If you are looking for how to make a homemade dynamometer, here are the instructions to do it with little time and few materials.
A dynamometer is an object whose usefulness is to measure the force they exert with respect to other objects.
To make a simple dynamometer suitable for measuring the weight of objects in an easy and simple way, too many elements are not needed and the result can be spectacular and useful.
What do you need to make a homemade dynamometer?
- A wooden strip one meter long.
- Graph paper.
- A spring with support.
- A small container as a support.
- Objects of known mass.
- A pencil.
- A wooden base.
- A couple of nails.
- A small plastic plate.
- Thin rope
Instructions to make a homemade dynamometer
- We take the wooden strip and nail it to the base, leaving it well fixed.
- We put another nail at the other end of the strip and put the spring there.
- At the bottom of the spring we put the plastic plate that will serve us to put the objects that we are going to measure and with the help of the piece of thin rope we hold it.
- On the wooden strip we place graph paper and where the plate is we put the 0
- Once the dynamometer is made, we will have to calibrate it starting from where we have placed the 0, taking an object of 5 grams of mass and marking it up to where the plastic plate moved.
- We will repeat this operation with different objects of various weights to be able to make several marks on our graph paper.
- This scale will depend a lot on the weights and the type of spring that we have used to build the dynamometer.
The built dynamometer is based on Hook’s law to be able to measure the forces since the weight is a force. This law says that our dynamometer will stretch as a consequence of the weight applied to it and the elasticity capacity of the spring used for construction and the acceleration will be based on the force of gravity, so the force is the product of the mass times the acceleration (gravity in our case) experienced by a body.