Instrument test questions
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What’s wrong with option B for question 23?
The resistance value of a resistive wire is influenced by factors such as the material and thickness of the wire; the thicker the wire, the higher its resistance, which in turn affects temperature measurement
You’ve never taken apart a thermal resistor, have you? The resistance wire is extremely thin – thinner than hair. As for the issue of shock resistance, it’s not about how thick the wire is; instead, other methods are used. A metal sheet is used to protect it, and inside that metal sheet there’s an insulating plastic sheet with teeth, around which the resistance wire is wrapped. You’ll understand this once you take it apart
You’ve never taken apart a thermal resistor, have you? The resistance wire is extremely thin – thinner than hair. As for the issue of shock resistance, it’s not about how thick the wire is; instead, other methods are used. A metal sheet is used to protect it, and inside that metal sheet there’s an insulating plastic sheet with teeth, around which the resistance wire is wrapped. You’ll understand this once you take it apart
“The thicker the resistance wire, the greater its resistance value... It was said the wrong way.
Ah, it’s the opposite – the thicker the resistor wire, the lower its resistance value~
Thermistors are made of thin platinum wires, not thicker wires.