1043 results about "RF connector" patented technology

An electronic device may be mounted to a main body of a removable case. The case includes a cover that rotates between open and closed positions. The device may convey wireless data and / or a control signal with the removable case over radio-frequency connectors, near-field communications (NFC) coils, connector electrodes, and / or wired data connectors. The removable case may relay the wireless data between the electronic device and a communications satellite in space. The case may include a phased antenna array in the cover. In the open position, the cover may point the phased antenna array towards the sky. The removable case may include beamforming circuitry in the cover and coupled to the phased antenna array. The control signal may control the beamforming circuitry to produce, using the phased antenna array, a signal beam oriented towards the communications satellite.

The invention is applicable to the technical field of microwave plasmas, and provides a normal-pressure microwave plasma jet device which comprises an outer conductor, an inner conductor coaxially arranged in the outer conductor, a nozzle in threaded connection with the bottom end of the outer conductor, a pin at the end of a radio frequency connector connected with the inner conductor through a connecting conductor, and a gas pipe joint in threaded connection with the outer conductor. The short-circuit plug screw is in threaded connection with the top end of the outer conductor, a short-circuit reflecting surface is arranged at the bottom of a connecting piece installed in the short-circuit plug screw, and the air guide ring is nested on the inner conductor and located between the radio-frequency connector and the air pipe joint; the scheme is simple, reliable and low in cost, stable normal-pressure microwave plasma jet can be obtained without configuring a complex control module to adjust the impedance matching degree of the system, the gas flowing state can be more stable, plasma at an outlet is prevented from being affected, the short-circuit reflecting surface is further designed to be in a threaded up-and-down adjusting mode, and the service life of the system is prolonged. And the impedance matching effect is achieved by finely adjusting the short-circuit reflecting surface.

The invention provides an identification detection method and system for a radio frequency connector, and the method comprises the steps: obtaining the initial appearance image data of the surface of the radio frequency connector, and carrying out the processing of the image data, and obtaining a first appearance image; extracting an appearance feature set and an identification area image from the first appearance image; performing character segmentation and feature extraction on the identification area image, obtaining a preliminary manufacturing information text in combination with a pre-established text recognition model, verifying the preliminary manufacturing information text and associating the preliminary manufacturing information text with the appearance feature set to generate an associated data set; comparing the appearance feature set with a preset standard appearance database to generate defect marking data, fusing the associated data set with the defect marking data to generate comprehensive analysis data, and generating a visual chart according to the comprehensive analysis data; and further analyzing performance index change and defect severity according to the visual chart, generating risk assessment data, and generating a final detection analysis file according to the risk assessment data.

The invention provides a microwave program-controlled step attenuator. The microwave program-controlled step attenuator comprises a plurality of stages of step length switching units, the stepping length switching unit comprises a straight-through sheet which is fixedly arranged, at least two attenuation sheets which are arranged above the straight-through sheet at intervals, and a group of movable contact springs which are respectively positioned at two ends of the attenuation sheets; each movable contact spring is connected with a push rod which moves along the axis of the push rod and is used for driving the movable contact spring so that the inner end of the movable contact spring can make contact with the attenuation piece or the straight-through piece. The outer end of the movable contact spring is rotatably connected with one end of the fixed contact spring which is fixedly arranged through a rotating column, and the push rod is rotatably arranged around the rotating column corresponding to the movable contact spring connected with the push rod and used for driving the movable contact spring to rotate so that the inner end of the movable contact spring can be switched to correspond to different attenuation slices; and the other end of the fixed reed is rotationally connected with the outer end of the movable reed of the adjacent step length switching unit through a rotating column, or is vertically connected with the radio frequency connector. According to the scheme, multi-step length switching can be achieved, and good stability can be kept on the basis of achieving switching.

The present application discloses a floating radio frequency connector, comprising a fixed outer conductor, a floating outer conductor, an insulating inner core, and a conductive terminal, wherein the fixed outer conductor, the floating outer conductor, and the insulating inner core are coaxially arranged and form a floating central axis, the insulating inner core is arranged inside the floating outer conductor, the conductive terminal is inserted into and fixed inside the insulating inner core along the floating central axis, a lower end of the floating outer conductor is arranged inside the fixed outer conductor, the lower end of the floating outer conductor can swing around the floating central axis as a swing center, and the lower end of the floating outer conductor constantly abuts against the fixed outer conductor.

