Modal Testing System

Modal testing systems from Kingmach are used on everything from concrete spillways to steel truss bridges, and each project tends to bring its own constraints—channel count, sensor types, weather exposure, you name it. The core of the system is a multi-channel data acquisition unit that handles IEPE accelerometers and can sync with other sensor types like displacement transducers if needed. Sampling rates and anti-aliasing filters are set to match the structure's expected frequency range, typically from a fraction of a hertz for large dams up to several hundred hertz for steel components. Post-processing software extracts mode shapes and damping ratios, and it lets you animate deflected shapes so you can spot weak points visually. Since field conditions are rarely ideal, we built in checks for cable faults and sensor overload, which saves a lot of troubleshooting time. Custom orders are common: maybe you need a higher channel count, a weatherproof enclosure with solar power, or integration with existing SCADA systems. Our support team can walk you through the first few tests remotely, and if a channel goes down, we have spare parts in regional hubs. Compared to renting equipment for each campaign, buying a system often makes sense when monitoring is ongoing or you need repeatable setups across multiple sites.