What term describes the difference between the minimum and maximum readings taken by an indicator?

What term describes the difference between the minimum and maximum readings taken by an indicator?

• A. Total Indicator Reading
• B. Minimum Reading
• C. Indicator Span
• D. Peak-to-Peak Reading

Answer: (A)

Total Indicator Reading is the difference between the highest and lowest readings the indicator shows during a measurement. It captures the total amount of variation or runout the indicator detects, which is why it’s the best term for describing how far the measured feature moves from its extreme positions. For example, if the indicator reads a maximum of 0.005 inches and a minimum of 0.000 inches, the total indicator reading is 0.005 inches. This isn’t just the lowest or highest value alone, but the full span across the measurement cycle. While peak-to-peak is a similar idea used in waveform contexts, in this mechanical metrology setting the standard term is Total Indicator Reading.

Total Indicator Reading is the difference between the highest and lowest readings the indicator shows during a measurement. It captures the total amount of variation or runout the indicator detects, which is why it’s the best term for describing how far the measured feature moves from its extreme positions.

For example, if the indicator reads a maximum of 0.005 inches and a minimum of 0.000 inches, the total indicator reading is 0.005 inches. This isn’t just the lowest or highest value alone, but the full span across the measurement cycle. While peak-to-peak is a similar idea used in waveform contexts, in this mechanical metrology setting the standard term is Total Indicator Reading.