25 results about "Electronic filter" patented technology

A water diverter device for use with a faucet including an electrically operable valve assembly and a control module for controlling the flow of cold water to a water filter.

The invention discloses a tumor detection device and method based on a diamond quantum sensor, and belongs to the technical field of biomedical detection. The device comprises an optical fiber laser, an optical fiber beam splitter, an optical fiber attenuator, an optical fiber circulator, an optical filter, two photoelectric detectors, a differential amplifier, an electronic filter, a computer, a signal generator, two microwave antennas and an optical fiber probe. The optical fiber probe comprises an optical fiber packaged in a plastic shell, a diamond quantum sensor which is fixed at the tail end of the optical fiber and comprises an NV color center, and a first microwave antenna integrated beside the optical fiber. The laser excites the diamond to generate fluorescence, meanwhile, the signal generator drives the two microwave antennas to apply a microwave field, and the dielectric property of the sample to be detected modulates the fluorescence intensity of the diamond by influencing the microwave field. Laser noise is eliminated through a differential amplification and filtering technology, and fluorescence signal change is analyzed by a computer, so that dielectric constant distribution of a sample is reconstructed, and non-invasive and high-sensitivity detection of tumors is realized.

Microacoustic metamaterial filters for use in electronic devices are provided. The filters include an acoustic metamaterial transmission line and two acoustic metamaterial reflectors. The filters do not employ resonators and can be easily fabricated. The center frequency of the filter passband, and filter bandwidth is not limited by material properties. The filters can be very small, because stopbands are used to attain large out of band rejection without requiring more filter stages. The filters can be used for 5G or 6G wireless communications, and for other types of electronic filters.

An electronic filter is adapted for having a rolling material containing a leaf product rolled onto an exterior surface of the electronic filter where the electronic filter includes a liquid to be aerosolized and mixed with a smoke from burning the leaf product. The electronic filter can be pre-rolled into a cigarette with a leaf product and ready for consumption in a single use or can be adapted for multiple uses. The electronic filter includes a cylindrical body including a mouthpiece portion and a rolling material attachment portion, where the mouthpiece portion includes a mouthpiece having an orifice leading into the cylindrical body, and where the rolling material attachment portion includes an exterior surface of the cylindrical body adapted to have a rolling material rolled onto and sealed against the exterior surface. The electronic filter also includes a battery, storage tank and auto draw device.

The utility model discloses an electronic filtering equipment. The electronic filtering equipment includes a cigarette holder, an oil cup pipe, a containing component and a shell. The oil cup pipe is connected with the cigarette holder, and an electronic atomization chamber is arranged in the oil cup pipe. The electronic atomization chamber is communicated with the cigarette holder, and the electronic atomization chamber is used for atomizing plant essential oil. The containing component is connected with the oil cup pipe, and a containing groove is arranged in the containing component. The containing groove is used for containing tobacco, and the containing groove is communicated with the electronic atomization chamber. The oil cup pipe and the containing component are arranged in the shell. In use, the electronic atomization chamber can atomize plant essential oil. The atomized aroma generated by the electronic atomization chamber can be mixed with tobacco smoke in the containing component and then enter the cigarette holder. When a user smokes, the user can experience the original taste of tobacco and the aroma of essential oil, thereby avoiding single use experience and increasing use experience diversity.

