Spring Gauge Measurement

Further Development ; The Spaekel Tensionometer 

A removable surface for applying a pattern to the spring for use with an optical measurement system to measure forces on the spring such as during shading. A transfer paper is printed with a random pattern of different size dots. The pattern can have two or three different sized dots. The pattern of dots has a pattern density of between about 40% to about 60%. The pattern is printed with inks suitable for skin contact that are not water soluble so as to withstand a moist shading environment. The pattern is removable from the test spring with alcohol.

Locations for device detailed below.

Such as in fig 1b.

about

A handheld apparatus for checking the tension of a flat spring, including: a support having two spaced pegs rigidly secured thereto; a spring mounted on the support between the two pegs; the spring and the pegs being arranged such that a glass needle passing in a predetermined path over and/or under the spring and the pegs is deflected from its normal position and exerts a pressure on the spring in a predetermined direction; a displacement measuring device associated with the spring and adapted to measure the displacement of the spring when a glass needle is in said predetermined path; preprogrammed computing means electrically connected to the displacement measuring device and adapted to display upon a read out a reading for the tension upon the wire when the wire is in said predetermined path; the computing means being connectable to a fully portable electrical power source.