19 results about "Transducing Unit" patented technology

The application relates to the technical field of semiconductors, in particular to a surface acoustic wave resonator and a surface acoustic wave filter, wherein the surface acoustic wave resonator comprises a piezoelectric layer, the surface of the piezoelectric layer is provided with an active transducing unit and a reflecting unit; two first bus bars are arranged at intervals on the active transducing unit, and two second bus bars are arranged at intervals on the reflecting unit; a first interval region formed by the projection of the two first bus bars along a first direction covers a second interval region formed by the projection of the two second bus bars along the first direction, and the length of the first interval region along a second direction is greater than the length of the second interval region along the second direction, so that the winding distance of the first bus bar when connected with an external circuit is reduced, the space occupation is reduced, the resonator layout is more compact, and the core demand of high-density integration of devices in the semiconductor field is met.

This invention discloses a welding torch nozzle device with self-powered and self-diagnostic functions, including a nozzle body, a thermoelectric conversion unit, an impedance sensing unit, and a signal processing unit. The signal processing unit is electrically connected to both the impedance sensing unit and the thermoelectric conversion unit, and the thermoelectric conversion unit supplies power to the signal processing unit. The signal processing unit receives impedance change signals from the impedance sensing unit and determines whether the nozzle is clogged. By placing the thermoelectric conversion unit on the outer wall of the nozzle body to recover welding waste heat and convert it into electrical energy, and placing the impedance sensing unit on the inner wall of the nozzle body to directly detect impedance changes caused by spatter adhesion, combined with the signal processing unit, in-situ real-time monitoring under self-powered conditions is achieved, forming a nozzle structure that integrates power supply and sensing. This eliminates the dependence on external power sources and complex wiring, improves the reliability and adaptability of the system in harsh welding environments, and significantly enhances the stability of the welding process and the quality of the weld.

This imaging element comprises: a first substrate that has a first photoelectric conversion unit which converts light into electric charge and which is formed of a first inorganic semiconductor material; and a second substrate that is laminated together with the first substrate and has a second photoelectric conversion unit which is formed of a second inorganic semiconductor material different from the first inorganic semiconductor material and which converts, into electric charge, light that has passed through the first photoelectric conversion unit.

To improve a frame rate of an imaging element.SOLUTION: The imaging element includes a first photoelectric conversion unit, a second photoelectric conversion unit, a first signal line to which a first signal based on a charge generated by the first photoelectric conversion unit is output, and a second signal line to which a second signal based on a charge generated by the second photoelectric conversion unit is output, the signal processing device includes a first A / D conversion unit that converts an input first signal from an analog signal to a digital signal, a second A / D conversion unit that is connected to a second signal line and converts an input second signal from an analog signal to a digital signal, and a first switch that switches between connection and disconnection of a first portion of the first signal line between a first position where the first photoelectric conversion unit and the first signal line are connected and the first A / D conversion unit and a second portion of the first signal line between a second position where the second photoelectric conversion unit and the second signal line are connected and the second A / D conversion unit.SELECTED DRAWING: Figure 5

The utility model discloses a displacement amplification mechanism for improving the resolution and measurement precision of a displacement sensor, and relates to the technical field of measurement. Comprising a main body, a sliding rod and an electromechanical conversion unit, and the electromechanical conversion unit comprises a fixed part and a sliding part which are in sliding fit; the electromechanical conversion unit is arranged in the body, one end of the sliding rod is inserted in the body in a sliding mode and fixedly connected with a sliding part in the electromechanical conversion unit, and the other end of the sliding rod extends out of the end of the body. The gear carrier is mounted at the end of the main body; a change gear set is mounted at one end, far away from the main body, of the gear carrier; the sliding sleeve sleeves the outer side of the gear frame and is in sliding fit with the outer wall of the gear frame, and a second rack is fixedly arranged on the inner wall of the sliding sleeve; a large gear and a small gear in the change gear set are meshed with the first rack and the second rack respectively. According to the utility model, the displacement input by the sliding sleeve can be amplified, after the displacement is amplified, the resolution of the electromechanical conversion unit is increased in equal proportion, and the measurement precision of the displacement sensor is correspondingly improved.

The present application relates to a kind of aerosol sensor detection system and detection device, detection system includes power supply conversion unit, controller unit, aerosol detection unit, data interface unit and abnormal state monitoring unit.Detection device includes main shell, PCB support, PCB board and bottom shell.The detection system of the present application can ensure that the light source intensity emitted by infrared LED light emitting tube is consistent each time by using closed-loop control of hardware and software, effectively improve the accuracy of detection system.The detection device of the present application increases lens in front of photoelectric tube, gathers the scattered light source, thereby preliminarily improves the signal level of photoelectric tube, and can improve the resolution of sensor to some extent.

