Top Sensor Technology (TST) Strain Gauge Core Features
Top Sensor is a professional foil strain gauge manufacturer focused on load cell, force, torque & pressure sensor OEM, with balanced precision, cost and customization capability.
1. Material & Construction Advantages
Sensitive Foil Material
Standard constantan (Cu-Ni alloy) foil, stable gauge factor ~2.0, low temperature drift
Optional Karma alloy for higher long-term stability & fatigue resistance
Ultra-thin etched foil structure, uniform strain transfer, tiny grid sizes available (0.5mm–5mm grid length)
Multi-Carrier Base Options
3 substrate grades for different application needs:
Phenolic aldehyde: Low-cost, general weighing load cells
Polyimide (PI): High flexibility, better temperature stability, anti-fatigue
Epoxy: High rigidity, for precision stress testing & industrial transducers
2. Electrical & Precision Performance
Resistance Range Coverage
Full resistance lineup for bridge circuit design: 120Ω / 350Ω / 500Ω / 1000Ω (most popular 350Ω for load cells)
Core Accuracy Indicators
Low hysteresis: ±0.05% FS, minimal repeat error for static weighing
Nonlinear error ≤0.1% full scale
Strain measuring range: 0 ~ 1000 microstrain (με), fits standard metal elastic bodies
Stable gauge factor consistency within production batches, easy mass calibration
Reliable Soldering Design
Full bridge EB series adopts 5-solder-point layout to avoid open circuit under vibration
Uniform copper terminal pads, good solder wettability, easy wire bonding for mass production
3. Environmental & Temperature Features
Standard operating temperature: -20℃ ~ +80℃
Built-in self-temperature compensation matching steel / aluminum elastic bodies
Temperature compensation range: +10℃ ~ +80℃ to offset thermal strain drift
Low creep characteristic, suitable for long-duration static load monitoring
4. Complete Product Series (Multi-Type Matching All Sensors)
AA Linear Single Strain Gauge: Uniaxial stress measurement, compact tiny sizes for miniature force sensors
FB Half-Bridge Dual Parallel Gauge: Simplify half-bridge circuit, reduce wiring work
EB-A Full-Bridge Integrated Gauge: 4 gauges prefabricated into one chip, direct Wheatstone bridge output, high integration for load cell mass production
HA Shear Strain Gauge: Specialized for shear beam truck scales, platform weighing sensors
CA Triaxial Rosette Gauge (0°/45°/90°): Multi-direction stress analysis, pressure transducer elastic bodies
5. Application-Oriented Practical Features
Wide Compatibility
Perfect bonding with steel, aluminum alloy elastic bodies; matched adhesive recommendation provided.
Customization Support (Key Brand Advantage)
Custom grid length, resistance, bridge layout
Custom wire lead length, pre-wired strain gauge finished parts
Custom substrate material, special dimension for mini/micro sensors
OEM blank strain gauge without logo for third-party sensor factories
Cost & Mass Production Edge
Domestic factory production, competitive price vs imported HBM/VPG/KYOWA
Stable batch supply for large-scale weighing sensor manufacturers (truck scale, tank scale, micro force sensor)
Small MOQ available for lab testing & small-batch prototype development
6. Typical Application Scenarios
Industrial weighing load cells (shear beam, S-type, column type)
Torque transducers & static force sensors
Micro pressure sensors
Structural stress test & material mechanical experiment
Automation equipment force monitoring
Quick Summary of Differentiators
Integrated full-bridge strain gauge simplifies sensor assembly
Ultra-low hysteresis for commercial weighing precision
Rich substrate & resistance options covering low-cost to precision grade
Strong custom service for sensor OEM manufacturers
Stable performance at -20~80℃ industrial ambient temperature
