Thermistors and Temperature Measurements

A rod-shaped tube, often a length of fine coiled wire wrapped around a ceramic or glass core.

A pure material, often platinum, whose resistance at various temperatures has been documented.

It is relatively immune to electrical noise.

<p>It represents the resistance of 100Ω at 0°C.</p> Signup and view all the answers

<p>To house the RTD element and protect it from damage.</p> Signup and view all the answers

<p>A change in resistance as the temperature changes.</p> Signup and view all the answers

<p>A thermistor is a type of semiconductor, and its resistance decreases as temperature increases.</p> Signup and view all the answers

<p>NTC (negative temperature coefficient) thermistors have a decreasing resistance with increasing temperature, while PTC (positive temperature coefficient) thermistors have an increasing resistance with increasing temperature.</p> Signup and view all the answers

<p>The resistance of an NTC thermistor increases in a non-linear fashion with decreasing temperature.</p> Signup and view all the answers

<p>Low-temperature applications (-55 to approx. 70°C) typically use lower resistance thermistors.</p> Signup and view all the answers

<p>PTC thermistors are often used for circuit protection.</p> Signup and view all the answers

<p>A thermistor is often referred to as a 'thermally sensitive resistor'.</p> Signup and view all the answers

<p>Thin-film elements are more resistant to damage from shock or vibration.</p> Signup and view all the answers

<p>They can accurately measure extremely high temperatures.</p> Signup and view all the answers

<p>The accuracy classes are B, A, AA, and they can measure temperatures from -196 to 600 °C.</p> Signup and view all the answers

<p>They require skilled labor and advanced assembly facilities.</p> Signup and view all the answers

<p>Possible damage may occur, which affects the accuracy of the reading.</p> Signup and view all the answers

<p>To amplify the output for proper reading.</p> Signup and view all the answers