411 results about "Electrical probe" patented technology

An optical-signal vestibular-nerve stimulation device and method that provides different nerve stimulation signals to a plurality of different vestibular nerves, including at least some of the three semicircular canal nerves and the two otolith organ nerves. In some embodiments, balance conditions of the person are sensed by the implanted device, and based on the sensed balance conditions, varying infrared (IR) nerve-stimulation signals are sent to a plurality of the different vestibular nerves.

The anti-flashover ring of the present invention includes a substantially cylindrical body having an outer surface with a plurality of passageways thereon. Each of the passageways pass from one of the sidewalls through the body to the other of the sidewalls of the ring. The passageways function to provide fluid communication between the atmosphere surrounding an accessory product such as a bushing insert and the interior of a connector mounted thereon when the connector is being pulled off the bushing insert. The fluid communication prevents a vacuum from forming between the connector and the bushing insert that can lead to a flashover between an electrical probe in the connector and a ground shield of the bushing insert. The anti-flashover ring is also configured to provide an indication to the operator installing the connector of when the connector is fully installed on the bushing insert. Such indication is provided by providing the ring with a width that is equal to length of the lip of the connector when the connector is fully installed. As such, the operator installing the connector continues to push on the connector until the end of the lip aligns with the end of the ring.

A method for fabricating an electrical test apparatus electrical probe tip first provides a probe tip substrate having a topographic surface. A high density plasma chemical vapor deposition (HDP-CVD) deposited mandrel layer is then formed upon the topographic surface. It has a series of pointed tips formed over a series of topographic features within the topographic surface. Finally, a conductor probe tip layer is formed conformally upon the high density plasma chemical vapor deposition (HDP-CVD) deposited mandrel layer and replicating the series of pointed tips. Due to the series of pointed tips and the series of replicated pointed tips, a microelectronic fabrication when tested with the electrical test apparatus electrical probe tip is tested with enhanced accuracy.

Described here are systems, devices, and methods for implanting a nasal stimulator into nasal tissue and electrically stimulating nasal tissue. In some variations, a nasal microstimulator implantation system may comprise an implantation tool and an implantable microstimulator. An implantation tool may comprise a shaft and features to releasably attach a microstimulator. A microstimulator may comprise a passive stimulation circuit and one or more electrodes. In other variations, a nasal implantation system may additionally comprise one or more additional devices, such as a controller, an electrical probe, and/or a dissection tool.

A method of screening EEPROMs for data retention quality employs a UV source which is arranged to be impinged upon the devices while in wafer form, at or near an electrical probe station. Known data is stored in memory cells on an EEPROM chip while the chip is in wafer form, at a probe station. The wafer is then moved beneath a UV silo near the probe station and exposed to UV light, for a period of time and at an intensity which is sufficient to cause leakage of charge from potentially leaky floating gates. The wafer is again subjected to electrical probe where the amount of change in retained charge is detected. From this test, an indication of the charge retention ability of the devices is obtained. The UV light increases the energy state of the stored charge thus accelerating the decay of the stored charge located on the floating gates in the EEPROM device. Bits that have inherent leakage paths decay more rapidly.

A radar level gauge (RLG) is provided for determining a filling level of a filling material contained in a container by transmitting and receiving elliptically or circularly polarized waves. The RLG comprises: a feeding circuitry for feeding and receiving two essentially orthogonal elliptically polarized waveguide modes, one of the modes for transmission and another mode for reception; an antenna for transmitting the waveguide modes towards the filling material and for receiving reflected signals; and a waveguide to provide signals between said feeding circuitry and the antenna. Further, the feeding circuitry comprises: a microwave generating unit (TX); a microwave receiving unit (RX); at least three feeding probes being at least partly exposed to the interior of the waveguide; and a coupling circuitry for transferring and feeding signals between each feeding probe and the microwave generating unit and/or the microwave receiving unit. At least the coupling circuitry and the feeding probes are implemented on a common printed circuit board (PCB), and the printed circuit board is arranged transversely over the waveguide.

Methods are provided for making vertical feed through electrical connection structures in a substrate or tile. The vertical feed throughs are configured to make the tile attachable and detachable as a layer between other substrates. For example, the tile with vertical feedthroughs can form an easily detachable space transformer tile in a wafer test system. The vertical feed through paths are formed with one end of each feed through hole permanently encapsulating a first electrical contact, and a second end supporting another pluggable and unpluggable electrical probe contact. Decoupling capacitors can be further plugged into holes formed in close proximity to the vertical feed through holes to increase performance of the decoupling capacitor.

