¿Qué es un micrómetro y cómo se utiliza?
What is a Micrometer and How to Use It
In this section, Marcos Cossoy explains the components of a micrometer and its functioning, emphasizing the importance of calibration before measurements.
Components of a Micrometer
- The micrometer consists of the spindle, thimble, ratchet, frame, anvil, and the distance between the anvil and spindle known as measuring faces.
Functioning of a Micrometer
- The micrometer operates similarly to a screw and nut system with the spindle having a thread pitch of 0.5 mm and the frame having a matching nut.
- Each full rotation of the thimble corresponds to an advancement of 0.50 mm due to its division into 50 parts where each part represents one-hundredth of a millimeter.
Measurement Process
- Before taking measurements, it is crucial to ensure calibration by aligning the zero mark on the thimble with the reference line.
- To measure an object accurately, place it between the spindle and anvil, close using the ratchet without excessive force, then lock using the brake after measurement for stability.
- The upper scale indicates millimeters while the lower scale shows fifty hundredths; observing where these scales align provides precise measurements in millimeters and hundredths.