Contents
Which temperature sensor is more suitable for measuring body temperature?
Infrared (IR) temperature sensors enable accurate non-contact temperature measurement in medical applications. The most common applications for this type of temperature sensor is measuring ear temperature, forehead temperature, or skin temperature.
How does temperature sensor measure temperature?
They measure temperature by measuring the change in resistance of the electric current. Thermistors are available as either NTC or PTC and are often low cost. RTDs or Resistance Temperature Detectors work in a similar way to Thermistors and measure ohmic resistance to measure temperature.
How to choose the right temperature sensor for your application?
When you are able to provide the right answers to these application questions /selection criteria required, you will be in good stead to choose the right sensor for your application. The advice given below are only for guidance. Always consult the vendor for a specific temperature sensor application. What process are we measuring the temperature?
What is the tolerance of a Grade B temperature sensor?
To meet the requirements of the DIN standard, an RTD must have a resistance of 100 Ohms – 0.12 % (or 0.12 Ohms) at 32°F (0°C) to be considered a Grade B sensor (a Grade A sensor is 100 Ohms – 0.06%). The tolerance of – 0.12 Ohms applies only to the resistance at 32°F and cannot be applied to any other temperature.
How are temperature measurements used in IT equipment?
For accurate temperature measurements, it is necessary to have a good understanding of typical temperature profiles along the front of the IT equipment racks. The goal is to capture these temperature profiles with the measurements, often with a very limited number of sensors.
What kind of temperature sensor is needed for ceramic cement?
Ceramic cements can be exposed to temperatures of 2000°F or more, but require sealants to keep moisture out of the cement and the vibration dampening/ heat transfer material beneath. The material with the lowest temperature capability in a platinum RTD is usually the wire and insulation used to connect the sensing element to the instrumentation.