The invention discloses a low-profile omni-directional left-right-handed circularly polarized reconfigurable antenna which comprises a dielectric substrate, a circular radiation patch, N double-arc-arm radiation patches and 2N radio-frequency switch diodes, N+1 patch inductors, N bonding pads, a circular grounding plate, N short circuit columns, a coaxial feed probe and a direct-current power supply, wherein a circular seam is formed in the circular grounding plate and is divided into an inner patch and an outer patch; the upper surface circular radiation patch is connected with the N double-arc-shaped arm radiation patches through the 2N radio frequency switch diodes which are biased in opposite directions; one end of the direct-current power supply is connected with the N bonding pads onthe upper surface of the dielectric substrate, and the other end of the direct-current power supply is connected with the inner patch; and three short-circuit columns are arranged at equal intervalson the equiangular line of the double-arc-shaped arm patch and connected with the circular radiation patch, the medium substrate and the circular grounding plate. The reconfigurable antenna in the invention has the advantages of good omni-directional circularly polarized radiation performance, capability of realizing omni-directional left-right-handed circular polarization switching, low loss, lowprofile, easiness to machine and low cost.

A ceramic armor system with built-in conductive circuit attached to a ceramic component. The conductive circuit can be accessed by a user at contacts provided in the system. The circuit is arranged so that damage such as cracks that occurs within the ceramic component can propagate into the conductive material forming the circuit and thereby cause a rupture in the conductive circuit. An electrical probe such as an ohmmeter is used to measure the conductive circuit resistance that is then checked against an expected value. The results are used to determine if the ceramic armor component is in operable condition.

The invention relates to a low-profile low-cross-polarization dual-polarized broadband antenna comprising a resonant cavity, an upper microstrip board, a lower microstrip board, four feed probes and a coaxial medium. A rectangular upper-layer copper foil paster is arranged at the middle of the top surface of the upper microstrip board; and a rectangular lower-layer copper foil paster is arranged at the middle of the bottom surface of the lower microstrip board. The four feed probes distributed in the resonant cavity uniformly enable the upper-layer copper foil paster to be transited to the bottom of the resonant cavity vertically in a feed mode and, together with the coaxial medium, form a coaxial radio-frequency connection port. And a 45-degree angle is formed between each side of the upper-layer copper foil paster and each side of the resonant cavity. The profile height of the dual-polarized broadband antenna is 0.1-0.15 lambda0, wherein the lambda0 expresses a free space wavelength of a central frequency point. Therefore, the antenna unit performance can be improved obviously and thus the work bandwidh reaches 60%. More than two low-profile low-cross-polarization dual-polarized broadband antennas are connected in parallel to form a low-profile low-cross-polarization dual-polarized broadband antenna array.

This invention relates to a ring satellite navigation antenna for increasing low elevation gain including: a microwave base board, a ring sheet antenna, four short circuit pins, a hollow metal short circuit column, a quartering power divider and four feed probes, in which, the microwave base board includes a first surface and a second surface, the ring sheet antenna is positioned on the first surface of the base board, the four short circuit pins are placed on the edges of the internal ring of the antenna symmetrically to pass through the base board and connect the antenna with the second surface of the board, the four feed pins are placed on the feeding positions symmetrically with the top contacting to the antenna and the bottom is connected with the four output ends of the quartering power divider, which works at 1.559GHz/1.575GHz suitable for the navigation terminals of GPS/GALLEO/BD2 systems.

The invention relates to a hearing aid system with an electrical feedback cancellation path, for compensating acoustic feedback between an output transducer and an input transducer by subtracting an estimate of the acoustical feedback from a signal on the input side of the amplifier part, the electrical feedback cancellation path comprising an adaptive filter for providing a variable filtering function. The invention further relates to a method of compensating acoustic feedback in a hearing aid system and to its use. The object of the present invention is to provide an alternative scheme for estimating the acoustical/mechanical feedback in a hearing aid. The problem is solved in that the hearing aid system comprises a second electrical input signal consisting essentially of the direct part of said first electrical input signal (i.e. without acoustic feedback), and wherein the second electrical input signal is used to influence, preferably enhance, the filtering function of the adaptive filter of the feedback cancellation path. Preferably, the system comprises a second input transducer for generating the second electrical input signal, the second input transducer being spatially located at a position where the amplitude of the acoustical signal from the output transducer at a given frequency is smaller than at the location of the first input transducer, and wherein the electrical signal of the second input transducer is used to adapt the filtering function of the adaptive filter. Preferably, the signal path comprises a generator of an electrical probe signal for use in characterizing the feedback path. The invention may e.g. be used in binaural hearing aid systems or in connection with other electronic devices comprising a second electrical input signal, e.g. generated by a microphone separately located from a first microphone of the hearing aid.

The invention provides an efficient microstrip antenna based on a non-periodic artificial magnetic conductor structure. The efficient microstrip antenna is composed of medium substrates which are laminated in a two-layer mode, and comprises a patch antenna, a metal floor, an artificial magnetic conductor reflection plate and coaxial feed probes. The patch antenna is printed at the upper surface of an upper-layer medium substrate, the metal floor is printed at the lower surface of a lower-layer medium substrate, the artificial magnetic conductor reflection plate is printed at the upper surface of the lower-layer mediums substrate, the coaxial feed probes are inserted into the artificial magnetic conductor reflection plate and the upper-layer medium substrate from the lower surface of the lower-layer medium substrate, and the two coaxial feed probes are connected with the patch antenna; the artificial magnetic conductor reflection plate is segmented into multiple independent artificial magnetic conductor units arranged in a matrix, and each artificial magnetic conductor unit is a rectangular metal patch; and the artificial magnetic conductor units arranged in a matrix are arranged to be symmetrical about an axis between two middlemost rows, each row of artificial magnetic conductor units have the same dimensions, and the dimensions of the artificial magnetic conductor units in different rows cannot be completely the same.

