ARGUSfit B-4 Universal Bridge and Strain Gauge Amplifier

The universal ARGUSfit B-4 measurement module bridge amplifier expands applications for the modular ARGUSfit data acquisition system. Its 4 measurement channels are galvanically isolated and can be configured independently in every respect, for example with individual measurement modes, data rates, or sensor supply voltages.

The measurement module not only covers applications in mechanical structure tests or fatigue strength analyses. It can also be used for vibration measurements with piezoresistive accelerometers or pressure and blast sensors in bridge-based technology since it has 100 ksps per channel and a bandwidth of 40 kHz.

In addition, potentiometric displacement transducers are supported as well as a pure voltage mode from 25 mV to 10V, which, in conjunction with integrated sensor supplies up to 15V/0.5 W per channel, can also serve other active sensors of any kind, such as MEMS.

The B-4 module has a temperature range of -40 to 185°F (-40 to 85°C). As an accessory to the module, imc also offers a patent-pending LEMO terminal connector that can connect measuring cables in seconds with simple screw terminals.

The module covers the requirements for fatigue strength analysis and supports all conceivable bridge and strain gauge modes, including internal quarter bridge extension for 120 Ω, 350 Ω, and 1 kΩ. Integrated calibration resistors allow software-controlled "shunt calibration" for traceable verification of the strain gauge installation or the integrity of the entire signal chain.

The bridge supply can be set to a minimum of 0.5V for strain gauge applications on carbon or composite to minimize self-heating of the strain gauges. In addition, each channel has a further universal sensor supply of up to 15V and 0.5 W to operate any active sensors with voltage output, such as MEMS accelerometers.

The system uses the LEMO.1B connector, which is popular as a quasi-standard, for measurement inputs. In addition, imc provides a new solderless terminal connector, which is patent pending and supports everyday testing, service, and diagnostics. It enables quick test set-ups and troubleshooting without any cable or connector assembly, as measurement cables can be connected directly with screw terminals.

imc DataWorks (imc Test & Measurement GmbH)
Ann Arbor, MI
(248) 356-4311
[email protected]
www.imc-tm.com