Levers belong to a class of devices known as simple machines, which also includes gears, pulleys, inclined planes, wedges and screws. (The word "machine" itself comes from a Greek word that means "help make easier.") All simple machines share one trait: They multiply...
The fact that one gear is spinning twice as fast as the other is because of the ratio between the gears — the gear ratio. In this figure, the diameter of the gear on the left is twice that of the gear on the right. The gear ratio is therefore 2:1 (pronounced "two to one"). ...
The problem with this type of gear is that the distance from the center of each gear to the point of contact changes as the gears rotate. This means that the gear ratio changes as the gear turns, meaning that the output speed also changes. If you used a gear like this in your car,...
The gear’s angular velocity ratio gives the input to output ratio. You can easily calculate the final drive ratio directly from the number of teeth on the crown wheel and pinion. The manufacturers define the final drive ratio and mechanical ratio in such a way that it results in a number ...
Volume control on top, Circuit Board inside, tubes on bottom: V1 Preamp Tube on right, V2 Power Tube in center, V3 Rectifier Tube on left. The Power Transformer and Output Transformer are attached to the other side of the chassis.
This is defined as the amount of energy that an energy storage medium can store per kilogram of energy storage medium mass. In other words: Energy density/energy to weight ratio is the amount of energy that an energy storage system can store per kg of batteries, capacitors, or other energy...
We developed a dynamic model of the system to calculate the parameters shown in Fig. 2F that minimize the damage upon impact during the perching maneuver, described in Supplementary Method 2 and 4. The dynamic model estimates the motion of the system and the stresses in the joints for a give...
Servo motor or simply servo is a special type of motor which is designed for precise control over position, acceleration and velocity. Unlike all other types motor, servo can only rotate 180 degree bi-directional. It has mechanical gears and stopper which limit the angular rotatory of servo. ...
Explain briefly how the photoelectric effect is used in the operation of an electric eye. What is optical fiber? Briefly describe how they are used. How does a relay switch work? How does a tuning fork work? How can you use mechanical advantage and velocity ratio to determine the efficiency...
The mechanical advantage of the machine tells how efficiently the machine is able to work according to the work supplied to it and it is equal to the ratio of the force produced by the machine to the input force supplied to the machine....