The invention provides a photoelectric conversion module for monitoring equipment, which comprises a photoelectric conversion unit, a protocol processing unit and a power supply unit, and is characterized in that the photoelectric conversion unit is used for receiving an optical signal transmitted by an optical fiber and converting the optical signal into an electric signal; the protocol processing unit is coupled with the photoelectric conversion unit and is used for processing the electric signal and packaging the electric signal into a data frame which can be identified by monitoring equipment; the power supply unit is used for receiving electric power from the outside and providing a power supply for monitoring equipment, and the photoelectric conversion unit, the protocol processing unit and the power supply unit are integrated on the same circuit board to form an integrated function module which is directly connected with the monitoring equipment through a standard interface. The technical problems of complex wiring, high cost and poor reliability caused by separation of a power line and a network line in traditional monitoring deployment are solved, the deployment process is simplified, the number of external connection nodes and cables is reduced, the system reliability is improved, and a hardware basis is provided for realizing plug-and-play and efficient centralized management of monitoring equipment.

The invention discloses a cochlea nerve sound information transmission device and method based on double coaxial focused ultrasound nonlinear demodulation. The device comprises a double coaxial ultrasonic transducer, a focusing unit, a signal driving module and a control and safety module. The double coaxial ultrasonic transducer is provided with an inner transduction unit and an outer transduction unit which are used for transmitting ultrasonic waves with different carrier frequencies respectively; the focusing unit enables the two paths of ultrasonic waves to coincide in a cochlear nerve or related auditory nerve area space to form a focusing superposition sound field, a difference frequency component is generated after nonlinear action of human tissue, and localized transmission of audio information in a mode of generating only in a target area is achieved, and sound leakage in a non-target area is restrained. According to the method, complementary coding envelope, difference frequency verification closed loop and predistortion compensation are further introduced, the forming efficiency and consistency of effective audio envelope in a target region are improved, local mechanical vibration / pressure fluctuation caused by target region difference frequency directly acts on a mechanical sensitive ion channel of an auditory nerve related cell membrane, neuron excitation is promoted, and nerve response is opened.

The invention relates to the technical field of isotope batteries and discloses a preparation method of a transduction unit and a preparation method of an isotope battery, and the preparation method of the transduction unit comprises the following steps: S1, carrying out pretreatment on a to-be-treated surface of a substrate to obtain a pretreatment surface with a preset surface shape; s2, preparing a sacrificial layer on the pretreatment surface to obtain a sacrificial layer with a preset shape; s3, preparing the transduction unit on the surface of the sacrificial layer; and S4, treating the sacrificial layer by using a sacrificial liquid so as to remove the sacrificial layer, and stripping the transduction unit. According to the preparation method of the transduction unit, the technical problem that the transduction unit is not damaged in the preparation process can be solved, the transduction unit of a three-dimensional structure can be obtained by preparing the transduction unit through the preparation method of the transduction unit, and the quality of the transduction unit can also be improved.

The application discloses a wireless flexible cortex brain-computer interface device based on ultrasonic energy supply and a signal acquisition method thereof. The device comprises an extracorporeal ultrasonic transceiving unit and a passive flexible intracorporeal implant unit. The intracorporeal implant unit comprises a flexible substrate, a recording electrode unit arranged on the side of the flexible substrate facing the cerebral cortex, and a piezoelectric transducing unit and a load modulation unit arranged on the back side or lateral area of the flexible substrate. The piezoelectric transducing unit receives extracorporeal ultrasonic waves and converts them into electric energy. The load modulation unit adjusts the port load impedance of the piezoelectric transducing unit in a continuous analog mode according to the cortical electrophysiological signals collected by the recording electrode unit, thereby modulating ultrasonic backscattering echoes. The extracorporeal ultrasonic transceiving unit receives and demodulates the backscattering echoes to reconstruct the cortical electroencephalogram signals. The application can realize wireless acquisition of the cortical electroencephalogram signals without the need of intracorporeal batteries and transcutaneous leads, and improve long-term implant stability in a flexible cortex attachment state.

The invention provides a function-configurable flexible sensor and a preparation method thereof, and belongs to the technical field of wearable flexible sensors. The sensor adopts the design of combining a single force-electricity conversion unit and a replaceable functional patch, and temperature change, humidity fluctuation and Hconcentration change are firstly converted into measurable mechanical deformation by utilizing the specific response of sensitive materials (such as temperature-sensitive / humidity-sensitive hydrogel and hydrogen-sensitive palladium-based materials) in different functional patches to specific physical stimulation; the deformation is then converted into an electric signal through a unified force-electricity conversion mechanism to be output, so that multi-parameter sensing is achieved in a simple system, and selective sensing of different parameters such as temperature, humidity and hydrogen (H) concentration can be achieved only by replacing patches. The sensor designed by the invention avoids the complexity of traditional array integration, and has the advantages of unified architecture, configurable functions, low preparation cost, high adaptability and the like.

This photoelectric conversion system comprises: a photoelectric conversion unit in which a plurality of cells are disposed, each of the cells being provided with a capacitor; and a scanner that irradiates the photoelectric conversion unit with light while moving the irradiation position.

