Overview of AA Series Resistance Strain Gauges

This document provides detailed specifications and structural information for various models within the AA series resistance strain gauges, including sub-series AB, BB, and BB-A. The data focuses on model identification, grid dimensions, backing dimensions, and construction drawings.

1. Product Models and Dimensions

The AA series includes multiple models such as BF(BA, BE)120-1AA, BF 350-1AA, BF(BA, BE)350-6AA, BF(BA, BE)1000-3AA, and BF(BA, BE)2000-3AA among others. Each model is characterized by specific grid dimensions (sensitive grid size) and backing dimensions (base size), measured in millimeters.

Examples of grid dimensions range from 1.0×3.14 mm to 10.3×3.9 mm, while backing dimensions vary from 3.0×2.44 mm to 7.3×4.6 mm. These dimensions are critical for selecting the appropriate strain gauge based on application requirements.

2. AB Series Resistance Strain Gauges

The AB series includes models such as BF(BA, BE)350-1AB, BF(BA, BE)350-3AB, and BF(BA, BE)1000-3AB. Grid dimensions for these models range from 1.6×1.5 mm to 3.8×3.1 mm, with backing dimensions from 8.0×4.1 mm to 9.6×2.7 mm. This series offers options for applications requiring smaller grid sizes.

3. BB Series Resistance Strain Gauges

Models in the BB series include BF(BA, BE)350-2BB, BF(BA, BE)350-3BB, and BF(BA, BE)1000-2BB. Grid dimensions vary between 2.6×3.0 mm and 3.0×3.1 mm, while backing dimensions range from 6.3×7.5 mm to 6.8×7.6 mm. These models provide a balance between grid size and backing size for medium-scale applications.

4. BB-A Series Resistance Strain Gauges

The BB-A series features models such as BF(BA, BE)350-3BB-A and BF(BA, BE)1000-3BB-A. Both models have grid dimensions of 3.0×3.1 mm and backing dimensions of 6.8×7.6 mm, indicating standardized sizing within this sub-series.

5. Construction Drawings and Grid Distance

The document references construction drawings for each series, which illustrate the physical layout and structural details of the strain gauges. Grid distance, an important parameter for strain gauge performance, is also noted but specific values are not detailed in the text provided.

Critical Information and Best Practices

• Selection of strain gauge models should consider both grid and backing dimensions to ensure compatibility with the measurement surface and required sensitivity.
• Understanding the structural design through construction drawings aids in proper installation and application.
• Grid distance impacts the strain gauge's sensitivity and should be matched to the strain field characteristics of the application.

This structured summary captures the essential specifications and structural information necessary for selecting and applying AA series resistance strain gauges effectively.