DLC APPLICATION ENGINEERING
Donut Load Cells for Fastener Preload Testing
Measure axial clamp force during bolted-joint and aerospace assembly-tool evaluation.
Define the installed load path and clearance.
State fastener size, expected preload, tightening method, joint stiffness and available washer stack.
Keep installation torque out of the sensing element. A load reading alone does not approve a safety-critical joint.
Agree rated force, peaks and sample acceptance.
Specify working load in lbf, maximum credible peak, OD / ID / height in inches, support and loading-ring geometry, installation method, cycle rate and temperature. Then identify excitation, mV/V sensitivity, instrument and required calibration points.
Approved drawings and configuration-specific documentation govern the supplied sensor. Application examples do not establish a safety-system or regulated-use certification.