Come componente che può modificare il valore di resistenza in base alle variazioni di temperatura, i termistori hanno una vasta gamma di applicazioni (come la misurazione della temperatura, controllo della temperatura, compensazione della temperatura, allarme temperatura, protezione termica della batteria). Vorrei condividere con voi diversi casi di applicazione dei termistori:
Il metodo di connessione del sensore di temperatura del termistore NTC deve essere determinato in base allo scenario applicativo effettivo e ai requisiti di misurazione. Durante il processo di cablaggio, assicurati di prestare attenzione alla polarità dei pin, selezione del filo, intervallo di temperatura, filtraggio e disaccoppiamento, trattamento di messa a terra, e verifica e calibrazione per garantire l'accuratezza e l'affidabilità della misurazione.
What are thermistors NTC and PTC?
NTC and PTC are both thermistors, which are special resistors that can change resistance with temperature. They can also be said to be a kind of sensor.
Q: Can you explain sensitivity resolution in more detail? Why are higher values better?
UN: High sensitivity eliminates any lead resistance. It also simplifies the supporting electronics. UN 10,000 ohm thermistor changes resistance by 4.4% O 440 ohms for a 1°C change in temperature. UN 100 ohm platinum sensor changes resistance by 1/3 ohm for a 1°C change in temperature.
Comparison between PT100 temperature sensor probe and DS18B20 module
1) Basic principle of signal acquisition
① The resistance of PT100 changes proportionally with the temperature (Maggiore è la temperatura, the greater the resistance), but the resistance change is very small, about 0.385 OH / degree;
NTC temperature sensor is a thermistor sensor (intervallo di temperatura di misurazione: -30°C to +200°C (-22°F to +392°F) waterproof probe). Its resistance value changes with temperature. NTC (Coefficiente di temperatura negativo) means that its resistance value is negatively correlated with temperature, questo è, as the temperature rises, the resistance value will decrease; al contrario, 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, termocoppia, resistenza termica, DS18B20, ecc. cavo, 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
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