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RadPhi
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If two cars are traveling either in parallel or in close succession to one another how can a laser determine which car it is gauging the speed of?
Imported from America, the LTI 20.20. is used in nearly 3,500 mobile speed units hidden in police vans or cars and mounted on motorbikes.
In other tests, we found the equipment was measuring the speed of overtaking cars instead of the one being targeted.
Dr Clark says that the gun is defective because its wide beam can easily pick up the wrong vehicle. Furthermore, if the device is not held firmly on the target - and this is a difficult task - it can produce an erroneous speed result by "slippage".
Speed laser guns work by emitting a narrow beam of light that is bounced off a moving vehicle and then detected by the gun. The time it takes for the light to bounce back to the gun is used to calculate the speed of the vehicle.
Speed laser guns differentiate between two cars by using a process called "target selection." This involves the gun's computer system analyzing multiple readings from different targets and selecting the strongest and most accurate reading to determine the speed of the vehicle.
Yes, speed laser guns can be affected by weather and environmental factors such as rain, fog, and extreme temperatures. These factors can affect the accuracy of the readings and may require the operator to adjust the gun's settings or wait for better conditions before obtaining a reading.
Yes, speed laser guns are highly accurate when used correctly. They have an accuracy rate of +/- 1 mph and are regularly tested and calibrated to ensure precision. However, factors such as operator error or environmental conditions can affect the accuracy of the readings.
Yes, speed laser guns have certain limitations that can affect their accuracy. These include the angle of the gun to the target, the speed of the target vehicle, and the distance between the gun and the target. It is important for the operator to be trained and follow proper procedures to minimize these limitations.