How to measure the temperature sensor is good or bad

How to measure the temperature sensor is good or bad?

has the following four methods;

1, if you have any table, the sensor can be received on the table, put the sensors in mixed species, watch the display is not zero degrees Celsius, reading whether change.

2, if there is no table, considering sensors measuring temperature range, can see the platinum resistance three-wire system of temperature measurement.

3, put the sensors in ice water, the resistance is measured with a multimeter, platinum resistance so several typical values, PT100, PT1000, PT200, read the value of 100 ohms in mixed species, 1000 ohms to 200 ohms.

4, hand sensor, reading change, change.

1, is introduced: the temperature sensor, is to use the material law of various physical properties vary with temperature, the temperature sensor is converted to electricity.

2, presentation: these showed regular changes the physical properties of the main functioning.

3, type: the temperature sensor is the core part of the temperature measuring instrument, wide variety. According to measuring methods could be divided into two types: contact and non-contact, according to the sensor material and electronic component features divided into two categories, thermal resistance and thermocouple.

4, how it works: metal after the environmental temperature change will produce a corresponding extension, so the sensor can be in a different way to signal the response.