105results about How to "Meet normal work needs" patented technology

The invention discloses a hand-eye vision calibration method for a robot hole boring system, and the hand-eye vision calibration method comprises the steps of firstly calibrating an origin point of a coordinate system of a tool on an end effector of the robot, that is TCP, establishing a scene coordinate system in a shot plane, then shooting two points in the plane, using the TCP to contact the two points, further obtaining the relationship between an imaging coordinate system of a camera and the scene coordinate system and utilizing the relationship to calculate the position relationship of the TCP in the scene coordinate system. Finally, the position relationship between the TCP and the imaging coordinate system of the camera, that is the hand-eye relationship, is indirectly obtained by taking the scene coordinate system as an intermediate conversion coordinate system. The hand-eye vision calibration method ignores depth information of the camera in the hand-eye relationship and transforms the calibration process into the geometric relationship, the calibration process is simple, the calculation amount is small, an expensive three-coordinate measuring device is unnecessary, and the precision is higher, thereby having higher practical value and being capable of meeting the practical working needs of the robot hole boring system.

The invention discloses a BIM technology-based project amount calculation method. The method comprises the following steps of receiving, checking and rechecking a drawing; establishing a BIM three-dimensional model according to the design drawing; carrying out dynamic management on the BIM three-dimensional model; carrying out collision inspection on the BIM three-dimensional model by combining the actual situation of the project; adjusting and modifying the BIM three-dimensional model according to the collision inspection result of the BIM three-dimensional model; customizing a calculation rule in the BIM three-dimensional model; and calculating and summarizing in the BIM software, and exporting a project amount list. By adopting the method, modeling can be completely carried out according to the actual condition of the building engineering, the actual condition of the building structure can be truly reflected, and the engineering quantity calculation accuracy is improved; a calculation rule is customized in BIM software, parameters of each dimension of the component are accurately calculated, and the quality of engineering quantity calculation is improved; the improvement of theengineering quantity calculation quality is of great significance to the result of the engineering cost, and the method has good social and economic benefits.

The invention relates to a power supply control system of an electric automobile. The system comprises a CAN transceiver, an MCU control chip, a monitoring interface and a power supply control circuit; the power supply control circuit comprises a storage battery, a first power supply source and a second power supply source; the first power supply source is used for converting the voltage of a storage battery into working voltage of the MCU control chip, the monitoring interface and the CAN transceiver to be outputted; when the electric automobile is off, the MCU control chip is awakened through external signals received by the monitoring interface and the CAN transceiver; the second power supply source is used for converting the voltage of the storage battery into working voltage to be outputted to a peripheral electrode when the MCU control chip is awakened. According to the power supply control system of the electric automobile, the first power supply source supplies power to some circuit when the automobile is in an off state, and the second power supply source supplies power to other circuits under the awakening state, so that the normal use of the electric automobile can be ensured, and the power consumption of the electric automobile under a non-working state can be greatly decreased.

The invention discloses a hanger shunting device for a clothing manufacture hanging system. The hanger shunting device solves the problem that in an existing clothing manufacture hanging system, someclothes need to travel on a ring rail for a long distance to reach a target working station, and therefore work efficiency of the clothing manufacture hanging system is relatively low. The hanger shunting device for the clothing manufacture hanging system is used for shunting between the opposite sides of the ring rail. An opening is formed in one side of the ring rail and a partition opening is formed in the other side of the ring rail. A shunting rod is connected with one side of the opening in a hinged mode, switching is carried out between the other side of the opening and the inlet end ofa first-stage falling rail under the ring rail in the vertical direction by the outer end of the shunting rod; a second-stage lifting device is used for lifting hangers which need to be shunted to the partition opening in the vertical direction, a connecting rod of the second-stage lifting device is used for being plugged into the partition opening, and enables the ring rail to form a passage atthe partition opening, and a shunting mechanism is arranged between the second-stage lifting device and the outlet end of the first-stage falling rail.

The invention relates to a severe infectious disease and mortality risk early warning system and method based on the virus detection rate. The severe infectious disease and mortality risk early warning system comprises a risk definition module, a risk element selection module, a risk network construction module, a risk evaluation prediction module and a graded early warning module. The severe infectious disease and mortality risk early warning system and method can effectively resolve the problems that an early warning mode based on infectious disease abnormal distribution judgment is inexact and not timely in judgment, prone to generating excessive early warning and the like and can be used for complementing and optimizing an infectious disease early-stage space-time early warning mode of a domestic infectious disease monitoring automatic early warning information platform.

