toyota car temperature sensor 88625-06040 077500-4682;
Applicable to Mitsubishi original speed sensor G4T07171 MR534576 MR5345;
Installed in the charging pile/charging gun of new energy vehicles, used for charging temperature control of new energy vehicles
Fast response speed
Various installation structures available
Strong moisture resistance and high stability
This sealed digital temperature probe lets you precisely measure temperatures in wet environments with a simple 1-Wire interface. Waterproof DS18B20 Digital temperature sensor + Resistor · Usable temperature range: -55 to 125°C (-67°F to +257°F) · 9 till 12 bit selectable resolution.
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