A vertically-polarized omnidirectional antenna, including: a body including: a host printed circuit board (PCB) including: first and second slots, and a metal flooded ground plane, first and second antenna PCBs forming four dipole pairs, the first and second antenna PCBs mounted to the host PCB, respective first to third ground connection fillet tabs, the first and second tabs being on an opposite side of the host PCB from the third tab, the first to third tabs being on a same side of its antenna PCB, an amplitude taper on each antenna PCB at transitions between the host and antenna PCBs, including: a first transmission line splitting off into a second transmission line and a third transmission line, the second transmission line feeding two antennas to form one dipole pair, the third transmission line stepping down using a quarter-wave transformer, and a radio frequency (RF) connector to receive a power supply.

The invention relates to the field of information investigation and electronic countermeasure, in particular to a multi-element antenna array and a related system.The antenna array comprises a plurality of antenna array elements, a polygonal cylinder base, an antenna cover and a fixed bottom plate, and the input ends of the antenna array elements are connected with a radio frequency connector; the related system comprises an antenna array, a power supply and communication control module and a radio frequency module. The antenna array is used for solving the technical problems that an existing antenna array is narrow in frequency domain coverage, not wide enough in space domain coverage, large in weight and size and not integrated with the ultra-wideband azimuth direction finding function and the electronic interference function. According to the antenna array, the frequency coverage is 2-18 GHz, the airspace coverage is 360 degrees, the lightweight design is realized, and the antenna array integrates the functions of omnibearing direction finding and electronic interference; spatial multipath investigation signals are received to carry out combined amplitude comparison direction finding, characteristics and threat levels of the investigation signals are calculated and confirmed through an algorithm, and then investigation tracking and electronic interference tasks are carried out on a threat target in a specified direction according to the orientation of the threat target.

The present invention discloses a general-purpose low-profile active array antenna system, which includes an antenna module, a multi-functional structural frame, a power divider module, a beam control module, a radio frequency connector, and a low-frequency connector. The multi-functional structural frame includes at least two cavities, and the partition between the two cavities includes a plurality of radio frequency connection holes and a plurality of low-frequency connection holes. The antenna module is connected to one of the cavities, the power divider module and the beam control module are connected to the other cavity. The radio frequency connector is located in the radio frequency connection hole, and the radio frequency connector connects the antenna module and the power divider module. The low-frequency connector is located in the low-frequency connection hole, and the low-frequency connector connects the antenna module and the beam control module. The beneficial effects of the present invention are as follows: the system composition is simplified, which is beneficial to the generalization, serialization, and standardization design of modules, and is more conducive to the realization of low-cost design of active array antennas.

The invention provides a wide-axial-ratio circularly polarized antenna, and relates to the technical field of antennas, and the antenna comprises a dielectric substrate, and the edge of the dielectric substrate is uniformly provided with metalized via holes; the radiation patch covers the upper surface of the dielectric substrate, and a first circular gap is formed in the middle of the radiation patch; the feed network is located on the lower surface of the dielectric substrate; the metal cover comprises a metal back cavity, the metal cover covers the bottom of the feed network and the bottom of the dielectric substrate, and the feed network is located in the metal back cavity; the radio frequency connector passes through the dielectric substrate and the radiation patch and is welded on the upper surface of the radiation patch; one end of the coaxial cable is connected to the lower end of the radio frequency connector, and the other end of the coaxial cable penetrates through the metal back cavity and is connected with the metal cover; the invention is used for solving the technical problems of low gain, narrow axial ratio beam width, complex design and manufacture and overlarge antenna size of the existing circularly polarized antenna.

The utility model discloses a radio frequency probe double-needle card with a limit structure, which belongs to the technical field of chip testing and comprises an elastic needle tip (1), a microwave absorber (2), a fixing support (3) and a radio frequency connector assembly (4), the radio frequency connector assembly (4) comprises a connector portion and a cable portion, the elastic needle tip (1) is arranged at the tail end of the cable portion, and the microwave absorber (2) is arranged on the fixing support (3). The fixing support (3) is provided with two spacing grooves (5) which are arranged at an interval, and the cable part is arranged in the spacing grooves (5). According to the utility model, the test problem caused by the fact that a conventional probe cannot meet the requirement of a relatively wide chip pressure welding point under a special test condition in the prior art can be solved, the flexibility of chip design is improved, and the design constraint caused by insufficient test flexibility of the probe is broken through.

