•Sensitivity: The thermistor can change with very small temperature changes.
Accuracy: Thermistors provide high absolute accuracy and error.
Cost: For the high performance of the thermistor, its cost performance is very high.
• Robustness: The construction of the thermistor makes it extremely rugged.
• Flexibility: Thermistors can be configured in a variety of physical forms, including very small packages.
• Sealing: The glass package provides a sealed package to prevent sensor failure due to moisture.
Surface Mount: Available in a variety of sizes and resistor tolerances.
• In the disadvantages of thermistors, usually only automatic heating is a design consideration. Appropriate measures must be taken to limit the induced current to a sufficiently low value to reduce the automatic heating error to an acceptable value.
• Non-linear problems can be solved by software or circuits, and the problem of moisture that can cause malfunction can be solved by glass packaging.
· All sensors have specific strengths and weaknesses. The key to ensuring a successful project is to match the sensor functionality to the application.
• Perfect temperature sensor: no effect on the measured medium.
· Very precise
· Respond to instant (in most cases)
·The output is easy to adjust
• Regardless of the type of sensor, all temperature sensors should consider the above factors.
• Regardless of what is measured, it is important to ensure that the measuring device itself does not affect the measured media. This is especially important when making contact temperature measurements. Choosing the right PT100 RTD temperature sensor size and wire configuration are important design considerations to reduce “rod effects” and other measurement errors.
• Once the impact on the measured medium is minimized, how to accurately measure the medium becomes critical. Accuracy involves the basic characteristics of the sensor, measurement accuracy, and so on. If the design problem about the “rod effect” is not solved, then the accurate sensor will not help.
• The response time is affected by the quality of the sensor components and is also affected by the wires. The smaller the sensor, the faster the response.