What is a thermistor How does a digital thermometer work?

A digital thermistor thermometer provides an excitation voltage or current to the thermistor. The excitation is converted to a voltage signal by the thermistor and the thermometer then converts the measured voltage to temperature.

How can NTC thermistor be used to measure temperature?

Using a Thermistor to Measure Temperature. The simplest way of doing this is to use the thermistor as part of a potential divider circuit as shown. A constant supply voltage is applied across the resistor and thermistor series circuit with the output voltage measured from across the thermistor.

What does NTC means when working with a thermistor?

Negative Temperature Coefficient
When we are discussing NTCs we are referring to a type of temperature sensor; an NTC thermistor. In this instance, NTC defines as “Negative Temperature Coefficient”. Thermistors measure temperature by measuring the resistance of the electrical energy passing through the thermistor which is relative to temperature.

What does the L mean on my digital thermometer?

The “L” means that the thermometer is at its lowest point and ready to take your temperature. It does not mean the battery is low. There is a separate low battery icon that will display all by itself when the battery is low.

How do you calibrate the NTC thermistor?

Calibrating NTC thermistors consists of applying known temperatures and then adjusting circuit and software parameters based on measured responses. When it comes down to it, applying known temperatures is considered a two-step process. The first step in the process is to apply calibrated sensors to the system.

What is a NTC temperature sensor?

NTC is an acronym for Negative Temperature Coefficient. An NTC thermistor is a temperature sensor that uses the resistance properties of ceramic/metal composites to measure the temperature.

What is the temperature range of a thermistor?

The typical operating temperature range of a thermistor is −55 °C to +150 °C, though some glass-body thermistors have a maximal operating temperature of +300 °C.

What is the purpose of NTC?

The National Telecommunications Commission (NTC) is primarily responsible for the regulation and quasi- judicial functions relative to the supervision, adjudication, and control of the country’s radio communications, telecommunications, and broadcast, including cable television (CATV) facilities and services.

What is an NTC thermometer?

NTC stands for “Negative Temperature Coefficient”. NTC thermistors are resistors with a negative temperature coefficient, which means that the resistance decreases with increasing temperature. They are primarily used as resistive temperature sensors and current-limiting devices.