Sensor system (2) for environmental detection, comprising: - an optical device (7) for generating an optical carrier signal (8), - a transmitter (15) comprising several transmitter units, wherein the transmitter (15) is configured to transmit electrical output signals (45, 48, 52, 56), comprising: - a first transmission path (41) of the transmitter (15), which is configured to provide a first electrical output signal (45), based on the optical carrier signal (8), to a first transmitter unit (46) of the several transmitter units, which is arranged on the first transmission path (41), - at least a second transmission path (42) of the transmitter (15), different from the first transmission path (41), which is configured to generate a second electrical output signal (48), based on the optical carrier signal (8), and to a second transmitter unit (49) of the several transmitter units, which is arranged on the second transmission path (42) is ordered to provide,wherein: - a computing device (6) configured to generate several mutually frequency-shifted optical transmission signals (81) based on the optical carrier signal (8) and to provide them to the transmitting device (15); - a signal provisioning device (82) of the transmitting device (15) configured to generate the electrical output signals (45, 48, 52, 56) based on the optical transmission signals (81) and to assign the electrical output signals (45, 48, 52, 56) to the respective transmission path (41 to 44) based on their respective frequencies; - the transmitting device (15) configured to transmit the first electrical output signal (45) with the first transmitting unit (46) and the second electrical output signal (48) with the second transmitting unit (49) simultaneously in a transmission process, characterized in that - the signal provisioning device (82) includes an optical filter unit (92) exhibits which is trained,to filter the optical transmission signals (81) based on their respective frequencies, wherein the optical filter unit (92) is controllable by means of an electronic filter control unit (95), and the signal provisioning device (82) comprises an optical distributor (94) configured to provide the respective optical transmission signal (81) to the transmission paths (41 to 44), and each transmission path (41 to 44) comprises an opto-electrical converter unit (84, 86, 88, 90) configured to convert the optical transmission signals (81) provided by the optical distributor (94) into the electrical output signal (45, 48, 52, 56) associated with the transmission path (41 to 44).

The utility model relates to active power electronic filter and power electronic technical field discloses a kind of active power filter based on high-power IGBT single tube parallel driving, including multisignal fusion detection module, DSP control module, drive control module, IGBT power bridge arm module, auxiliary power module, support module and LCL filter module, the DSP control module is electrically connected with drive control module and support module respectively, the drive control module is electrically connected with IGBT power bridge arm module, the output end of switching power supply is electrically connected with the input end of multisignal fusion detection module, the IGBT power bridge arm module is electrically connected with LCL filter module.The utility model in, by adopting the design of IGBT single tube parallel, unnecessary intermediate connecting piece is reduced, equipment volume is effectively reduced, the problem such as the space occupancy big and installation inconvenience caused by complex structure is solved.

The application discloses a tumor detection device and method based on a diamond quantum sensor, and belongs to the technical field of biomedical detection. The device comprises a fiber laser, a fiber beam splitter, a fiber attenuator, a fiber ring, a filter, two photodetectors, a differential amplifier, an electronic filter, a computer, a signal generator, two microwave antennas and a fiber probe. The fiber probe comprises a fiber packaged in a plastic shell, a diamond quantum sensor containing NV color centers fixed at the end of the fiber, and a first microwave antenna integrated beside the fiber. The laser excites the diamond to generate fluorescence, and the signal generator drives the two microwave antennas to apply a microwave field. The dielectric properties of the sample to be measured will modulate the fluorescence intensity of the diamond by affecting the microwave field. The laser noise is eliminated through differential amplification and filtering technology, and the computer analyzes the fluorescence signal change to reconstruct the dielectric constant distribution of the sample, realizing non-invasive and high-sensitivity detection of tumors.

A programmable filter for electronic signals. The filter includes an input that splits power of the input signal along two paths, a first and second path that is phase shifted by ninety degrees in respect of the first path. The first and second path are each modulated to the optical domain, and provided as input to respective filter chains. The in-phase signal can be filtered by IIR or FIR optical filters with configurable operation, as well the shifted signal can be filtered by a second chain of IIR and FIR optical filters with configurable operation. Resulting output from each filter chain is recombined and demodulated from the optical domain. In this manner, the electronic filter can adopt any suitable impulse response, including impulse responses described with complex coefficients. Real parts can be configured by operation of the first filter chain and imaginary parts by operation of the second filter chain.

1. The name of the design product: electronic filter core. 2. The use of the design product: the design product is installed in an electronic filter to purify and de-dust air. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

An adaptive electronic filter (200) includes a memristor-based filter circuit (201) for filtering an electrical input signal to obtain a filtered electrical signal. The adaptive electronic filter (200) further includes: a memristor-based subtractor circuit (202) for obtaining an error signal based on the filtered electrical signal and a reference signal; and an error minimization circuit (203) configured to provide adapted filter coefficients of the memristor-based filter circuit based on the error signal to minimize the error signal.

