Sensor actuator ports are added to the joint. Body replaces fixed rigid bodies among which the degrees of freedom are added. Joint actuator actuates a joint permitive with generalized force, torque or linear, angular position, velocity, and acceleration motion signals. Joint sensor measures linear, angular position, velocity, acceleration, computed force, torque of the joint primitive. Body sensor measures the motion of the body coordinate system to which the sensor is connected.
Force sensors were attached to the cords or the model's hand, to measure the amount of force applied during the activities. Any recorded data was exported to a computer for analysis. In activity 1, the shoulder was locked at 0°. A cord was attached to the standard biceps insertion point and threaded through the pulleys to simulate the biceps. A force sensor was attached to the free end of the cord, and another was attached to the model's hand.
Newton’s Second Law also contributes to the physics of roller coasters. Newton’s Second Law is, “The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.” (Physicsclassroom.com) What this means is that the acceleration produced on a body by a force is proportional to the magnitude of the force and inversely proportional to the mass of the object. Since it is an unbalanced force, it is able to change the roller coaster 's motion and pull it. When the force is exerted on the roller coaster, the cart moves uphill, in the direction of the force. Newton 's Second Law also says that force times mass equals
The springs have mass but we neglect that mass in this practical. Mass must vibrates vertically in this practical. Sometimes mass vibrated horizontally because that springs didn't connected properly to mass. Possible remedies We can use following ways to correct this practical errors Scale reading is important to draw graph. So we have to measure accurate reading by using a computer based measuring scales.
Procedure : In this test method, the ultrasonic pulse is produced by the transducer which is held in contact with one surface of the concrete member under test. After traversing a known path length Q in the concrete, the pulse of vibrations is converted into an electrical signal by the second transducer held in contact with other surface of the concrete member and an electronic 2 timing circuit enables the transit time (T) of the pulse to be measured. The pulse velocity (V) is given by : V = L/T 8.3.2 Ultrasonic Pulse Velocity Method This method involves the measurement of velocity of electrostatic pulses passing through concrete from a transmitting transducer to a receiving transducer. The pulse also can be generated by hammer blow. The pulse generator circuit consists of electronic circuit for generating pulses and a transducer for transmitting these electronic pulses into mechanical energy having frequency 15 to 50 kHz.
Engineers came up with idea of using different types of fluids that can change its property according to the external forces. For example MR (Magneto-Rheological) fluids and ER (Electro-Rheological) fluids. MR fluids are materials that expose a change in rheological properties such as elasticity, viscosity or plasticity with the application of a magnetic field. On the other hand, ER fluids alters its rheological property when an electric field is applied to the fluid. MR fluids require small voltages and current, while ER fluids require very large voltage and very small currents.
The results also probably show that the smaller batteries had to use more force than the big batteries. An extraneous variable could have been that the tape making the poles and needle stay together got loose. Another extraneous variable is that the tape might not have been securely holding the needle and the top and bottom of the battery. The location of where the experiment was done could have made the results change. One of the observations was the C-Battery didn 't want to go at first but then started going fast.
The mechanical vibrations transmitted through a medium; solid, liquid or a gas generates a sound wave. The sound is an energy, which deflects the particles of a medium in the same direction, and itself travel as a longitudinal waveform with areas of compression and rarefactions. The image generated by ultrasound is essentially based on similar principle by means of a machine, which includes an ultrasound transducer and a screen. The transducer contains a piezoelectric crystal made up of lead zirconite, which generates an ultrasound beam on applying an electrical current to the transducer. These signals travel through a medium in the body and after striking with various tissues, return back to the transducer.
The outcomes of tensile tests are used in selecting materials for engineering applications. Tensile properties are frequently included in material specifications to ensure quality. Tensile properties are often measured during development of new materials and processes. Therefore, different materials and processes can be compared. Finally, tensile properties are often used to predict the behavior of a material under forms of loading other than uniaxial tension.
A solenoid is just a coil of wire, but when you run a current through it, you create an electromagnet. Electromagnets are particularly useful because, unlike regular magnets, they can be switched on and off, and strengthened by increasing the current flowing through them. When you run a current through a solenoid, you get a supper strong magnet because the magnetic field is concentrated inside the coil. Electromagnetic solenoids find uses all over the world. They’re in hotel door locks, water-pressure valves, MRI machines, hard disk drives, speakers, cars, and