This causes the mass to deflect; the deflection is sensed by a suitable means and is converted into an equivalent electrical signal. B. Types of Accelerometer Sensors There are different types of accelerometers. Mechanical ones have something like a mass attached to a spring suspended inside an outer casing. When it is subjected to linear acceleration, the casing moves off immediately leaving behind the mass and spring stretches with a force that corresponds to the acceleration.
Galvanometer gives the deflection which is proportional to the electric current flowing through it. It works as an actuator by producing a rotary deflection. Also, known as a (pointer) in response to electric current flowing through a coil in a constant magnetic
Conclusion It is possible to convert a inadmissible path into admissible by changing the pattern parameters ZMP is practically demonstrated in WL-10RD family of robots. Since then it is used in anthropomorphic systems and its stability is studied from different prospective including mathematical. ZMP error in the trajectory generation can be reduce by an adjustment in the height of Center of Gravity. To change the height we change the parameters in the inverted pendulum mode. In case of un-nominal walk of the robot, effects of un-nominal motion can be studied by changing the hip parameters.
The mechanical systems can be modeled with a suite of tools to specify bodies and their mass properties, possible motions, kinematic constraints, and coordinate systems. To get the dynamic model of the robot the following blocks related to CAD model are used. Revolute joint represents one rotational degree of freedom. The follower body rotates relative to the base body about a single rotational axis going through collected body coordinate system origins. Sensor actuator ports are added to the joint.
¬¬¬¬¬¬Abstract Electrical circuits are described with mathematical expressions. Usually, it is possible to calculate the currents and voltages in a circuit by solving a set of equations, the calculations are required to design a safe circuit.and this is one reason why advanced mathematics is so important in the field of electrical engineering. The circuit equations can be determined using Ohm’s Law, which gives the relationship between voltage and current in a resistor (V=IR), and Kirchhoff’s Current and Voltage Laws, which govern the currents entering and exiting a circuit node and the sum of voltages around a circuit loop, respectively. Objective(s) The purpose of this experiment is to verify Ohm's Law using resistor in dc and ac circuits.
Does the type of battery used to create a motor affect the time the motor spins? If the type of battery affects the amount of time the coil spins then the D-battery powered electric motor will spin for the longest period of time. The procedures were to create the motor and find a spot for the motor to spin. You also needed to keep track of the time the motor spinned. When the motor stops spinning record the time on a data table.
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.
So in this case when a dc supply applies to it, the regulated DC voltage will switch the frequency oscillator ic and the MOSFET 's will function the push-pull amplification. This will use a transformer to produce the required power output. Therefore we can get a normal inverter DC/AC output. To make this output a pure sine wave, there is a filter circuit fixed at the output the AC terminal. Therefore it will filter the unnecessary frequencies, harmonics and will produce a constant pure sine wave.
Two main part of this system are a power driver and a piezoelectric transducer. The piezoelectric transducer generates mechanical energy in response to an applied electrical excitation. The ability of the transducer in energy conversion is reversible .it means the transducer can also
Frequency response including the open-loop transfer function (OLTFd), controller transfer function (Hdsf), and compensated loop transfer function (OLTFd+Hdsf). Fig.12. Single-phase equivalent circuit of SAF The current control scheme contains of three equal current loops, except for the 120 phase displacements from the references of each other. The current loops have a fast response to track the sinusoidal references, agreeing the decoupling analysis in relation to the voltage loop. The current loop transfer function is acquired through the analysis of the single-phase equivalent circuit shown in Fig.