The utility model discloses an intelligent formaldehyde removing instrument which comprises a machine body assembly, the machine body assembly comprises a machine body, the machine body is fixedly connected with a base, a set of air inlet holes are formed in the positions, corresponding to the base, of the four walls of the lower portion of the machine body, and the machine body is fixedly connected with a storage shell; the filter element assembly is arranged in the storage shell, the filter element assembly comprises an electronic filter element group and a high-activated carbon group which are arranged up and down, the storage shell is fixedly connected with a U-shaped plate, the high-activated carbon group is in contact with the U-shaped plate, the electronic filter element group comprises a filter frame, and an electronic filter element is mounted in the filter frame. The utility model relates to the technical field of air purification, in particular to an intelligent formaldehyde removal instrument. The technical problem to be solved by the utility model is to provide an intelligent formaldehyde removal instrument which is beneficial to formaldehyde removal, air odor purification and efficient dust removal.

An electronic filter for filtering multiple signals including a signal of interest and an other spectral content induces a desired frequency selective limiter response with activator signals. The activator signals have an approximately 180-degree phase difference and effectively cancel in a final combiner, leaving only the desired filter response.

An electronic filter is adapted for having a rolling material containing a leaf product rolled onto an exterior surface of the electronic filter where the electronic filter includes a liquid to be aerosolized and mixed with a smoke from burning the leaf product. The electronic filter can be pre-rolled into a cigarette with a leaf product and ready for consumption in a single use or can be adapted for multiple uses. The electronic filter includes a cylindrical body including a mouthpiece portion and a rolling material attachment portion, where the mouthpiece portion includes a mouthpiece having an orifice leading into the cylindrical body, and where the rolling material attachment portion includes an exterior surface of the cylindrical body adapted to have a rolling material rolled onto and sealed against the exterior surface. The electronic filter also includes a battery, storage tank and auto draw device.

The invention relates to an electron detector (22) for an electron microscope (10) which generates a primary electron beam (16) in order to illuminate a sample (18), said electron detector having a tubular portion (32) with an internal volume (34). The primary electron beam (16) can pass through the internal volume (34) in order to illuminate the sample (18). The electron detector (22) has a detector element (26) which is arranged outside the tubular portion (32) and which is designed to detect electrons which, coming from the sample (18), move in a second direction (42) counter to the direction of the primary electron beam (16). A filter grid (28) is arranged in front of the detector element (26) in the second direction (42), said filter grid extending in a third direction (60) which runs transversely to the beam direction of the electron beam (16). The electron detector (22) has an insulator (36) which electrically insulates the filter grid (28) and the tubular portion (32) from one another such that the filter grid (28) can be at a negative electrical potential relative to the housing (24). A plurality of electrodes (48, 50, 52) made of an electrically conductive material are arranged outside the tubular portion (32) and are designed to produce a predominantly homogeneous electric field (56) between the filter grid (28) and the detector element (26). The electric field (56) has equipotential lines (66) which run in the third direction (60), predominantly parallel to the filter grid (28). The electrodes (48, 50, 52) are also designed to distort the electric field (56) in the region of the insulator (36) in a targeted manner such that the equipotential lines (66) have an inhomogeneous, predominantly falling profile in a defined region (68) between the filter grid (28) and the detector element (26). The defined region (68) extends in the second direction (42) proceeding from the filter grid (28) and in the third direction (60) proceeding from the tubular portion (32).

The embodiment of the application provides a fresh air machine and an air purification method, the fresh air machine comprising: a shell, an electronic filter, a high-voltage generator, a first fan, an electrostatic adsorber and a second fan; the electronic filter comprises: a cylinder electrode and an ion generator located inside the cylinder electrode; the high-voltage generator is electrically connected with the ion generator; the shell is provided with an outdoor air inlet, an indoor air outlet and a first indoor air inlet; the outdoor air inlet is provided with a first air valve, and the first indoor air inlet is provided with a second air valve; in the embodiment of the application, air is purified through discharge of the ion generator, the cumulative filtering capacity of the fresh air machine is improved, and secondary pollution is avoided; meanwhile, by controlling the opening and closing of the first air valve and the second air valve, the discharge air purification can be applied to indoor and outdoor air exchange and indoor air circulation scenes, and the air purification effect of the fresh air machine is improved.

