How does the car reflect the temperature of the car engine coolant? It is through the water temperature sensor, which is also called the water temperature sensor plug. So where is the specific location of the car water temperature sensor? The water temperature sensor enables the control unit to identify engine overheating or an unusual rise in temperature. How much does a car water temperature sensor cost?
DS18B20 je pogosto uporabljen digitalni temperaturni senzor. It outputs digital signals, has the characteristics of small size, nizki stroški strojne opreme, Močna sposobnost proti interferenci, visoka natančnost, and is widely used.
DS18B20 is a digital temperature sensor that uses a single bus timing to communicate with the host. Only 1 Wire is needed to complete the temperature data reading;
DS18B20 has a built-in 64-bit product serial number for easy identification. Multiple DS18B20 sensors can be connected to 1 Žica, and through 64-bit identity authentication, the temperature information collected from different sensors can be read separately.
Today I will show you how to use the DS18B20 digital temperature sensor with an Arduino so you can measure the temperature of air, liquids such as water, and the ground.
To connect the DS18B20 digital temperature sensor to Arduino, you need to do the following steps:
Hardware connection:
Connect the VCC pin of DS18B20 to the 3.3V power pin of Arduino.
Connect the GND pin of DS18B20 to the ground pin of Arduino.
Connect the data pin of DS18B20 to the GPIO pin of Arduino (na primer, GPIO4).
Connect a 4.7kΩ pull-up resistor between the data pin and the 3.3V power pin.
V različnih panogah se uporabljajo visoka natančnost in natančnost NTC Termistors Senzors, od medicinskih do industrijskih aplikacij. Medicinska industrija se zanaša na NTC v različnih aplikacijah, vključno s katetri, Dializna oprema, in spremljanje pacientov. Ta del medicinskega senzorja je 1355 Ohmi pri 37 ° C z beta 25/85 od 3976.
Kovinski toplotni upori, kot je nikelj, Baker in platinasti upori imajo pozitivno povezavo s spremembo odpornosti s temperaturo. Platina ima najstabilnejše fizikalne in kemijske lastnosti in se najpogosteje uporablja. Obseg temperature najpogosteje uporabljenega platinskega upora PT100 je -200 ～ 850 ℃. Poleg tega, Območje merjenja temperature PT500, Pt1000, itd. se zaporedno zmanjšujejo. Pt1000, Območje merjenja temperature -200 ～ 420 ℃. V skladu z mednarodnim standardom IEC751, temperaturne značilnosti platinastega upora Pt1000 izpolnjujejo naslednje zahteve:
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