Resumen
The ST350, manufactured by Bridge Diagnostics, Inc., is a strain transducer used to evaluate live-load stresses on structures such as bridges, buildings, cranes, and amusement park rides. It is prewired to connect directly with our dataloggers, and is ideal for structural monitoring data acquisition systems.
Leer másVentajas y características
- La mejora de la relación señal-ruido aporta medidas con mayor resolución
- Suficientemente robusto para uso en duras condiciones ambientales
- Pay for themselves with just a few uses
- Compatible con la mayoría de dataloggers Campbell Scientific
- Rápida instalación con mínima preparación
- Eficiente, fiable, y altamente preciso
Imágenes
Descripción detallada
The ST350 uses Wheatstone bridge circuitry, which converts small changes in resistance to an output voltage that our dataloggers can measure. Its construction avoids the tedious and time-consuming effort required when using foil strain gages. This allows the ST350 to be installed within minutes on steel, concrete, timber, and FRP members.
Preguntas frecuentes
Número de FAQs relacionadas con ST350: 4
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Customers have reported using the ST350 in applications similar to this.
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Use the full-bridge instruction, BrFull(). An example program for the CR1000 can be found in the “Datalogger Programming” section of the “ST350 Strain Transducer Instruction Manual.”
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The ST350 is designed as a full-bridge strain transducer with four active elements that can be directly connected to a datalogger (or a multiplexer connected to a datalogger) without adding a completion module such as the 4WFBS350 or 4WFBS120.
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Generally, the recommended maximum strain for the ST350 is approximately 1,000 microstrain because of real-world installation conditions. The gage itself is capable of a higher microstrain measurement. For information regarding microstrain limits, refer to the “Instructions for Using ST350 Strain Transducer Extensions on Reinforced Concrete Structures” section in Appendix A of the “ST350 Strain Transducer Instruction Manual.”
Compatibilidad
Nota: lo siguiente muestra información de compatibilidad notable. No es una lista de todos los productos compatibles.
Dataloggers
| Producto | Compatible | Nota |
|---|---|---|
| 21X (retired) | ||
| CR10 (retired) | ||
| CR1000 (retired) | ||
| CR10X (retired) | ||
| CR23X (retired) | ||
| CR3000 (retired) | ||
| CR500 (retired) | ||
| CR5000 (retired) | ||
| CR510 (retired) | ||
| CR800 (retired) | ||
| CR850 (retired) | ||
| CR9000 (retired) | ||
| CR9000X (retired) |
Información de compatibilidad adicional
Mounting
The ST350 is affixed to steel, pre-stressed concrete, or wood via two threaded mounting tabs and a tab jig. Alternatively, two C-clamps may be used to mount the sensor to steel. Attachment to reinforced concrete typically requires two threaded mounting tabs, a transducer extension, and an extension jig.
Especificaciones
| Accuracy | ±2% (individually calibrated to NIST standards) |
| Force Required for 1000 με | ~76 N (17 lb) |
| Strain Range | ±2000 με |
| Sensitivity | ~500 με/mV/V |
| Circuit | Full Wheatstone bridge with 4 active 350 Ω foil gages, 4-wire hookup |
| Cable | BDI RC-187 (22 gage, two individually shielded pairs with drain; 15 ft length standard) |
| Material | Aluminum |
| Dimensions | 11.1 x 3.2 x 1.3 cm (4.375 x 1.25 x 0.5 in.) |
| Weight | 85 g (3 oz) |