Denne artikkelen forklarer i detalj bruken av tilpasset DS18B20 digital temperatursensor i å bygge et digitalt termometer. Inkludert arbeidsprinsipp, Maskinvareforbindelse, Programmering av programvare og simulering. Gi komplette programmer simuleringsdiagram, C kildekode og resultatanalyse for å hjelpe leserne dypt å forstå og praktisere bruken av DS18B20.
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?
EN: High sensitivity eliminates any lead resistance. It also simplifies the supporting electronics. EN 10,000 ohm thermistor changes resistance by 4.4% or 440 ohms for a 1°C change in temperature. EN 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 (the higher the temperature, the greater the resistance), but the resistance change is very small, about 0.385 Ω / degree;
When many customers buy mechanical bimetal disc thermostat & small thermal protection switch, they will find that even if the parameters of bimetallic temperature control switch are the same, the price of different manufacturers is different. What causes the price of bimetal thermostat switch? Today, the editor will give you a detailed explanation of some factors that affect the price of temperature control switch.
Our Skilled & Professional Sales Force Will Help You Source The Right thermostat thermal switch You Need. Find Uxcell Ksd9700, Ksd301, Ksd302, 17Am, 36T21, 36T22, 6ap, JUC-31F, 5AP, 8AM, 3MP, 2MP, S01, S06, ST11, BW Series Thermal Protector B2B Factory Direct Models and Features. Power options range from low current miniature temperature switches to HI AMP high temperature disc limit thermostats.
China custom bimetallic thermal cutoff protector switch has surface mount and PC plug-in installation. Thermal Cutoffs switch (bimetallic thermostat) are devices designed to keep components safe in situations when an excessive temperature occurs. List of Select Surface Mount Thermal Switches and Thermal Protectors Product Specs, Datasheets, Manufacturers & Suppliers.
EN “3MP / 6AP/ 8AM /2AM / 3MP / 17AM+PTC over current & temp bimetallic protector” is a type of electrical safety device that combines a standard ” 3MP ” bimetallic thermal overload protector with a Positive Temperature Coefficient (PTC) termistor, allowing it to both react to excessive current (overcurrent) and high temperatures, automatically cutting power and resetting once the issue is resolved; essentially acting as a resettable fuse with added temperature protection.
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