strain gauge data acquisition system

Kingmach pays attention to the front end where millivolt signals turn into usable numbers. The input stage handles quarter, half, and full bridge configurations with a PGA that auto-scales gain to keep noise below 0.5 µV per count, which matters when you’re measuring steel strain over a 30-meter span. Excitation voltage stays flat across wide temperature swings; internal logging of board temperature lets you apply corrections later if needed. For compatibility, the system works with 120 Ω, 350 Ω, and 1 kΩ gauges out of the box—just set the gauge factor in the configuration file. If you use vibrating wire strain gauges, a cost-effective interface module passes the frequency signal through the same communication backbone, so you don’t run separate cables. The data acquisition software runs on Windows and handles time-stamping with NTP or GPS sync. It exports to CSV by default and can push data to a SQL database or an MQTT broker for SCADA integration. For users who script in Python or LabVIEW, there’s a documented API with example snippets. Multiple acquisition units can be synchronized via a simple pulse signal, and the software aligns datasets by timestamp, letting you build a distributed array of 100+ channels without chasing clock drift. Enclosures are rated IP65 for outdoor use, with cable glands sized for standard signal cables. If your project needs a non-standard channel count, Kingmach reconfigures the backplane at the factory and ships a unit tested against the load cells you plan to deploy.