ST350

Strain Transducer

The highly accurate ST350 Strain Transducer from Bridge Diagnostics brings great efficiency and reliability to measuring live-load stresses on structures. With minimal surface preparation, you can quickly install the transducer and avoid the tedious and time-consuming effort involved when using foil strain gages. The ST350 is rugged and can be installed in any weather.

Features

  • Used for recording strains on highway bridges, railroad bridges, lock gates, amusement park rides, and other structures in which a short-term live-load can be easily applied.
  • Attaches to steel, prestressed and reinforced concrete, and timber members in 5 minutes.
  • Provides between three and four times the output of a typical quarter-arm foil gage installation. Improved signal-to-noise ratio means higher-resolution measurements.
  • Can be used with most data acquisition systems that support full-bridge type sensors.
  • Pay for themselves with just a few uses.
  • Used over the last two decades for recording millions of strain measurements on all types of structures, often in harsh field conditions.

Specifications

  • Accuracy: ±2%, individually calibrated to NIST standards
  • Force required for 1000 με: ~17 lbs. (76 N)
  • 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 w/drain; 10 ft length standard
  • Material: Aluminum