kinemometer

An electromagnetic device, similar to the velocity ballistocardiograph, for measuring contraction and relaxation in a tendon reflex.

He suggested that the Lawson kinemometer, a quantitative device for testing the Achilles' tendon jerks, might be a useful method for surveying families for hypothyroidism.

Typical reflexes of hypothyroid and hyperthyroid children are described; the kinemometer proved useful in diagnosis and treatment of thyroid disorders.

A highly sensitive type of tachometer.

M. Jacquemier, inventor of the kinemometer, dynamometer, and other useful appliances, gained the Plumey Prize; and M. Marcel Deprez the Fourneyron, for his ingenious electric experiments on the Chemin-de-fer du Nord.

The bureau's researches in the war involving electrical principles covered many subjects—the location of enemy batteries by means of sound-recording mechanisms, the electrical control of airplane guns to fire between the propeller blades, time studies of gunfiring, variation of gun pressures, ejection-velocity studies by recoil meters, the development of kinemometers to measure the jumps and whip of a gun on firing, the measurement of projectile velocities inside the gun, and scientific studies of the gun blast.