The invention discloses a laser velocity measurement-based optimal rod line stability control system and method. The system comprises a Doppler laser radar coherent velocimeter, a photoelectric detector, an electronic frequency domain filtering module, an advancing velocity analysis module, a control coefficient analysis module, a flying shear control system and a rolling mill control system. Through real-time dynamic adjustment of laser power and light spot diameter, real-time online calibration and control coefficient analysis, narrow-band optical and electronic filtering dual filtering, speed integration and correction, non-contact accurate speed measurement of high-temperature and high-speed bars and zero-tension synchronous closed cutting of continuous rolling flying shears are achieved, and the one-time yield is increased.

An electronic filter includes a ground plane and a top conductor overlying the ground plane. The top conductor includes an input and an output for receiving and outputting signals, respectively. The filter further includes a plurality of unit cells arranged in series along the top conductor. Each of the plurality of unit cells includes a planar structure disposed between the top conductor and the ground plane. Each of the plurality of unit cells further includes a pair of vias connecting the planar structure to the ground plane.

The utility model relates to an electronic filter circuit and an electronic device. The present description relates to an electronic filter circuit comprising: an integrated passive device; a bulk acoustic wave filter stacked on the integrated passive device on a first surface side of the integrated passive device; and at least one conductive post spanning the integrated passive device and connecting an electrode of the bulk acoustic wave filter to a contact element located on a second surface of the integrated passive device opposite the first surface and intended to be connected to an external element.

An electronic filter with passive and active filters installed in parallel on an electrical network. The passive filter attenuates an unwanted harmonic on the network. The active filter detects remaining unwanted harmonic and generates a sinusoidal signal introduced to the network to cancel remaining harmonic.

An electronic filter includes a ground plane and a top conductor overlying the ground plane. The top conductor includes an input and an output for receiving and outputting signals, respectively. The filter further includes a plurality of unit cells arranged in series along the top conductor. Each of the plurality of unit cells includes a planar structure disposed between the top conductor and the ground plane. Each of the plurality of unit cells further includes a pair of vias connecting the planar structure to the ground plane. The filter further includes at least one discrete reactive element connected to the top conductor and arranged in a series or a shunt configuration.

The utility model relates to air purification technical field, concretely is a kind of air purification device, including first electronic filter screen subassembly, the surface of first negative ion emission plate and second electronic filter screen body is provided with stable assembly mechanism, the surface of first electronic filter screen body and first support rod, second electronic filter screen body and second support rod is provided with convenient replacement mechanism, the surface of negative ion emission line and wiring port is provided with anti-folding line mechanism.The utility model not only makes air purification device when using can be used after the stable assembly between first electronic filter screen subassembly and second electronic filter screen subassembly, makes the overall stability of air purification device higher when using, makes the purification effect of air purification device to air can be guaranteed, and air purification device can be protected to the junction of negative ion emission line and wiring port, so that the service life of air purification device is longer.

The utility model relates to the technical field of electronic filters, in particular to a high-power filter suitable for low frequency, which comprises an input port, an output port and a filter circuit composed of a plurality of stages of LC resonant circuits. The filter circuit adopts specific inductance and capacitance elements to construct a multi-stage LC resonant circuit so as to accurately control the cut-off frequency, and a shell is made of high-performance plastic and is miniaturized through size optimization. The low-pass filter solves the problems of inaccurate cut-off frequency, large insertion loss, complex structure, large size and the like of the existing similar products, and can be widely applied to electronic equipment for communication, audio processing and the like.

1. The name of the design product: electronic filter. 2. The use of the design product: the design product is installed in a purifier for purifying and dedusting air. 3. The design points of the design product: in shape. 4. The picture or photo best indicating the design points: perspective view 1.

Battery-powered smart electronic Air Filter Module (AFM) adapted for retention in an orifice of a face mask and adapted to be positioned in front of the user's mouth for prevention of transmission to or from the wearer of harmful particulates, bacteria, and viruses with less impediment of the wearer's breathing or speaking, comprising: an electrostatic field (EF) generator, an electromagnetic field (EMF) generator under intelligent breath sensor control adjacent the EF generator and adapted for providing directional polarization to particles ionized by the EF generator, anterior and posterior porous frame portions retaining the EF generator, and an electronic microcontroller system operatively connected with, and adapted to selectively energize, the EF generator and the EMF generator.