The outdoor ultrasonic level meter is easily affected by temperature changes under sunlight, which in turn leads to a decrease in measurement accuracy. In order to reduce the impact of sunlight on the measurement accuracy, the following measures can be taken:

I. Installation of sunshade

Role: The sunshade can block the direct sunlight, reduce the ultrasonic level meter probe by the temperature change, thereby reducing the impact of temperature on the speed of sound, and improve the accuracy of the measurement.

Selection: When choosing a suitable sunshade shield, you need to consider its shading effect, durability and the impact on ultrasonic signal transmission.

Installation: Ensure that the sunshade is firmly installed and does not affect the normal operation of the ultrasonic level meter.

II. Adoption of temperature compensation technology

Principle: Since temperature is the main factor affecting the speed of sound, ultrasonic level meter usually embeds a temperature sensor inside the probe to measure the ambient temperature, and corrects the speed of sound through the temperature compensation algorithm, so as to improve the measurement accuracy.

Realization: The ultrasonic level meter will automatically carry out temperature compensation internally, without the need for manual operation by the user. However, the user should ensure the accuracy and stability of the temperature sensor and the effectiveness of the temperature compensation algorithm.

III. Optimizing the installation location

Avoid direct sunlight: try to avoid installing the ultrasonic level gauge in direct sunlight to reduce the magnitude of temperature change.

Consider the environment: before installation, the surrounding environment should be examined, and the location with relatively small temperature change and more sheltered objects should be selected for installation.

IV. Regular maintenance and calibration

Maintenance: Regularly clean and maintain the ultrasonic level meter to ensure that its surface is free of dust and debris, so as not to affect the transmission and reception of signals.

Calibration: Regularly calibrate the ultrasonic level meter to ensure its measurement accuracy and stability. During calibration, attention should be paid to the influence of ambient temperature and humidity, and try to carry out under standard conditions.

In summary, the impact of sunlight on the measurement accuracy of outdoor ultrasonic level gauge can be effectively reduced by installing a sunshade shield, adopting temperature compensation technology, optimizing the installation location, regular maintenance and calibration, and selecting high-quality products.