Three-Element Rosette Strain Gages for Experimental Mechanics | Micro-Measurements
Micro-Measurements is the world leader in precision three-element rosette strain gages, specifically designed for experimental stress analysis across industries such as automotive, aerospace, spacecraft, civil, and industrial research. These high-precision strain rosettes are essential tools for engineers and researchers who require accurate data on multi-directional strain fields in structural components. By providing reliable insights into stress concentration and distribution, our rectangular and delta rosettes help drive innovation and enhance structural integrity in complex applications.
Why Choose Micro-Measurements Three-Element Rosette Strain Gages?
At Micro-Measurements, our three-element rosettes are meticulously crafted to deliver precise results for even the most challenging experimental mechanics tasks. Whether you're monitoring stress in automotive components or assessing structural performance in aircraft and civil structures, our strain gages provide the data you need to ensure safety, performance, and reliability.
Key Features of Micro-Measurements Three-Element Rosette Strain Gages:
- Multi-Directional Strain Measurement: Designed to measure strain in multiple directions, our rosettes accurately capture complex strain fields in structural components.
- Versatility: Available in both rectangular and delta configurations, enabling engineers to select the ideal rosette for their specific application.
- High Precision and Sensitivity: Our rosettes are engineered to detect even the smallest strain variations, providing highly accurate data for experimental stress analysis.
- Durability and Reliability: Manufactured to withstand extreme environments, our strain gages deliver reliable performance in high-stress and high-temperature conditions.
- Simple Integration: Compatible with a variety of materials and structures, our rosettes are easy to install and integrate into existing stress analysis systems.
Industry Applications for Three-Element Rosette Strain Gages
In aerospace, automotive, and civil engineering, as well as industrial research, three-element rosette strain gages play a vital role in measuring stress and strain across various applications. In aerospace, they are crucial for analyzing the structural integrity of wings, fuselage sections, and other components under extreme conditions, ensuring aircraft safety. Automotive engineers rely on these rosettes to monitor stress in critical areas like chassis, suspensions, and engine mounts, enabling optimized designs and enhanced vehicle durability. In civil engineering, they provide essential data on stress in buildings, bridges, and infrastructure, helping maintain structural integrity and prevent failures.
Beyond engineering, rosette strain gages are invaluable in industrial research, where they help monitor the performance and safety of equipment. By capturing detailed stress data, engineers can predict equipment fatigue and reduce operational downtime. These insights are key to improving both the efficiency and longevity of machines across various industrial applications.
For Our Full Range of Stress Analysis Three-Element Rosette Patterns
CEA Series Tee Rosette Strain Gages |
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Configuration
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Pattern | Res. [Ω] |
Gage Length |
Gage Width |
Matrix Length |
Matrix Width |
Standard STC |
Temperature Range |
Options | |||||||||
| 3 Element Planar Rosette Strain Gage | 062URA |
120, 350 |
0.062 [1.57] |
0.062 [1.57] |
0.32 [8.1] |
0.48 [12.2] |
00, 03, 05, 06, 09, 13 |
–100° to +350°F (–75° to +175°C) |
P2 |
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| 125URA |
120, 350 |
0.125 |
0.060 [1.52] |
0.42 [10.7] |
0.62 [15.7] |
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| 250URA |
120, 350 |
0.250 |
0.120 [3.05] |
0.65 [16.5] |
0.80 [20.3] |
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| Temperature Range | ||||||||||||||||||
| Typically used with: | M-Bond 200 Kit | Room temperature instant curing strain gage adhesive | –25° to +150°F (–30° to + 65°C) | |||||||||||||||
| M-Bond AE-10 Kit | Two-component, 100%-solids epoxy system for general purpose strain gages Room temperature cure, highly resistant to moisture and most chemicals |
–320° to +400°F (–195° to +204°C) | ||||||||||||||||
| M-Bond 600 Kit | Two-component, solvent-thinned, epoxy-phenolic strain gage adhesive for high-performance | –452° to +500°F (–268° to +260°C) | ||||||||||||||||
C4A Series 3-Element Rosette Gages |
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| [in/mm] | [in/mm] | [in/mm] | [in/mm] | |||||||||||||||
