Temperature acquisition of 4-wire PT100 temperature sensor
24 Dec
Temperature sensor technology

Temperature Acquisition of 2, 3, and 4-Wire PT100 Temperature Sensors

A PT100 sensor acquires temperature by measuring the change in its electrical resistance, which directly correlates to the temperature it is exposed to; as the temperature increases, the resistance of the platinum element within the sensor also increases, allowing for a precise calculation of the temperature based on this resistance change; essentially, the “100” in PT100 signifies that the sensor has a resistance of 100 ohms at 0°C, and this value changes predictably with temperature fluctuations.

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Temperature sensor probe T100 high temperature -50～260 cable
19 Dec
Temperature sensor technology

Resistors and Circuits of PT100 and PT1000 Metal Thermal Resistor Sensor Probes

The temperature measurement range of the commonly used platinum resistance Pt100 sensor probes is -200～850℃, and the temperature measurement ranges of Pt500, Pt1000 sensor probes, etc. are successively reduced. Pt1000, temperature measurement range is -200～420℃. According to the IEC751 international standard, the temperature characteristics of the platinum resistor Pt1000 meet the following requirements:

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DS18B20 temperature sensor 1-wire waterproof cable + adapter board set
18 Dec
Temperature sensor technology

Custom DS18B20 Sensor Probe & 1-Wire Cable Assembly

The DS18B20 sensor communicates using the “1-Wire” protocol, which means it uses a single data line for all communication with a microcontroller, allowing multiple sensors to be connected on the same line and identified by their unique 64-bit serial code; this single data line is pulled high with a resistor and the sensor transmits data by pulling the line low during specific time slots to send bits of information.

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DS18B20 Temperature Sensor Digital Thermometer Probe + Terminal Adapter Module with Wire Set
18 Dec
Temperature sensor technology

Making a Digital Thermometer with DS18B20 Digital Temperature Sensor

This article explains in detail the application of custom DS18B20 digital temperature sensor in building a digital thermometer. Including working principle, hardware connection, software programming and simulation implementation. Provide complete protues simulation diagram, C source code and result analysis to help readers deeply understand and practice the use of DS18B20.

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Stability of NTC sensor probe
17 Dec
Thermistor technology

Thermistor Temperature Sensor Probe Knowledge Answers

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% or 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.

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NTC temperature sensors are used in electrical appliance temperature acquisition
14 Oct
Temperature sensor technology

Temperature and resistance of NTC temperature sensor applications

NTC temperature sensor is a thermistor sensor (measuring temperature range: -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; conversely, as the temperature decreases, the resistance value will increase. This characteristic makes NTC temperature sensor very suitable for measuring temperature.

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