The invention discloses an external thermal insulation structure of an electrolytic cell, comprising the shell of the electrolytic cell, a thermal insulating layer and a protective layer, wherein the thermal insulating layer is arranged outside the shell of the aluminium electrolytic cell; and the protective layer can be arranged outside the thermal insulating layer optionally. A thermal insulation structure outside the aluminium electrolytic cell can be a full-thermal insulation structure outside the shell of the aluminium electrolytic cell and also can be a thermal insulation structure in a local range. The thermal insulation structure outside the aluminium electrolytic cell can be a fixed thermal insulation structure or a detachable thermal insulation structure, thus the problem of heat balance of the electrolytic cell can be solved under the condition that the stability of the electrolytic cell is strengthened, the electrode distance is reduced and the voltage is lowered; the normal working requirements of the electrolytic cell are met; and in particular, the cost and time can be greatly saved when the heat balance of the existing electrolytic cell is maintained.

The invention provides a solar system controlled by intelligent communication. The solar system comprises a water heater, a heat reservoir, a total pipe valve and a central controller, wherein the total pipe valve is arranged on a total pipeline at the upstream of the water heater and the heat reservoir; the central controller realizes data connection with the total pipe valve; a hot fluid sensoris arranged in the total pipeline at the upstream of the total pipe valve; the hot fluid sensor is used for detecting whether hot fluid flows through the total pipeline; and the central controller isused for controlling the opening and closing of the total pipe valve of the data detected by the hot fluid sensor. According to the solar system provided by the invention, the opening and closing is intelligently controlled according to the fluid so that the closed loop function is realized between the heat reservoir and the water heater according to actual condition; when no fluid exists, the water heater is heated by utilizing the heat stored by the hot fluid so as to meet the actual work requirements of the water heater, thus solar energy can be fully utilized, and waste of too much heat isprevented.

The invention discloses a power adapter comprising an alternating current input circuit, an electromagnetic interference filter circuit, a rectifier filter circuit, a pulse width modulation circuit, a transformer, a first rectifier filter circuit and a second rectifier filter circuit; the alternating current input circuit is connected with an external alternating current power supply; the electromagnetic interference filter circuit is connected with an alternating current input circuit; the rectifier filter circuit is connected with the electromagnetic interference filter circuit; the pulse width modulation circuit is connected with the rectifier filter circuit; the transformer is connected with the pulse width modulation circuit; the first rectifier filter circuit is respectively connected with the transformer and a first voltage output end Vout1; the first voltage output end Vout1 is connected with first electric appliance equipment; the second rectifier filter circuit is respectively connected with the transformer and second voltage output end Vout2; and the second voltage output end Vout2 is connected with second electric appliance equipment. According to the power adapter disclosed by the invention, double-circuit voltage independent output can be realized, so that the normal working requirements of two pieces of electric appliance equipment are met, the adapter purchasing cost of a user and the valuable indoor space of a user are saved.

The invention relates to a hybrid power battery pack, an electrical control system thereof, a crane and a system working method. The hybrid power battery pack comprises a plurality of storage batteries which are connected in series respectively. Battery voltage and temperature detecting modules are arranged on the storage batteries. The output ends of the battery voltage and temperature detecting modules are connected with signal collecting ends of a battery management device main machine which is suitable for controlling the charging-discharging parameters of the storage batteries according to the voltage and / or the temperature of the storage batteries, so that the service life of the batteries is prolonged, and the normal working requirements of the electrical control system are met. Generator power is effectively lowered, noise pollution and exhaust emission of a generator are lowered, the operation cost of the generator is saved, and after mounting on an RTG is carried out, RTG flexible transferring working is convenient.