The utility model relates to the technical field of radio frequency connectors, in particular to a radio frequency connector convenient to install, which comprises a connector male head and a connector female head, the left end of the connector male head is provided with a male head thread end, the right side wall of the connector male head is provided with a slot, the outer wall of the right end of the connector male head is provided with a positioning groove, and the right end of the connector male head is provided with a male head thread end. The connector female head is located on the right side of the connector male head, a female head threaded end is arranged at the right end of the connector female head, and a positioning column is integrally formed on the outer wall of the middle of the connector female head. According to the utility model, the fixing structure is arranged, the friction ring can drive the L-shaped clamping block to move in the movable groove, and the L-shaped clamping block can be inserted in the clamping groove, so that the L-shaped clamping block is blocked at a position close to the tail end in the positioning groove, the positioning column can be limited, and the connector female head can be stably inserted in the slot. Therefore, stable connection between the connector male head and the connector female head is ensured.

The invention provides a floating radio frequency connector and an elastic body thereof, and belongs to the technical field of coaxial connectors. The floating radio frequency connector comprises a fixed outer conductor, a floating outer conductor, a floating insulator and a floating inner conductor, the floating inner conductor comprises a contact body and an elastic body, the contact body is fixedly installed in the floating insulator, the elastic body comprises a welding foot part and a deformation part, at least part of the deformation part is of a spiral structure, and the welding foot part is located at one axial end of the deformation part. The contact body is located at the end, axially away from the welding foot part, of the deformation part, and the contact body and the elastic body are of a split structure or an integrated structure. The elastic body of the floating radio frequency connector comprises the elastic body. According to the invention, the deformation part of the floating inner conductor is designed into a spiral structure, so that the elastic deformation capability of the deformation part in each direction is enhanced, and the problems of fatigue fracture and connection failure of a welding pin and a substrate are avoided.

A power supply noise test system is used for detecting power supply noise of a product with a radio frequency antenna and comprises a first antenna, the first antenna is arranged in the product to be tested and integrated on a circuit board of the product to be tested, a radio frequency connector is arranged on the circuit board, and the first antenna is connected with the radio frequency connector; the second antenna is located outside a shell of a product to be tested, the second antenna is connected with the radio frequency connector through a radio frequency test line, and both the first antenna and the second antenna are radio frequency antennas; a near-field probe; the power supply noise test analysis unit comprises a low noise amplifier, an attenuator and a spectrum analyzer which are connected in sequence; the radio frequency test line and the near-field probe are connected with the low-noise amplifier through feeder lines. According to the invention, different antennas can be utilized to detect local or external power supply noise in a product and power supply noise in a radio frequency band and a full frequency band, and the detection precision and sensitivity are improved.

A radio frequency (RF) cluster port having a port body including a number of apertures, each configured to hold a corresponding one of a number of RF ports, each RF port having an RF port conductor combination. The port body may include a number of dual-hook structures, each dual hook structure having a upper first hook and a lower second hook, wherein the upper first hook is configured to have a first pressure applied to it by a bearing pin of a cluster connector when the cluster connector engages the number of RF port conductor combinations to a corresponding number of RF connector conductor combinations, and wherein the lower second hook is configured to have a second pressure applied to it by the bearing pin of the cluster connector when the cluster connector disengages the number of RF port conductor combinations from the corresponding number of RF connector conductor combinations.

The invention discloses a radio frequency connector and a connector combination. The radio frequency connector comprises an insulating base and at least one central conductor assembly. The center conductor assembly includes an inner conductor, an insulating support, an inner shielding ring, and an outer conductor. The inner shielding ring is arranged on the outer peripheral surface of the insulating support member. The outer conductor surrounds the insulating support member, and an annular insertion space is formed between the outer conductor and the inner shielding ring and is used for inserting an outer shielding shell of a butt joint conductor assembly of a butt joint connector into the annular insertion space. The radio-frequency connector and the connector combination are particularly suitable for transmission of high-frequency signals, and the transmission frequency can reach 20 GHz.

A radio frequency applicator, including a waveguide having a first interior surface comprising a first aperture, a second interior surface opposing the first interior surface, a third interior surface adjacent to the first and second interior surfaces, a fourth interior surface opposing the third interior surface, and a fifth interior surface perpendicular to the first, second, third, and fourth interior surfaces, an aperture antenna, a solid dielectric insert within the waveguide, the solid dielectric insert having a second aperture formed therethrough that is configured for alignment with the first aperture, an RF connector, configured to receive generated RF energy pulses, at least one planar-shaped shim, having a third aperture therethrough configured to align with the first and second apertures, and a radio frequency feed pin connected to the RF connector, disposed within the first, second, and third apertures and affixed to the second interior surface of the waveguide.

