Tip 1: How to determine the torque

torque time is one of the main characteristics of the force.To define it, you need to know the force acting on a body, its point of application to the body and the point of rotation of the body.Torque time can be measured by knowing the power that the engine develops.
you need
  • - ruler or measuring tape;
  • - stopwatch;
  • - tachometer;
  • - dynamometer;
  • - ammeter.
Guide
1
Find the point of application of force and the point of the turning body.Measure the distance between them.This will force the shoulder.Determine the direction of the force at the point of application, using a dynamometer to measure its value.Using a protractor or goniometer, get the acute angle between the line on which the shoulder of the force and power.
2
Find a twisting moment , multiplying the value of the force on her shoulder and sinus acute angle between them (M = F • l • sin (α)).If time force perpendicular to her shoulder that sin (α) = 1, and under these conditions, developing maximum time .When the location of the shoulder and force along a single line, sin (α) = 0, and the time force is also zero.
3
engine performing work develops torque moment, which is the algebraic sum of many time s forces acting on different parts of the engine.Therefore, the easiest option - to find a twisting moment of the technical documentation that came with your device.
4
If such information is not available, using a tachometer to measure the engine speed in revolutions per minute.Engine power measure or read the documentation, expressing it in kilowatts.Find the value of the twisting moment and by multiplying the engine power to the 9550 and dividing by the frequency of rotation M = P • 9550 / n.
5
To calculate the torque time frame with the current in the magnetic field, which is the basis of any motor teslametrom measure the induction of the magnetic field in which it is located.Measure the distance from the axis of rotation to the vertical wire frame - it will arm the force.Measure the length of the vertical conductors.
6
Connect frame to a current source, an ammeter to measure the current in it.The maximum twisting moment for such a frame is found by multiplying the number 2 (because it is two vertical wires) to the value of the magnetic induction, the current strength, the vertical length of the conductor and the shoulder strength M = 2 • B • I • l • r.To find time torque motor, multiply this value by the number of winding turns.

Tip 2: How to find the torque

To find a twisting moment force using a dynamometer to measure the force itself, and its shoulder.They multiply and get the value of torque.If you know the force developed by the spinning mechanism, the torque can be found, knowing his speed.It is also possible to find the torque by measuring the work done by the motor.
How to find the torque
you need
  • To measure need a stopwatch, ruler or tape measure, load cell, a tachometer, ammeter.
Guide
1
sily.Krutyaschy torque moment is measured on a rotating body.To do this, identify the point of rotation and the point of application of force, having between them a straight line.Measure the acute angle between this line and the direction (vector) force.The torque is equal to the product of the force, which is measured using a dynamometer in Newton, at a distance to the point of rotation (shoulder) and the acute angle between the shoulder and the force vector (M = F • l • sin (α)).
maximum torque is reached in the case where the force is perpendicular to the shoulder, and if the force is parallel to (coincides with the line of the shoulder), the moment of force will be zero.
2
torque depending on moschnosti.Dvigatel issuing torque, has a certain power rating that can be found in the technical documentation or measure.In order to find its torque via a tachometer to measure the rotation frequency of its shaft in rpm.Engine power in kilowatts measure.To obtain the torque value of the power multiply by 9550 and divide it by the speed of the shaft.The result is the torque in Newton per meter.
3
Torque elektrodvigatelya.Samy simple electric motor - frame of current-carrying conductor in a magnetic field.Place the frame in a known magnetic field induction.Connect it to a source of electric current with an ammeter to measure the current in the frame.A ruler, measure the arm of the force from the rotation axis to the vertical guide frame, as well as the vertical length of the conductors themselves.Then the maximum torque is the product of the magnetic induction on the strength of the current, the length of the vertical guide and the shoulder of the force.The result of multiply by 2 (M = 2 • B • I • l • r).Such torque will develop if the shoulder is perpendicular to the direction of force of the electromagnetic field.
Sources:
  • find a point on the shaft
Sources:
  • how to calculate the torque

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