Recent Blogs
Torsion Dynamometer: Relative Twist and Ideal Shaft Calculations
Explore shaft-twist measurement and calculate torque from power and speed. Compare ideal solid-shaft shear and modulus-scaled twist without assigning a shaft rating.
Prony-Brake Rule: Perpendicular Force-Arm Ledger
Measure shaft power with a Prony brake — how the friction dynamometer works, the torque formula, worked example, and design tradeoffs for engine test cells.
Prony Brake: Declared Torque-and-Power Ledger
Prony brake explained — how this friction dynamometer measures shaft power on engines, motors and turbines, with formula, worked example and field calibration tips.
Webber Dynamometer Mechanism: How the Friction Brake Measures Shaft BHP, Parts and Formula
Explore ideal dynamometer torque from perpendicular force and moment arm. Compare units and assumed reference values; no instrument calibration is calculated.
Neer's Rotary Transmitting Dynamometer: Chains, Springs and Dials
Explore Neer's chain-and-spring transmitting dynamometer. Calculate torque, spring extension and shaft power using recorded tension and an entered calibration factor.
Friction Machine: Torque-Arm Brake Power Calculator | FIRGELLI
Calculate Prony-style brake torque and absorbed power from net perpendicular force, arm length and RPM. Keep torque-arm and rope-brake geometry separate.
Dynamometer (form) Mechanism Explained: How It Works, Parts, Diagram, Formula & Uses
Explore reaction-torque measurement with a restrained housing and load cell. Calculate torque and shaft power from measured force, arm length and speed.
Registering Dynamometer Mechanism Explained: How It Works, Parts, Diagram, Formula and Uses
Calculate mean torque, work per load cycle and mean power for two repeating torque levels at constant shaft RPM, with a schematic mechanical recorder.