Engineering Metrology and Precision Measuring Devices

Flashcards covering key concepts from the Metrology and Precision Measuring Devices lecture.

Metrology

The science of measurement that ensures accuracy, reliability, and standardization in engineering processes.

Precision Measuring Devices

Specialized instruments used to obtain highly accurate measurements of physical dimensions and parameters critical to manufacturing and quality control.

Outside Micrometer

A device used to measure the outside dimensions of objects with high accuracy.

Inside Micrometer

A type of micrometer accessorized with extensions to measure internal dimensions.

Depth Micrometer

A micrometer used to measure the depths of grooves or recesses accurately.

Thread Micrometer

A precision tool designed to measure the pitch diameter of screw threads accurately.

Vernier Scale Micrometer

A micrometer that features a Vernier scale to read smaller measurements than standard micrometers.

Vernier Calipers

A versatile precision instrument used to measure both inside and outside dimensions quickly.

Vernier Height Gauge

An instrument used to determine vertical distances accurately.

Vernier Protractor

A tool used to measure and set angles with high accuracy.

Combination Set

A measuring device consisting of a steel scale and multiple interchangeable heads for different measurements.

Dial Test Indicator (DTI)

An instrument that measures variations in a surface, displaying readings on a circular dial or LCD.

Clinometer

A precision instrument used to measure angles of slope, elevation, or depression.

Calibration

The process of verifying the accuracy of a measuring instrument by comparing it against known standards.

Calibration Standards

Traceable national or international standards used to ensure measurement accuracy.

Go No-Go Gauge

A tool that determines whether a component meets specific dimensional tolerances.

Optical Flats

Transparent disks used to inspect the flatness and surface accuracy of components.

Slip Gauges

Precision measurement tools made of gauge blocks used for accurate dimensional verification.

Feeler Gauge

Leaves of tempered steel gauged to measure small clearances.

Divider

A tool used to transfer distances and divide lines into equal increments.

Calipers

Tools used to measure the dimensions of objects; available in inside and outside types.