The invention belongs to the technical field of buildings, and discloses a BIM technology-based external hanging plate construction method of an integrally assembled building, which comprises the steps of collecting construction video data of an external hanging plate of a building, construction weather data of the external hanging plate of the building and construction material data of the external hanging plate of the building; constructing a building model; rendering an external hanging plate of the building model; selecting the optimal appearance of the external hanging plate of accordingto rendering effect; using a positioning mechanism for positioning the external hanging plate for building assembly assembling the external hanging plate of the building by utilizing an assembling mechanism; and calculating the construction amount of the external hanging plate of the building by utilizing a calculation program. According to the invention, through a building model construction module, the method has relatively high data production efficiency and relatively small model data volume, and a generated three-dimensional model is relatively high in accuracy; and meanwhile, various complex special-shaped component parameters can be calculated through an engineering quantity calculation module, and engineering quantity precision is enough to meet the actual working requirements.

The invention discloses a web crawler detection method based on access log IP analysis. The method comprises the specific steps of using a feature detection method for detecting features in an accessrequest data packet to judge whether an access request data packet is a common crawler or not; Using an access behavior detection method to detect the proportion of the IP to the static resources andthe dynamic resources so as to judge whether the IP is an advanced crawler or not; Detecting the page view of the website interface by using a special crawler detection method to judge whether the website interface is a crawler or not; Outputting a judgment result; According to the method, the IP is recognized through three detection methods, common crawlers, advanced crawlers and special crawlerscan be covered, effective crawler recognition can be conducted in a larger range, the false alarm rate can be controlled by adjusting parameters in the detection process, and the actual work requirement is better met.

The invention discloses a limiting device for the bent portion of a cloth rack conveying chain. A cloth rack can be hang on a guard bar of the limiting device in a connected manner, the use function of the limiting device can be effectively expanded, the structure is simple, and arrangement is convenient. According to the technical scheme, the limiting device for the bent portion of the cloth rackconveying chain is arranged on the outer side in the direction of the bent portion of the cloth rack conveying chain and structurally comprises the guard bar with an arc portion, the conveying chainis formed in the manner that a plurality of chain plates are hinged together in an end-to-end manner, and a clamping opening used for clamping a cloth rack rolling wheel is formed between every two adjacent chain plates. The limiting device for the bent portion of the cloth rack conveying chain is characterized in that the guard bar is connected to a movable type connection structure and used foracting on the connection structure, the guard bar is made to be close to the conveying chain and limits the cloth rack rolling wheel on the conveying chain, so that the conveying chain can convey thecloth rack; or the guard bar is far away from the conveying chain, so that the cloth rack rolling wheel can be connected to the guard bar in a hung manner, and under the push of the guard bar, the cloth rack rolling wheel enters the corresponding clamping opening of the conveying chain.

The invention provides an electromagnetic valve structure for a variable-lift air valve cam shaft. The electromagnetic valve structure for the variable-lift air valve cam shaft is applied to the technical field of automobile engine parts, one end of a movable push rod (4) of the electromagnetic valve structure for the variable-lift air valve cam shaft movably penetrates through a valve sleeve (2)and a baffle (3) to extend into a valve body (1), one end of a compression spring (6) sleeving the movable push rod (4) abuts against a shaft shoulder (5), the other end of the compression spring (6)abuts against the baffle (3), a limiting clamp groove (7) is formed in one end of the movable push rod (4), the valve body (1) is internally provided with a solenoid (8) and a push rod buckle (9), anda magnetic core (10) is arranged in the solenoid (8). According to the electromagnetic valve structure for the variable-lift air valve cam shaft, extending and retracting control over the movable push rod of an electromagnetic valve can realized conveniently and reliably, limiting is effectively realized when the movable push rod retracts, response pop-up is realized quickly when the movable pushrod extends, and the demand for controlling an engine camshaft is met.

The invention belongs to the technical field of energy and chemical engineering, and particularly relates to a wind power-photoelectricity coupling industrial scale stable hydrogen supply system. Thesystem comprises a wind power generation coupling photovoltaic power generation unit, a power storage unit and a water electrolysis hydrogen production unit, which are connected in sequence; and a hydrogen storage unit can be connected behind the units. The capacities of the wind power generation coupling photovoltaic power generation unit, the electric power storage unit and the hydrogen storageunit meet a certain criterion model, so that the feasibility of hydrogen supply system construction can be analyzed, the implementation and transformation of the hydrogen supply system can be guided,the battery capacity is greatly reduced, and the cost is saved. The coupling complementation of wind power and photovoltaic power generation stabilizes the fluctuation of different time scales, the power supply fluctuation is less than 30%, and the hydrogen supply fluctuation is less than 10%. According to the invention, the system can achieve the large-scale stable hydrogen supply, and completesthe coupling of renewable energy and traditional energy and chemical engineering. Compared with a traditional hydrogen production technology, the system has the obvious advantage of carbon emission reduction and has reasonable economic benefits.

