Instrumented Cantilever Load Cell Beam
Provides a precision-machined aluminum alloy flexure beam with four bonded 350 Ω foil strain gauges.
Biomedical Engineering / Medical Force Sensor
FREE TO EXPLORELABORATORY 02 · BIOMEDICAL ENGINEERING
Strain-Gauge Cantilever Beam Force Sensor & Sensitivity Calibration
Measure the differential voltage output of a full-bridge foil strain gauge on a medical force sensor as a function of applied tip load to evaluate gauge factor and flexural sensitivity. Explore interactive physiological instrumentation simulation, biomechanics, and biomedical engineering telemetry.
BIOINSTRUMENTATION · BIOSIGNALS · BIOMECHANICS · IMAGING
Your virtual biomedical engineering laboratory.
BRIDGE DIFFERENTIAL OUTPUT V_OUT—
PHYSIOLOGICAL & TEST CELL TELEMETRY
Ready to sample with Force F = 3.0 N.
Adjust Force F, then execute biomedical trial.
Biomedical engineering telemetry and physiological states are evaluated rigorously using 64-bit IEEE 754 precision. Residuals reflect ordinary least-squares regression across successive observations. Continuous data structures support high-fidelity biological and physiological modeling.
Biomedical assumptions and boundary condition limits
The linear model applies strictly within the elastic limit of the aluminum beam (strain ε < 1000 με). Evaluated on a medical-grade aluminum alloy cantilever beam (E = 70 GPa) with four 350 Ω foil strain gauges (GF = 2.10) wired in a full-bridge circuit energized by a 10.0 V DC reference. Sensitivity S_f is evaluated across loads from 1.0 N to 6.0 N.
Biomedical apparatus & physiological sensors.
Full Wheatstone Bridge Conditioning Board
Arranges two upper tensile and two lower compressive gauges in push-pull bridge configuration.
Class F1 Precision Calibration Deadweight Set
Applies traceable vertical calibration forces from 1.0 N to 6.0 N (±0.01% tolerance).
Stable Low-Noise Bridge Power Supply
Provides highly regulated 10.000 V DC excitation with < 50 μV ripple.
Precision Instrumentation Amplifier & DMM
Amplifies microvolt bridge output and digitizes differential signals with 6.5-digit precision.
Rigid Clamped Mounting Fixture
Prevents base rotation or compliance slippage during tip load application.
FOLLOW THE METHOD
A reason behind every step.
Measure the differential voltage output of a full-bridge foil strain gauge on a medical force sensor as a function of applied tip load to evaluate gauge factor and flexural sensitivity. Standardized parameter settings: 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 N.
01
Bridge Zero Balancing and Shunt Calibration
Secure the cantilever base into the rigid clamping block and adjust the bridge balance circuit until unloaded differential output reads 0.0000 mV.
02
Excitation Voltage Verification
Measure bridge input excitation voltage at terminals with calibrated DMM; confirm steady 10.000 V reference.
03
Initial Load Increment Application
Gently place the 1.000 N calibration weight onto the knife-edge tip loading hanger without dynamic shock.
04
Settling and Telemetry Acquisition
Allow 15 seconds for viscoelastic relaxation and mechanical vibrations to settle; record stabilized differential bridge voltage V_out in millivolts.
05
Stepwise Loading Progression
Progressively add calibration masses to achieve loads of 2.0, 3.0, 4.0, 5.0, and 6.0 N, logging stabilized output voltage at each load.
06
Sensitivity Regression and Linearity Verification
Plot differential voltage V_out against applied force F, performing least-squares linear regression to determine force sensitivity S_f.
YOUR NOTEBOOK · 0 OBSERVATIONS
Turn measurements into biomedical engineering insight.
Points are your recorded observations. The solid regression line validates Medical Force Sensor mathematical scaling.
LINEAR REGRESSION FIT · y = mx + b
V_out = S_f · F = 2.4500 · F
| # | Applied Normal Force F (N) | Bridge Differential Output V_out (mV) | Applied force F (N) | Differential output V_out (mV) | Remove |
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