| Configuration | Pattern | Res. [Ω] |
Gage Length |
Gage Width |
Matrix Length |
Matrix Width |
Standard STC | Temperature Range | Options | |||||||||
| 3 Element Stacked Rosette Strain Gage | G1350A | 120 |
0.040 [1.02] |
0.045 [1.14] |
0.20 [5.1]] |
0.20 [5.1] |
00, 06, 09, 13 |
–60° to +180°F (–50° to +80°C) |
SP25 |
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| 031WWA | 120 |
0.031 [0.79] |
0.070 [1.78] |
0.28 [7.1] |
0.32 [8.1] |
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| 062WW | 120, 350 |
0.062 [1.57] |
0.050 |
0.26 [6.6] |
0.32 [8.1] |
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| 125WW | 120, 350 |
0.125 [3.18] |
0.070 [1.78] |
0.31 [7.9] |
0.38 [9.7] |
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| 250WW |
120, 350 |
0.250 [6.35] |
0.100 [2.54] |
0.42 [10.7] |
0.48 [12.2] |
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| 3 Element Planar Rosette Strain Gage | 062LR |
120, 350 |
0.062 [1.57] |
0.050 [1.27] |
0.28 [7.1] |
0.41 [10.4] |
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| 125PR | 120, 350 |
0.125 [3.18] |
0.429 [2.01] |
0.30 [7.7] |
0.51 [12.9] |
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| 250LR | 120, 350 |
0.250 [6.35] |
0.250 [6.35] |
0.100 [2.54] |
0.72 [18.3] |
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| Temperature Range | ||||||||||||||||||
| Typically used with: | M-Bond 200 Kit | Room temperature instant curing strain gage adhesive | –25° to +150°F (–30° to + 65°C) | |||||||||||||||
| M-Bond AE-10 Kit | Two-component, 100%-solids epoxy system for general purpose strain gages Room temperature cure, highly resistant to moisture and most chemicals |
–320° to +400°F (–195° to +204°C) | ||||||||||||||||
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Two-component, solvent-thinned, epoxy-phenolic strain gage adhesive for high-performance |
–452° to +500°F (–268° to +260°C) | |||||||||||||||||
C5K Series 3-Element Rosette Gages |
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| [in/mm] | [in/mm] | [in/mm] | [in/mm] | |||||||||||||||
| Configuration | Pattern | Res. [Ω] |
Gage Length |
Gage Width |
Matrix Length |
Matrix Width |
Standard STC | Temperature Range | Options | |||||||||
| 3 Element Planar Rosette Strain Gage | S5198 | 350 |
0.014 [0.36] |
0.014 [0.36] |
0.08 [2.0] |
0.15 [3.8] |
00,03,05, 06,09,13 |
–100° to +400°F (–75° to +205°C) |
23P, 39P, 2R |
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| 062PR | 350 |
0.062 [1.57] |
0.062 [1.57] |
0.250 [6.35] |
0.460 11.68 |
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| Temperature Range | ||||||||||||||||||
| Typically used with: | M-Bond 200 Kit | Room temperature instant curing strain gage adhesive | –25° to +150°F (–30° to + 65°C) | |||||||||||||||
| M-Bond AE-10 Kit | Two-component, 100%-solids epoxy system for general purpose strain gages Room temperature cure, highly resistant to moisture and most chemicals |
–320° to +400°F (–195° to +204°C) | ||||||||||||||||
| M-Bond 600 Kit | Two-component, solvent-thinned, epoxy-phenolic strain gage adhesive for high-performance | –452° to +500°F (–268° to +260°C) | ||||||||||||||||
WK Series 3-Element Rosette Gages |
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| [in/mm] | [in/mm] | [in/mm] | [in/mm] | |||||||||||||||
| Configuration | Pattern | Res. [Ω] |
Gage Length |
Gage Width |
Matrix Length |
Matrix Width |
Standard STC | Temperature Range | Options | |||||||||
| 3 Element Stacked Rosette Strain Gage | 060WR |
350, 1000 |
0.060 [1.52] |
0.060 [1.52] |
0.24 [6.1] |
0.30 [7.6] |
00,03,05 ,06,09,13 |
–452° to +550°F (–269° to +290°C) |
W, SP11 |
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| 120WR | 350 |
0.120 [3.05] |
0.080 [2.03] |
0.34 [8.6] |
0.40 [10.2] |
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| 250WR |
350, 1000 |
0.250 [6.35] |
0.125 [3.18] |
0.51 [13.0] |
0.60 [15.2] |
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| 3 Element Planar Rosette Strain Gage | 062RB |
350, 1000 |
0.062 [1.57] |
0.062 [1.57] |
0.42 [10.7] |
0.46 [11.7] |
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| 125RA | 350 |
0.125 [3.18] |
0.062 [1.57] |
0.39 [9.9] |
0.46 [11.7] |
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| 250RA | 350 |
0.250 [6.35] |
0.125 [3.18] |
0.78 [19.8] |
0.93 [23.6] |
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| 250RD | 1000 |
0.250 [6.35] |
0.125 [3.18] |
0.78 [19.8] |
0.93 [23.6] |
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| Temperature Range | ||||||||||||||||||
| Typically used with: | M-Bond 200 Kit | Room temperature instant curing strain gage adhesive | –25° to +150°F (–30° to + 65°C) | |||||||||||||||
