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Vibrating Wire Strain Gauges for Bridge, Tunnel & Dam Monitoring: Complete Selection Guide
The global construction industry is experiencing a massive surge in large-scale infrastr...
Strain Gauge Sensor Modules for Demanding Applications
strain gauge sensor module
Strain gauge sensor modules are the workhorses of strain measurement, turning tiny deformations into clear, actionable data. In geotechnical projects—think tunnels, dams, or deep excavations—they keep an eye on structural integrity where it matters most. Kingmach, as a professional manufacturer of geotechnical instruments, supplies modules that slot right into these scenarios. Our focus isn’t just on selling a part; we make sure the module fits your sensor geometry, your logging system, and your field conditions. From standard quarter-bridge setups to more complex rosette configurations, we match the electronics to what’s already in the ground or about to go in. Because when you’re monitoring stress underground, you don’t want to wrestle with the measurement chain. Customization starts early, and our technical team stays with you through installation. That’s the practical difference a dedicated strain gauge module supplier brings.
Technical Detail
Configured around process stability, mold life, and long-term uptime.
A strain gauge sensor module typically comprises signal conditioning circuitry, an analog-to-digital converter, and a communication interface. The module excites the strain gauge bridge, amplifies the microvolt-level signals, and outputs digital readings via RS-485, CAN bus, or a simple analog voltage. Kingmach modules support common bridge configurations—quarter, half, or full bridge—and accommodate strain gauge resistances from 120Ω to 1000Ω, which covers most foil and semiconductor gauges used in civil engineering. We don’t just assemble boards; we tune the filtering to suppress 50/60 Hz noise that often plagues field measurements, and we weatherproof the housing for long-term installations in boreholes or on exposed steel surfaces. Because every project has its own wiring distances and power constraints, our modules accept a wide supply range, and low-power variants are available for battery-operated loggers. Beyond hardware, Kingmach offers firmware customization for specific sampling rates, alarm thresholds, or data protocols. We stock modules for immediate trial, but most orders end up with some level of adaptation—changing the connector pinout, adding a temperature sensor channel, or integrating with an existing SCADA system. Our global distribution network means prototypes ship fast, and our engineers join remote calls to step through commissioning. For monitoring companies and engineering consultants, that removes a lot of guesswork in the field.
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Products
Production modules
Smart vibrating wire strain gauge (surface welded model) JMZX-206HAT
Smart vibrating wire strain gauge (surface welded model) JMZX-206HAT
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Smart vibrating wire strain gauge (surface model) JMZX-212HAT/HB
Smart vibrating wire strain gauge (surface model) JMZX-212HAT/HB
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Rebar Strainmeters ( VW & Smart Type) JMZX-4XXHAT/HB
Rebar Strainmeters ( VW & Smart Type) JMZX-4XXHAT/HB
View DetailsFAQ
Common technical questions
What strain gauge configurations does your module support?
Kingmach modules handle quarter-bridge (1/4 bridge), half-bridge, and full-bridge setups. We match the internal completion resistors to your gauge type—typically 120Ω or 350Ω for metal foil gauges—and adjust excitation voltage for optimal signal-to-noise ratio. Just send the gauge specs, and we'll configure the module accordingly.
Can I use these modules with wireless data loggers?
Absolutely. Most of our modules have a low-power mode that draws under 2mA in standby, making them suitable for battery-powered loggers. Output can be RS-485 Modbus, which most wireless nodes accept. If your system uses a custom protocol, our firmware can be adapted.
How do you ensure accuracy in long-term monitoring?
We use onboard temperature compensation and stable voltage references. Drift is typically within industry-expected limits; for critical applications, we can apply additional calibration over the operating temperature range. Regular checks against a known shunt resistor also help, and we can supply a shunt calibration fixture.
What support do you provide during installation?
We ship a detailed wiring guide with each module, and our engineers are available for video calls during the first installations. If cable lengths are particularly long, we can recommend shielded cabling and termination practices. For large deployments, we sometimes send a technician for on-site training.
Can the module be waterproofed for outdoor use?
Yes, standard versions come with a conformal coating, and we offer IP65 or IP68 enclosures as an option. For submersion in standpipes or boreholes, we use potted aluminum or stainless steel housings with cable glands. Let us know the expected conditions, and we'll recommend the right ingress protection.
Need a solution for your project?
Share your product type, target capacity, and application requirements. Our team can review the details and recommend a practical next step.