Som en komponent som kan ändra motståndsvärdet efter temperaturförändringar, termistorer har ett brett användningsområde (såsom temperaturmätning, temperaturkontroll, temperaturkompensation, temperaturlarm, termiskt batteriskydd). Låt mig dela med dig flera tillämpningsfall av termistorer:
Anslutningsmetoden för NTC-termistortemperaturgivaren måste bestämmas enligt det faktiska tillämpningsscenariot och mätkraven. Under ledningsprocessen, var noga med att vara uppmärksam på stiftets polaritet, val av tråd, temperaturintervall, filtrering och frikoppling, jordningsbehandling, och verifiering och kalibrering för att säkerställa mätningens noggrannhet och tillförlitlighet.
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?
A: High sensitivity eliminates any lead resistance. It also simplifies the supporting electronics. A 10,000 ohm thermistor changes resistance by 4.4% eller 440 ohms for a 1°C change in temperature. A 100 ohm platinum sensor changes resistance by 1/3 ohm for a 1°C change in temperature.
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, som är, 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.
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