An electrical test probe comprises a probe tip portion and a probe main body portion having a pedestal portion on which the probe tip portion is formed to be protruded. The probe main body portion is made of a conductive material that is greater in toughness than the probe tip portion, and the probe tip portion is made of a conductive material that is higher in hardness than the material of the probe main body portion. On the pedestal portion is provided a probe tip reinforcement portion that contacts at least one side surface of the probe tip portion, extends toward a tip of the probe tip portion, and permits the tip of the probe tip portion to be protruded from its extending end in the extending direction. Also, the probe tip portion may be in a multi-layer structure having a first metal material layer that is higher in hardness than the tough metal material forming the probe main body portion and a second metal material layer that is greater in toughness than the first metal material layer.

The invention relates to a device (1) for detecting a level (3) of media (4), preferably in a tank (2, 200), having an elongated electrical probe conductor (6) extending substantially vertically into the tank (2, 200) and mountable such that said conductor is electrically insulated therefrom, a time-variable electric generator (7) having an internal impedance (Zg) for connection to a feed point (11) of the probe conductor (6), in order to apply a time-variable voltage thereto, wherein the feed point (11) is arranged at one end of the probe conductor (6), in particular at the tank end thereof, and an evaluating and/or control unit (9) for evaluating an electrical variable of the probe conductor (6). In order to enable such a device to detect a level of any medium, in particular liquid, paste-like and/or granulated solid media, in a manner as simple, fault-tolerant and cost-effective as possible, according to the invention the evaluating and/or control unit (9) is designed to measure a foot point impedance of the probe conductor (6) at the feed point (11).

Disclosed is a novel electrical probe that stores probe-specific information. A probe implemented in accordance with the invention includes a processor, memory, and a communications interface. Probe-specific information such as a probe identifier and/or calibration parameters that affect the true value of a measurement are stored in the probe memory. The probe-specific information may be retrieved by the processor from the probe memory via the communications interface.

The invention discloses an FDD antenna based on a dual-mode resonator. The FDD antenna comprises a square patch with a square groove, a stacked parasitic square patch, a first short-circuit patch and a second short-circuit patch loaded on the inner edge of the square patch, an emission channel feed probe, a reception channel feed probe, a reflection floor, an emission port, a reception port, an emission channel feed network, and a reception channel feed network. The square patch is printed on the top surface of a middle medium substrate, the parasitic square patch is printed on the top surface of an upper medium substrate, the reflection floor is printed on the top surface of a lower medium substrate, and the emission channel feed network and the reception channel feed network are printed on the bottom surface of the lower medium substrate. Designed is the antenna serving as a feed network and having a frequency division duplex function through induction of a dual-mode resonator. The antenna enables emission and reception to be conducted at the same time, and electromagnetic waves for emission and reception by the antenna are linearly polarized electromagnetic waves.

A slider having bonding pads opposite an air bearing surface and a method for producing the same is disclosed. Bonding pads are formed on the side of a slider assembly opposite the air bearing surface (ABS) to allow electrical probing devices on the slider while applying pressure to the slider during the lapping process and to allow a flip chip bonding process of the slider to the suspension thereby reducing or eliminating the need to bend wires and attach to the end of the slider body.

The invention relates to an electromagnetic coupling feed navigation transmitting-receiving antenna of the 1st generation of Beidou satellite. The antenna comprises an upper dielectric plate, a lower dielectric plate, a disk-shaped coupling copper sheet and a cross-shaped coupling copper sheet, wherein the upper dielectric plate is arranged over the lower dielectric plate in parallel with the lower dielectric plate, an air layer is formed between the upper and the lower dielectric plates separately, the upper and lower surfaces of the upper dielectric plate are provided with an antenna radiation patch of the S frequency range and an antenna radiation patch of the L frequency range respectively, the lower surface of the lower dielectric plate is provided with a ground plate, the disk-shaped coupling copper sheet and the cross-shaped coupling copper sheet are arranged in the same height of the air layer and parallel with the upper dielectric player, the circular center of the disk-shaped coupling copper sheet is connected with a first feed probe, and one feed end of the cross-shaped coupling copper sheet is connected with a second feed probe. The antenna can realizes the positioning and short message communications of the first generation of Beidou satellite, has the advantages of low profile, high gain, low cost, wide broadband and allowable processing errors, and can be well applied to Beidou satellite terminal equipment.

A Micro-Electro-Mechanical-Systems (MEMS) probe is fabricated on a substrate for use in a probe card. The probe has a bonding surface to be attached to an application platform of the probe card. The bonding surface is formed on a plane perpendicular to a surface of the substrate. An undercut is formed beneath the probe for detachment of the probe from the substrate.