The eSpider 6400™ Interface Card enables for the easy integration of many sensors. It was used for one of our Structural Health Monitoring (SHM) systems where numerous strain gages (up to 128) were required along the structure.

The eSpider, with its 64 sensor ports, helps organize the connection of multiple sensors. It collects measurement data from the sensors, performs A/D conversion, and is capable of converting the measurements into engineering units. One 8-pin expansion port is provided for future feature enhancements and a Power Over Ethernet (POE) port is provided for power. The eSpider uses a quarter Wheatstone bridge circuit and has an integrated variable potentiometer to fine-tune DC bios (and eliminate effects when long/variable wire lengths are used). It also provides shielded RJ45 interconnections to reduce noise. The eSpider uses high quality components to ensure excellent data quality. The unit reduces noise, wiring and fine-tuning complexities of integrating wired analog sensor along a long structure, thus easing in-field deployment. The module is approximately 6x5x5 inches.