Factors Affecting Measurement Accuracy of Temperature and Humidity Sensors

Temperature and humidity sensors have been used in every corner of life and production due to their temperature and humidity measurement capabilities. For measurement, temperature and humidity sensors are certainly a reliable small expert. However, while the temperature and humidity sensors help us to measure data in daily life, its accuracy is equally important to us. In daily use, we should try to avoid some factors that can affect the measurement accuracy of the temperature and humidity sensors. Below we will take you step by step understanding.

1. The sensor probe's contact with the measured object. If the measured object is the temperature and humidity of grain in the granary, then the probe of the sensor is inserted into the center of the grain pile, so as to ensure that the measured data is the temperature and humidity, as long as the temperature and humidity values ​​of the area are low, then the surrounding The temperature and humidity must be within the specified range.

2. The response time measured by the sensor. When the temperature and humidity changes greatly, the faster the response time, the smaller the difference between the measured temperature and humidity and the actual temperature and humidity values.

3, the sensor's own thermal impedance. When measuring the temperature and humidity values ​​in the atmospheric environment, the temperature and humidity values ​​will change as the sensor thermal impedance changes; when measuring the melt, the melt may attach to the sensor and cause the impedance to change, resulting in inaccurate measurements.

4, the use of the environment. Different temperature and humidity sensors are suitable for different environments. If the environment is dusty, it is recommended to use a sensor with good sealing performance so that the components will not be accurately measured due to the ingress of dust.

5. Ambient temperature and humidity. The use of the sensor has a specific range of measurement. If it exceeds this range, it may cause damage to make the measurement not possible.

6, thermocouple heat radiation. When thermocouples are used to measure high temperature objects, the heat radiation from high temperature objects can make thermocouple measurements inaccurate.

In the use of temperature and humidity, there will be some uncertain factors affecting the accuracy of its measurement, which requires us to avoid these factors that can affect the accuracy of temperature and humidity in the use of the temperature and humidity sensor to ensure that the error in the allowable There is an accurate measurement in the range.