Metrology Articles
Three Point Bore Gauge
A 3 point bore gauge is a precision measuring instrument used to measure the internal diameter or bore of a hole or cylinder with high accuracy. It works by using three contact points that touch the inside surface of the bore. These contact points are arranged in a triangular pattern to ensure a stable measurement and to minimize any effects from surface irregularities or imperfections.
1. Measuring Head: The part of the gauge that contains the three contact points. These are typically made of hardened steel or ceramic for durability and wear resistance.
2. Measuring Rod or Stem: This is the part that connects the measuring head to the handle or mechanism for adjusting and locking the measurement.
3. Dial Indicator or Digital Readout: Many three point bore gauges come equipped with a dial or digital indicator .
Three and Two Point Bore Gauge
A Three-Point and Two-Point Bore Gauge are precision instruments used for measuring the internal diameter (bore) of holes or cylindrical features. They provide highly accurate measurements and are often used in industries like automotive, aerospace, and manufacturing to ensure parts meet specified tolerances.
1. Three Point Bore Gauge
Design: Has three contact points spaced evenly
Use: Ideal for measuring internal diameters with high precision and self-centering capability.
2. Two-Point Bore Gauge
Design:Uses two contact points, typically spring-loaded, and a dial indicator.
Use: Requires a bit more skill to center and rock the gauge to find the minimum reading (true diameter).
Deep Bore Gauge
A deep bore gauge is a specialized tool used to measure the internal diameter or size of a hole or bore, especially when the hole is deep or hard to access with traditional measuring instruments. These gauges are designed to provide accurate measurements in deep holes where standard calipers or micrometers may not reach.
Key Features:
1. Long Measuring Rod: The gauge typically includes an extended rod that can reach deep into the bore to take measurements at different points.
2. Dial Indicator or Digital Readout: These gauges often use a dial indicator or a digital readout system to show the measurement, providing high precision.
3. Precision Measurement: Deep bore gauges are designed to measure with high accuracy, often down to thousandths of an inch or microns.
Plug Gauge
A plug gauge is a precise cylindrical measuring tool used to check the dimensional accuracy of holes in manufactured parts. It's typically used in quality control to ensure that a hole is within specified tolerance limits.
Types of Plug Gauges:
1. Taper Plug Gauge 2. Thread Plug Gauge 3. Reversible Plug Gauge
Electronics Bore Gauge
An Electronic Bore Gauge is a precision measuring instrument used to accurately measure the internal diameter of holes, cylinders, or pipes. Its commonly used in machining, automotive, aerospace, and manufacturing industries for quality control and dimensional inspection.
Key Features:
1. Electronic Display 2. High Accuracy 3. Contact Points 4. Data Output
Bore Gauge
A bore gauge is a precision measuring instrument used to measure the internal diameter of holes, cylinders, or pipes. It is commonly used in engineering and machining applications to ensure that holes are within specified tolerances.
Types of Bore Gauges
1. Telescoping Bore Gauge
2. Dial Bore Gauge
3. Digital Bore Gauge
4. Small Hole Gauge