Electromagnetic vibration system and method
View Patent ↗A system for testing a device comprises a stator, an armature, a power input, a sensor, and a processing element. The stator includes stator coils, and the armature is movably coupled to the stator. The armature supports the device and comprises rotor coils. The power input is configured to couple with a power supply to provide power to the stator coils and/or the rotor coils. The sensor captures data associated with movement of the armature. The processing element activates the stator coils or the rotor coils to cause the armature to move along the stator to replicate a time domain waveform; receives signals representative of the data; compares the data to the time domain waveform to determine a difference between the two; and adjusts an amount of power provided to the stator coils or the rotor coils to minimize the difference.
1 . A system for shifting a device, the system comprising:
a stator with stator coils;
an armature movably coupled to the stator and configured to support the device and comprising rotor coils;
a power input for coupling with a power supply to provide power to at least one of the stator coils or the rotor coils;
a sensor configured to capture data associated with movement of the armature;
a processing element in communication with the sensor and configured to-
activate at least one of the stator coils or the rotor coils to cause the armature to move along the stator to replicate a predetermined time domain waveform,
receive from the sensor a signal representative of the data,
compare the data to the time domain waveform to determine a difference between the time domain waveform and the data, and
adjust an amount of power provided to at least one of the stator coils or the rotor coils to minimize the difference.
2 . The system of claim 1 , wherein the rotor coils comprise push rotor coils and pull rotor coils.
3 . The system of claim 1 , wherein the processing element is configured to activate the stator coils and the rotor coils as stacked coils.
4 . The system of claim 1 , wherein the stator comprises a titanium core and the stator coils encircle the titanium core.
5 . The system of claim 1 , wherein the power supply comprises-
a pulse-forming network, and
a supercapacitor connected to the pulse-forming network and configured to provide current to the pulse-forming network.
6 . The system of claim 1 , wherein the armature comprises an armature body made of carbon fiber.
7 . The system of claim 1 , wherein the power supply comprises a power source and a plurality of insulated gate bipolar transistors configured to connect the power source and the stator coils when directed by the processing element.
8 . The system of claim 7 , wherein the plurality of insulated gate bipolar transistors are configured to switch a polarity of at least one of the stator coils or the rotor coils, wherein the processing element is configured to direct the insulated gate bipolar transistors to switch the polarity of at least one of the stator coils or the rotor coils to apply a force in an opposite direction of a motion of the armature.
9 . The system of claim 1 , wherein the stator forms a closed loop path.
10 . The system of claim 1 , wherein the time domain waveform comprises at least one of a pulse shock or a vibration.
11 . A method of inducing a resonant frequency in a structure, the method comprising:
accelerating an armature along a stator to induce a vibration in the structure;
capturing, via a sensor, data representative of a frequency of the structure when the armature is moving along the stator;
determining the resonant frequency of the structure based on the data; and
accelerating the armature along the stator to induce a vibration at the resonant frequency in the structure.
12 . The method of claim 11 , wherein the stator forms a linear path.
13 . The method of claim 11 , wherein accelerating the armature along the stator includes directing a power supply comprising a pulse-forming network with a supercapacitor to selectively activate one or more stator coils.
14 . The method of claim 11 , wherein the stator forms a circular path.
15 . A system for inducing a resonant frequency in a structure, the system comprising:
a stator with stator coils;
an armature movably coupled to the stator and comprising rotor coils;
a power input for coupling with a power supply to provide power to at least one of the stator coils or the rotor coils;
a sensor configured to detect vibrations of the structure;
a processing element in communication with the sensor and configured to-
activate at least one of the stator coils or the rotor coils to cause the armature to move to induce a vibration in the structure,
receive from the sensor a signal representative of data comprising a frequency of vibrations of the structure,
determine the resonant frequency of the structure based on the data, and
direct the power supply to activate at least one of the stator coils or the rotor coils to induce a vibration in the structure at the resonant frequency of the structure.
16 . The system of claim 15 , wherein the stator forms a linear track, and the rotor coils comprise push coils and pull coils.
17 . The system of claim 15 , wherein the stator comprises a titanium core and the stator coils encircle the titanium core.
18 . The system of claim 15 , wherein the processing element is configured to activate the stator coils and the rotor coils as stacked coils.
19 . The system of claim 15 , wherein the power supply comprises-
a pulse-forming network, and
a super capacitor connected to the pulse-forming network and configured to provide current to the pulse-forming network.
20 . The system of claim 15 , wherein the power supply comprises a power source and a plurality of insulated gate bipolar transistors configured to connect the power source and the stator coils when directed by the processing element.