The invention discloses a treatment head and a treatment instrument, and relates to the technical field of ultrasonic treatment, the treatment head comprises a treatment head body, a transduction unit and a transmission assembly, the treatment head body comprises a water storage bin, the transduction unit is arranged in the water storage bin, and at least part of the transmission assembly is arranged in the water storage bin. An external driving part is in driving connection with the transmission assembly, the transmission assembly is further in transmission connection with the transduction unit, the transmission assembly is configured to be capable of driving the transduction unit to move spirally, and the driving part is in driving connection with the transmission assembly and used for driving the transmission assembly to drive the transduction unit to move spirally. The motion trail of the transduction unit in the treatment head is the spiral trail, the spiral trail is wide in coverage range compared with a linear motion trail and has no focusing repetition point compared with a #-shaped motion trail, the time needed by the transduction unit to complete one stroke is short, and therefore the purpose of rapid and uniform treatment can be achieved.

The utility model discloses an ultrasonic beauty instrument, which comprises a shell, an ultrasonic transducer and a driving control circuit, and is characterized in that the shell is provided with a functional surface for skin-attached output, and the functional surface is provided with an ultrasonic output window; the ultrasonic transducer is arranged in the shell, the ultrasonic transducer comprises a plurality of sound making units arranged towards the ultrasonic output window, and each sound making unit comprises one or more ultrasonic transduction units; the plurality of sound making units are arranged according to a preset setting mode; the ultrasonic transduction unit is used for generating ultrasonic energy which is emitted into the skin through the ultrasonic output window; and the driving control circuit is electrically connected with the ultrasonic transducer to control each sound generating unit to generate ultrasonic energy according to a preset sequence so as to realize ultrasonic scanning dotting beauty treatment. According to the technical scheme, the size and energy consumption of the ultrasonic beauty instrument are reduced, noise and vibration of the ultrasonic beauty instrument during working are reduced, and the service life of the ultrasonic beauty instrument is prolonged.

The invention relates to the field of ultrasonic sensors, and discloses a processing method of an ultrasonic fingerprint module, the module and electronic equipment. The processing method of the ultrasonic fingerprint module comprises the following steps: arranging an acoustic-electric conversion unit on a first surface of a substrate; determining the acoustic impedance of the metal layer according to the acoustic-electric conversion unit and the acoustic impedance of the corresponding display screen; a metal layer is arranged on the second surface of the substrate in an electroplating or sputtering mode, and the thickness of the metal layer is determined according to material acoustic impedance; wherein the first surface and the second surface are opposite surfaces of the substrate; the surface of the metal layer away from the substrate is used for installing a display module. Through the mode, the arrangement of one adhesive layer is reduced, so that the overall structure of the ultrasonic fingerprint module is thinner, the attenuation effect on an ultrasonic signal is reduced, and the quality of a fingerprint image is improved. Meanwhile, the metal layer is directly formed on the substrate, the stability is higher, and damage is not prone to occurring.

A magnetic sensor comprises a die pad, a first and second magnetoelectric conversion units, and a signal processing unit which processes signals output from the first and second magnetoelectric conversion unit. The die pad includes a first frame portion including a fifth and sixth frame portions, a second frame portion including a seventh and eighth frame portions, a third frame portion, a fourth frame portion, and a coupling portion. At least one of the third, fifth, or seventh frame portions has a first gap which reaches to a first space portion surrounded by the coupling portion, and the third, fifth, and seventh frame portions from an outer edge, and at least one of the fourth, sixth, or eighth frame portions has a second gap which reaches to a second space portion surrounded by the coupling portion, and the fourth, sixth, and eighth frame portions from an outer edge.

To provide a photoelectric conversion device capable of accurately removing noise.SOLUTION: A first scanning circuit that scans a plurality of pixels in a first mode in which an analog signal at a reset level and a first type of analog signal corresponding to signal charges of both the first photoelectric conversion unit and the second photoelectric conversion unit are output, and a second mode in which an analog signal corresponding to signal charges of the first photoelectric conversion unit is output in addition to the reset level and the first type of analog signal; A first AD conversion period related to an analog signal of a reset level in the first mode is included. In the case of transition from the second mode to the first mode, the second scanning circuit performs the additional signal transfer operation so that the number of times of the first signal transfer operation between the first AD conversion period and the AD conversion period immediately before the first AD conversion period is equal to the number of times of the second signal transfer operation between the first AD conversion period and the AD conversion period next to the first AD conversion period.SELECTED DRAWING: Figure 7

The application discloses a bone conduction sound transmission device, comprising: a laminated structure formed by a vibration unit and an acoustic transducing unit; a base structure configured to carry the laminated structure, at least one side of the laminated structure being connected to the base structure in a physical manner; the base structure generates vibration based on an external vibration signal, the vibration unit deforms in response to the vibration of the base structure; and the acoustic transducing unit generates an electric signal based on the deformation of the vibration unit.