Speed measurement range
The speed measurement range of a portable speedometer can range from a few kilometers to tens of kilometers, and the speed measurement range varies depending on the model of the instrument. Specifically, if it is used to measure the speed of a vehicle, the speed measurement range is usually between 0 and 360 kilometers per hour; if it is used to measure the speed of an object, the speed measurement range can range from 0.1 meters per second to hundreds of meters per second, and the accuracy and sensitivity of different devices are also different.
Precautions
When using a portable speedometer for measurement, you need to pay attention to the following matters:
1. Operating environment
The speedometer should be used in a dry environment with a suitable temperature to avoid the impact of adverse weather such as direct sunlight and rain and snow on the test.
2. Measurement object
Portable speedometers are usually used to measure non-contact vehicle speeds, object speeds, etc. It is necessary to keep the measurement range free of other objects that block or interfere, and the measurement object should be a relatively stable target to avoid excessive errors.
3. Measurement method
When measuring, you should choose a suitable measurement method. Commonly used methods include single-shot ray measurement, dual-flash source measurement, and multiple-shot ray measurement. Choose a suitable method according to different measurement needs.
4. Battery life
Portable speedometers are generally powered by batteries, so you need to pay attention to the battery life and replace or charge the battery in time to avoid affecting the accuracy of the test.
Summary
Portable speedometers are the product of modern technology. They have the advantages of wide measurement range, high accuracy, and easy portability. They have been widely used in vehicle speed and object speed measurement. When using a speedometer, you need to choose the appropriate equipment model and measurement method, and pay attention to the influence of factors such as the environment and the object to obtain more accurate test data.
Application areas:
Traffic speed measurement, road factory area, highway, field training, sports competition, military and police technology, etc.