The invention provides a palladium-based radio frequency probe and a preparation method thereof, and the method comprises the steps: (1) drying and uniformly mixing palladium powder, silver powder, copper powder and other metal mixed powder to obtain a premix; (2) smelting, forging, rolling and quenching the premix in sequence to obtain a palladium-based sheet material; (3) carrying out laser cutting and polishing on the palladium substrate material to obtain a needle tip elastic assembly; and (4) connecting the needle tip elastic assembly to one end of the probe main body, connecting the radio frequency connector to the other end of the probe main body, and then placing the radio frequency connector into the inclined insertion through hole of the probe support to obtain the palladium-based radio frequency probe. According to the scheme, the palladium-based radio frequency probe is high in precision, high in universality, low in cost and easy to maintain.

The invention discloses a welding tool and a welding method for a multi-element surface-mounted radio frequency connector, the welding tool comprises a base, a cover plate and a mother board, the base is provided with a first limiting frame and a second limiting frame, the first limiting frame is used for placing the mother board, and the second limiting frame is used for placing the cover plate; positioning holes are formed in the cover plate, the number of the positioning holes is the same as that of the radio frequency connectors, and the positioning holes are used for limiting movement of the connector shells; a plurality of positioning columns are arranged on the cover plate and used for limiting movement of the connector surface mounting needle, each positioning hole corresponds to two positioning columns, and every two adjacent positioning columns are located on the two sides of the corresponding positioning hole; the ventilation holes of the base are formed in the side surface and the bottom surface of the base; the cover plate is provided with ventilation holes, and the ventilation holes of the cover plate are located on the periphery of the positioning hole. The temperature uniformity and the welding quality in the welding process of the multi-element surface-mounted radio frequency connector can be improved, the problems that the surface-mounted radio frequency connector is low in welding precision and poor in consistency are solved, and the manual welding production efficiency is effectively improved.

The invention discloses a DC-110 GHz broadband microwave transmission system, and belongs to the technical field of microwaves. According to the microwave transmission system disclosed by the invention, the structure size design is carried out on the lap joint of the transmission reed and the conductor in the middle radio frequency connector, and a width-narrowing step change mode is used, so that the impedance of the transmission line is matched, and the transmission frequency of the microwave transmission system can reach up to 110GHz; according to the invention, the size of the limiting column on the cover plate is matched with the size of the limiting hole in the medium seat, so that the transmission reed does not rotate in the movement process, friction redundant materials can be effectively prevented from entering the microwave cavity through the mode, and the repeatability of the switch is improved; the microwave transmission system is applied to the single-pole double-throw coaxial switch, the transmission frequency of the microwave transmission system can reach 110 GHz, the transmission frequency of an existing single-pole double-throw coaxial switch is greatly improved to 110 GHz from 67 GHz, and the requirement for high-frequency signal transmission is met.

The utility model discloses a novel radio frequency connector pin local plating device which comprises an electroplating box, a liquid inlet pipe is installed below one side of the electroplating box, a liquid discharge pipe is installed below the other side of the electroplating box, an electroplating jig is arranged above the interior of the electroplating box, and a bearing assembly is arranged at the bottom end of the electroplating jig. Through the arrangement of the bearing assembly, in the using process, a worker can install a contact pin in an electroplating jig, then the electroplating jig is placed on a conductive plate, the conductive plate conducts electricity on the electroplating jig, and after placement is completed, the conductive plate, a guide rod and a movable plate are driven to move downwards through the self weight of the electroplating jig and the contact pin; and in the moving process, the reset spring is stretched, the bottom end of the electroplating jig can move to the liquid level of the electroplating liquid through downward movement, and at the moment, the part, exceeding the electroplating jig, of the contact pin is located in the electroplating liquid, so that local electroplating of the contact pin is achieved, and use is convenient.

