What is tensometer? for tensile testing?
Answers:
A tensometer is Used by aircraft engineers. To check the cable tension of a cable in lbs per inch .Example if you adjust a operating cable for the ailerons or rudder
The Tensometer
The principle used is very simple and measures the tension of the strings in your racket. A sensor is clipped the centre of the strings, you press a button and the tension is displayed in a few seconds.
The method used is similar in many ways to the player who gently hits the strings of their racket with the frame of another racket. This produces a tone at a particular frequency. A higher note represents tighter strings, and naturally a lower note indicates looser strings.
The Tensometer does this electronically. A range of frequencies is compared, and the one that most closely matches the response of your strings is selected. The Tensometer converts this selected frequency to a value that is displayed for you to see.
There have been several models of the Tensometer with each one designed for a different purpose. The main difference is how frequently you are likely to use it. A racket stringer will use one many times per day, and a player perhaps once a week.
A tensometer measures the Young's modulus of a material. Young's modulus is a coefficient identifying how much it strains under stress. The sample is placed between two grips and a force is applied to the specimen. Force and extension are measured giving rise to a detailed analysis of material strength and behaviour. You can refer to any material science book for further information.
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