| M-Bond AE-10 Kit | Two-component, 100%-solids epoxy system for general purpose strain gages Room temperature cure, highly resistant to moisture and most chemicals |
–320° to +400°F (–195° to +204°C) | ||||||||||||||||
| M-Bond AE-15 Kit | Two-component, 100%-solids epoxy system for general purpose strain gages Room temperature cure, highly resistant to moisture and most chemicals |
–320° to +200°F (–195° to +95°C) | ||||||||||||||||
EA Series 3-Element Rosette Gages |
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| [in/mm] | [in/mm] | [in/mm] | [in/mm] | ||||||||||||||
| Configuration | Pattern | Res. [Ω] |
Gage Length |
Gage Width |
Matrix Length |
Matrix Width |
Standard STC | Temperature Range | Options | ||||||||
| 3 Element Stacked Rosette Strain Gage | 031RB |
120 |
0.031 [0.79] |
0.031 [0.79] |
0.19 [4.8] |
0.24 [6.1] |
00, 03, 05, 06, 09, 13 |
–100° to +350°F (–75° to +175°C) |
E, EL, W, SP11 |
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| 062RB | 120 |
0.062 [1.57] |
0.062 [1.57] |
0.42 [10.7] |
0.46 [11.7] |
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| 125RD |
350 |
0.125 [3.18] |
0.062 [1.57] |
0.40 [10.2] |
0.47 [11.9] |
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| Temperature Range | |||||||||||||||||
| Typically used with: | M-Bond 200 Kit | Room temperature instant curing strain gage adhesive | –25° to +150°F (–30° to + 65°C) | ||||||||||||||
| M-Bond AE-10 Kit | Two-component, 100%-solids epoxy system for general purpose strain gages Room temperature cure, highly resistant to moisture and most chemicals |
–320° to +400°F (–195° to +204°C) | |||||||||||||||
| M-Bond AE-15 Kit | Two-component, 100%-solids epoxy system for general purpose strain gages Room temperature cure, highly resistant to moisture and most chemicals |
–320° to +200°F (–195° to +95°C) | |||||||||||||||
Many Directions, One sensor.. the 3-Element Rosette
Imagine a firefighter trying to put out three fires at once by spraying a hose back and forth over them all. There is never enough water in one place to extinguish the blaze. Now try to imagine a stress analyst trying to measure strain with three discrete linear strain gages in different directions. 3-element rosettes are used where the direction of peak strain (known as the maximum and minimum principal strains) is unknown. By recording the three separate strains, a calculation can additionally tell the user direction of the strains, and shear strains, and if the material properties are known the stresses can also be calculated – not possible with a single strain measurement.
An example of an automotive steering knuckle that can be loaded due to road surface changes, steering, and braking. All of which will likely have unique directions of principal strains/stresses. When simultaneously sampled the three-element rosette can show how the principal strain directions and magnitude can change with different loading conditions.
Knowledge in the selection and application of rosettes is critical to their successful use in experimental stress analysis. Knowledge in the selection and application of rosettes is critical to their successful use in experimental stress analysis
The simple determination of when a three-element rosette should be used is the answer to the question, “Are the directions and magnitudes of the principal strains and stresses known?” If the answer is no, then a three-element rosette most likely is needed.
Our TechNote 515 provides guidance regarding rosette selection, application, and data reduction for all types of rosette gages.
Rosettes are available in two distinct types – rectangular (0-45-90° between grids) and delta (0-60-120° between grids) with the former being the most common. Additionally, they can be planar (grids next to each other) or stacked (grids on top of one another). Accuracy comparisons can be discussed, but each type can suit different applications.
They are available as pre-wired miniatures for PCBA testing (as small as 2 x 4mm with 0.36mm grids), to large planar versions best suited for plastic composites, including GFRP, CFRP (carbon composite), and sandwich structures.
Take Your Stress Analysis to the Next Level with Micro-Measurements
Ready to enhance your experimental mechanics with precise, multi-directional strain measurement? Contact our team today to learn how Micro-Measurements' three-element rosette strain gages can provide accurate data for your critical projects. Request a demo or visit our product catalog to explore the full range of strain gages available for your industry.
Contact Our Three-Element Rosette Pattern Strain Gages Experts
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