The utility model discloses a double-locking radio frequency connector, comprising a radio frequency connector body, a plug-in sleeve being provided at the bottom and a plug-in connector being provided at the top; a plug-in cavity being provided in the plug-in sleeve, a butt-joint tube being provided in the plug-in cavity, a first thread being provided on the inner wall of the plug-in cavity, a sliding groove being provided on the plug-in sleeve, an auxiliary positioning groove being provided inside the sliding groove, a buckle assembly being provided in the sliding groove; a second thread being provided on the plug-in connector, and a sealing seat being provided; the buckle assembly comprising a movable ring, a T-shaped sliding block being provided on the inner wall of the movable ring, and a clamping tooth being provided at the bottom of the movable ring; a clamping groove being provided on the sealing seat; the utility model realizes double locking through the cooperation of threaded connection and the buckle assembly; the cooperation of the sealing seat and the clamping tooth ensures good sealing performance of the connector; the design of the sliding groove and the movable ring makes the installation and disassembly of the buckle assembly easier; the design of the buffer arc surface can effectively buffer the movement of the clamping tooth.

A RF connector includes a first conductor and a symmetrical second conductor. Each conductor has an elongated structure of a flat conductive material with a length corresponding to ¼ of a nominal frequency of a signal to be coupled and is connected at a first end to a coaxial connector and at a second end to the housing. The RF connector can be switched between an ON state and an OFF state. In the OFF state, the first conductor is distant from the second conductor and in the ON state the first conductor is in close contact with the second conductor such that open sides of their respective housings are oriented against each other, and the conductors are facing each other.

The utility model discloses a radio frequency connector and a connector combination. The radio frequency connector comprises an insulating base and at least one central conductor assembly. The center conductor assembly includes an inner conductor, an insulating support, an inner shielding ring, and an outer conductor. The inner shielding ring is arranged on the outer peripheral surface of the insulating support member. The outer conductor surrounds the insulating support member, and an annular insertion space is formed between the outer conductor and the inner shielding ring and is used for inserting an outer shielding shell of a butt joint conductor assembly of a butt joint connector into the annular insertion space. The radio-frequency connector and the connector combination are especially suitable for transmission of high-frequency signals, and the transmission frequency can reach 20GHz.

The invention relates to the technical field of photoelectric detection, and particularly discloses a miniaturized photoelectric detector, which comprises a tube shell, one end of the tube shell is provided with a cover plate, and the other end of the tube shell is provided with a radio frequency connector and a pin in a penetrating manner; the photoelectric conversion assembly comprises a first substrate, a second substrate, a photodiode and a transimpedance amplifier which are arranged in the tube shell, the radio frequency connector and the transimpedance amplifier are both electrically connected with the first substrate, the photodiode and the pins are both electrically connected with the second substrate, and the second substrate and the photodiode are both electrically connected with the transimpedance amplifier; the shielding cover is arranged in the tube shell and is arranged outside the radio frequency connector in a surrounding manner; wherein an optical fiber assembly and a lens assembly are arranged on the outer side and the inner side of the cover plate respectively, a through hole is formed in the cover plate, and the optical fiber assembly, the through hole, the lens assembly and the photodiode are located on the same straight line. The system is compact in structure, beneficial to system integration, high in anti-interference capability, high in stability and high in reliability.

The utility model discloses a multi-frequency multi-port non-electrically tunable shaped antenna, comprising a reflecting plate and radiation units, the longitudinal direction of the reflecting plate is sequentially provided with a middle-broadband radio frequency unit installation area and a high-frequency radio frequency unit installation area, and the radiation units comprise a plurality of first radiation units and a plurality of second radiation units. The plurality of first radiation units are arranged in the medium-broadband radio frequency unit installation area side by side, the plurality of second radiation units are arranged in the high-frequency radio frequency unit installation area side by side, each second radiation unit comprises a plurality of second radiation subunits, and the plurality of second radiation subunits of each second radiation unit are arranged in an area array. And each second radiation unit is also in coupled connection with a filtering characteristic feed network board and a corresponding radio frequency connector, wherein the filtering characteristic feed network board is arranged on the other side, deviating from the second radiation unit, of the reflecting plate. According to the invention, it is preferentially ensured that the antenna is specifically suitable for venues, the antenna efficiency is high, and the antenna has higher performance and higher commercial value.

