Indicate whether each of the following statements is Right o

Indicate whether each of the following statements is Right or Wrong? Resolution is limited by the noise in digital instruments. () Precision is synonym for \"reproducibility\". () A cosine angle of 90* has 100% error, speed measures zero. () Cosine effect, the greater the angle the greater the speed error and the lower the measured speed. () When the axis of measurement is offset from the axis of interest, Abbe errors will occur ()

Solution

1.right

2.right (the repeatability, or reproducibility of the measurement)

3.right(Police microwave and laser radars measure the relative speed a vehicle is approaching, or receding, the radar. If a vehicle is traveling directly at the radar the relative speed is actual speed. If the vehicle is not traveling directly at the radar the relative speed is slightly lower than actual speed. The phenomenon is called the Cosine Effect because the measured speed is directly related to the cosine of the angle between the radar and vehicle direction of travel or speed vector. The greater the angle the greater the speed error and the lower the measured speed. A cosine angle of 90° has 100% error, speed measures zero.)

4.right (Cosine Effect because the measured speed is directly related to the cosine of the angle between the radar and vehicle direction of travel or speed vector. The greater the angle the greater the speed error and the lower the measured speed)

5.right (abbe error results from an offset between the plane of the measurement axis and the axis of motion of the part under test )