Due to its tiny size, the strain gauge rosette RF9 in miniature is especially suitable for circuit boards and very small components.
RF (Roseta)
Thanks to its three stacked measuring grids, the smallest version of the RF9 miniature SG rosette is only 5 mm in size. It enables biaxial stress states with unknown principal stress directions to be determined in the most confined of spaces, owing to its small diameter. The SG rosette is, therefore, particularly suitable for measurements on electric circuit boards or especially small components.
The following variants are available:
The miniature rosettes are now also available with geometries that allow for measurements in compliance with the JEDEC/IPC 9704 standard.
If space is a constraint: Analysis of biaxial stress states with unknown principal stress direction in the most confined space
No soldering on the strain gauge required
Save time and start straight away!
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| Code | Longitud de la rejilla de medición | Longitud de la rejilla de medición | Anchura de la rejilla de medición | Anchura de la rejilla de medición | Longitud del soporte | Longitud del soporte | Anchura del soporte | Anchura del soporte | Resistencia nominal | Adaptación de respuesta a la temperatura | Configuración de conexión |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1-RF91-0.8/120ZE | 0.8 mm | 0.031 in | 0.9 mm | 0.035 in | 5 mm | 0.197 in | 5 mm | 0.197 in | 120 Ohms, 120 Ohm | Ferritic steel (10.8 ppm/K; 6.0 ppm/°F), Acero ferr. (10,8 ppm/K) | Leads, Hilos de conexión |
| 1-RF91-0.8/120_W | 0.8 mm | 0.031 in | 0.9 mm | 0.035 in | 5 mm | 0.197 in | 5 mm | 0.197 in | 120 Ohms, 120 Ohm | Ferritic steel (10.8 ppm/K; 6.0 ppm/°F), Acero ferr. (10,8 ppm/K) | Integrated solder tabs, Superficies para soldar integradas |
| 1-RF91-1.4/350VE | 1.4 mm | 0.055 in | 1.4 mm | 0.055 in | 6 mm | 0.236 in | 6 mm | 0.236 in | 350 Ohms, 350 Ohm | Ferritic steel (10.8 ppm/K; 6.0 ppm/°F), Acero ferr. (10,8 ppm/K) | Leads, Hilos de conexión |
| 1-RF91-1/120DE | 1 mm | 0.0394 in | 1 mm | 0.039 in | 5.2 mm | 0.205 in | 5.2 mm | 0.205 in | 120 Ohms, 120 Ohm | Ferritic steel (10.8 ppm/K; 6.0 ppm/°F), Acero ferr. (10,8 ppm/K) | Leads, Hilos de conexión |
| 1-RF91-1/120ZE | 1 mm | 0.0394 in | 1 mm | 0.0394 in | 5.2 mm | 0.205 in | 5.2 mm | 0.205 in | 120 Ohms, 120 Ohm | Ferritic steel (10.8 ppm/K; 6.0 ppm/°F), Acero ferr. (10,8 ppm/K) | Leads, Hilos de conexión |
| 1-RF93-0.8/120ZE | 0.8 mm | 0.031 in | 0.9 mm | 0.035 in | 5 mm | 0.197 in | 5 mm | 0.197 in | 120 Ohms, 120 Ohm | Aluminium (23 ppm/K; 12.8 ppm/°F), Aluminio (23 ppm/K) | Leads, Hilos de conexión |
| 1-RF93-0.8/120_W | 0.8 mm | 0.031 in | 0.9 mm | 0.035 in | 5 mm | 0.197 in | 5 mm | 0.197 in | 120 Ohms, 120 Ohm | Aluminium (23 ppm/K; 12.8 ppm/°F), Aluminio (23 ppm/K) | Integrated solder tabs, Superficies para soldar integradas |
| 1-RF93-1.4/350VE | 1.4 mm | 0.055 in | 1.4 mm | 0.055 in | 6 mm | 0.236 in | 6 mm | 0.236 in | 350 Ohms, 350 Ohm | Aluminium (23 ppm/K; 12.8 ppm/°F), Aluminio (23 ppm/K) | Leads, Hilos de conexión |