A horizontally-polarized omnidirectional antenna, including: a body including: a host printed circuit board (PCB) including: a metal-flooded ground plane, windows, and an interconnect providing a radio frequency (RF) signal splitting off into 2*Z0 transmission lines, a plurality of antenna elements, corresponding to respective windows, including: an antenna PCB including an antenna slot having a pullback region with the host PCB therein without directly contacting the pullback region, the window in the antenna slot, loops of conducting strips at top and bottom sides of the antenna PCB, slightly overlapping to form capacitive elements at overlap regions, a pair of input solder joints at respective input conducting strips on the top of the antenna PCB, on opposite sides of the window, a transmission feed solder joint directly between the pair of input solder joints across the window, connected to a Z0 feed line, and an RF connector receiving an antenna power supply.

The utility model discloses an inter-board welding-free radio frequency connector structure, which is characterized in that fuzz buttons are arranged in an inner conductor of a connector to serve as elastic contact pieces, so that the end face contact of the connector is of a welding-free structure, and signal conduction between the connector and a printed board is realized through external force pressing. The grounding ring is arranged between the outer conductor and the shell, and compared with a traditional mode that the shell is provided with an elastic contact piece to achieve grounding of the outer conductor, the structure saves cost, reduces assembling difficulty, and improves shielding effect at the same time. The connector structure can meet the requirements of miniaturization, low height and no welding of the whole machine, and is accurate in insertion, simple in processing and assembling, and convenient in operation.

The invention discloses a packaging structure of a microwave photon transceiving integrated device, which comprises a tube shell, the tube shell comprises a cavity, a driving circuit board is arranged in the cavity, the driving circuit board is respectively connected with a light receiving unit, a light emitting unit and a radio frequency microwave circuit, the light receiving unit is connected with the light emitting unit through the radio frequency microwave circuit, and the light receiving unit is connected with the light emitting unit through the radio frequency microwave circuit. The bottom of the cavity is connected with the fuzz button, the fuzz button is connected with the radio frequency microwave circuit, the light receiving unit and the light emitting unit are integrated in one cavity, receiving and emitting of microwave signals are integrated in one cavity, the integration level is improved, the fuzz button with the smaller size is used for replacing an SSMP radio frequency connector, and the cost is reduced. The size of the whole device is reduced, the size of the microwave photonic device is reduced, and the problems that receiving and transmitting of microwave signals are achieved based on discrete devices, the integration level is low, external interfaces all adopt SSMP radio frequency connectors or glass sintering terminals, and the size of the microwave photonic device is large are solved.

The utility model relates to the technical field of electronic equipment, and discloses a radio frequency VPX board card module, which comprises a VPX backboard and a shell, the shell is used for installing the VPX backboard, the shell is formed by connecting an upper shell and a lower shell through screws, the VPX backboard is provided with a VPX connector and a radio frequency connector, the VPX connector is connected with the radio frequency connector through a radio frequency cable, and the VPX connector is connected with the radio frequency connector through a radio frequency cable. A cable containing groove is formed in the upper shell, a separation window is formed in the groove bottom of the cable containing groove, the radio frequency connector is clamped in the separation window, and a cover plate is detachably installed on the upper shell. The beneficial effects of the utility model are that the separation window is designed on the upper shell, so that after the VPX backboard is assembled on the upper shell, the radio frequency connector on the VPX backboard can be exposed, the cable and the VPX backboard are not contacted and prevented from being scratched, and under the structural design, the cable is in a visual state after being laid, maintenance during debugging is facilitated, and the service life of the VPX backboard is prolonged. And the reliability and the maintainability of the whole VPX module structure are improved.

A piezoelectric sensor provided by the present application comprises a fixed seat, a piezoelectric assembly, a pressure head, a conductive assembly and a coaxial radio frequency connector, the fixed seat is internally provided with a first installation space and a second installation space which are communicated with each other, the piezoelectric assembly is arranged in the first installation space, one end of the pressure head abuts against the piezoelectric assembly, the conductive assembly is arranged in the second installation space, and the coaxial radio frequency connector is arranged in the second installation space. One end of the coaxial radio frequency connector is electrically connected with the other end of the conductive assembly. The piezoelectric assembly comprises a plurality of piezoelectric elements and at least one electrode slice, the electrode slice is arranged between at least any two adjacent piezoelectric elements in the axial direction to form a laminated structure, and the polarities of the opposite side surfaces of the two adjacent piezoelectric elements are the same. According to the piezoelectric sensor provided by the invention, charges generated by the plurality of piezoelectric elements are accumulated together, so that the sensitivity of the piezoelectric sensor is improved, the use requirements of the piezoelectric sensor on high-precision measurement and small signal detection are met, and the probability that mechanical stress is concentrated on a single piezoelectric element can also be reduced.