| 1-RF93-1/120ZE | 1 mm | 0.0394 in | 1 mm | 0.0394 in | 5.2 mm | 0.205 in | 5.2 mm | 0.205 in | 120 Ohms, 120 Ohm | Aluminium (23 ppm/K; 12.8 ppm/°F), Aluminio (23 ppm/K) | Leads, Hilos de conexión |
| 1-RF95-0.8/120ZE | 0.8 mm | 0.031 in | 0.9 mm | 0.035 in | 5 mm | 0.197 in | 5 mm | 0.197 in | 120 Ohms, 120 Ohm | Austenitic steel (16 ppm/K; 8.9 ppm/°F), Acero aust. (16 ppm/K) | Leads, Hilos de conexión |
| 1-RF95-0.8/120_W | 0.8 mm | 0.031 in | 0.9 mm | 0.035 in | 5 mm | 0.197 in | 5 mm | 0.197 in | 120 Ohms, 120 Ohm | Austenitic steel (16 ppm/K; 8.9 ppm/°F), Acero aust. (16 ppm/K) | Leads, Hilos de conexión |
| 1-RF95-1.4/350VE | 1.4 mm | 0.055 in | 1.4 mm | 0.055 in | 6 mm | 0.236 in | 6 mm | 0.236 in | 350 Ohms, 350 Ohm | Austenitic steel (16 ppm/K; 8.9 ppm/°F), Acero aust. (16 ppm/K) | Leads, Hilos de conexión |
| 1-RF95-1/120ZE | 1 mm | 0.0394 in | 1 mm | 0.0394 in | 5.2 mm | 0.205 in | 5.2 mm | 0.205 in | 120 Ohms, 120 Ohm | Austenitic steel (16 ppm/K; 8.9 ppm/°F), Acero aust. (16 ppm/K) | Leads, Hilos de conexión |
| F Series - Hoja de cracterísticas | Data Sheets | English |
| F Series - Hoja de cracterísticas | Data Sheets | German |
| F Series - Hoja de características | Data Sheets | Japanese |
| F Series - Hoja de características | Data Sheets | French |
| F Series - Hoja de características | Data Sheets | Spanish |
| F Series - Hoja de características | Data Sheets | Portuguese |
| F Series - Hoja de características | Data Sheets | Chinese |
| F Series - Hoja de características | Data Sheets | Italian |
Certificates and Approvals
| Strain Gauges - Declaración de Conformidad | Declaration of Conformity | English |
| Type/technology | Foil strain gauge |
| Application | Stress Analysis / structural testing |
| Geometry | 3-grid rosette |
| Measuring grid length | 1 mm, 1.4 mm, 0.8 mm |
| Measuring grid length | 0.0394 in, 0.055 in, 0.031 in |
| Measuring grid width | 1 mm, 1.4 mm, 0.9 mm |
| Measuring grid width | 0.0394 in, 0.055 in, 0.035 in, 0.039 in |
| Carrier length | 5.2 mm, 6 mm, 5 mm |
| Carrier length | 0.205 in, 0.236 in, 0.197 in |
| Carrier width | 5.2 mm, 6 mm, 5 mm |
| Carrier width | 0.205 in, 0.236 in, 0.197 in |
| Temperature range | Limited temperature range |
| Nominal resistance | 120 Ohms, 350 Ohms |
| Gauge factor (measuring grid material) | Constantan (ca 2.0) |
| Temperature response | Ferritic steel (10.8 ppm/K; 6.0 ppm/°F), Austenitic steel (16 ppm/K; 8.9 ppm/°F), Aluminium (23 ppm/K; 12.8 ppm/°F) |
| Maximum elongation | Standard |
| Fatigue life | Standard |
| Connection configuration | Leads, Integrated solder tabs |
| Mounting | Bondable |
| Grid protection | Covered |
List of accessories available for all variants of this family
Roseta miniatura RF91 con cable de cobre y cable plano adheridos
Vea el vídeo y aprenda a pegar la roseta en miniatura RF91 en una PCB:
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, MicroStrain and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.