The invention discloses a CAN-bus rotating speed sensor and a data processing method based on a CAN bus. The CAN-bus rotating speed sensor comprises a CAN bus terminal, a data transmission chip, and a mobile terminal. The CAN bus terminal is used for acquiring the parameter information of a vehicle and sending a message carrying the parameter information. The data transmission chip is used for receiving the message sent by the CAN bus terminal and sending the message to the mobile terminal. The mobile terminal is used for receiving the message sent by the data transmission chip, analyzing the acquired message in order to obtain first data information indicative of vehicle running speed and / or engine rotating speed, and displaying the first data information in a terminal interface of the mobile terminal. The CAN-bus rotating speed sensor may accurately and fast feed back running information of the vehicle without any external devices, and is simple in structure and low in cost.

The invention discloses a position feedback device for a working roller of a multi-roller mill and a position feedback control method of the position feedback device. A control system is matched with the corresponding position feedback device to perform position adjustment control on a roller system after a roller is replaced and before a roller leaning test is performed, so that effective support for the roller system is realized; transverse movement oil cylinders drive transverse movement arms to move along linear guide rails to reach initial set positions; rotating oil cylinders drive rotating arms to reach mechanical zero positions; position sensors are matched with the control system and the transverse movement oil cylinders to enable the transverse movement arms to reach positions where the transverse movement arms are in no-clearance surface contact with the rotating arms; and load sensors are matched with the control system and adjustment devices which are arranged at the central line positions of fixed arms and are used for adjusting the transverse movement arms so as to drive the transverse movement arms, the rotating arms and side supporting roller boxes to achieve the effect that a set value of a load difference between two sides can be met. The position feedback device for the working roller of the multi-roller mill and the position feedback control method of the position feedback device are high in load-deflection resistance, the stability of the roller system is high, and the surface quality of a rolled strip is high; and the stability of the rolling working condition and the rolling continuity are guaranteed.

The invention relates to a monitorable street lamp. The monitorable street lamp is characterized by comprising an electricity generating assembly, a lighting assembly, a monitoring assembly and a supporting assembly; the electricity generating assembly is positioned in the supporting assembly and at the upper end of the supporting assembly; the lighting assembly is arranged at the top end of one side of the supporting assembly; the monitoring assembly is fixed on the outer wall of the supporting assembly; the supporting assembly is fixed on the ground; the electricity generating assembly comprises a photovoltaic panel and storage batteries; the photovoltaic panel is fixed at the top end of a hydraulic telescopic lamp post; and the storage battery group is arranged in a street lamp pedestal. The whole technical scheme is compact in structure, low in cost, energy-saving and environmentally-friendly. According to the technical scheme, the monitoring equipment is added on the basis of the design of the original traditional lighting street lamp, so the monitorable street lamp has the night lighting function and also has the functions of monitoring in real time, recording and saving. The monitorable street lamp can be conveniently added into an urban road monitoring network or a safety monitoring network, so the cost required by installation of an urban monitoring system is greatly saved.

The invention discloses a large automatic wall-plastering machine. The large automatic wall-plastering machine consists of a transmission lifting device (100), a material-conveying wall-plastering device (200) and a bottom frame travelling device (300). The transmission lifting device (100) comprises a motor (101), a coupling (102), a worm wheel and worm speed reducer (103), a gear (104), an uppervertical frame (105) with a rack, a middle vertical frame (106) with a rack, a lower vertical frame (107) with a rack, a support hydraulic cylinder (108), a connection hook (109), a verticality sensor (110), a pin shaft (111) and the like. The material-conveying wall-plastering device (200) comprises a hopper (201), a lead screw mechanism (202) with a material-conveying pipeline, a conveying belt(203), an upper adjustment hydraulic cylinder (204), a lower adjustment hydraulic cylinder (205), an adjustment connecting part (206), a wall-plastering plate (207), a dust blocking plate (208), a vibration motor (209) and the like. The bottom frame travelling device (300) comprises a bottom frame (301), a driving wheel (302), a sensor (303) and the like. The large automatic wall-plastering machine is mainly applied to plastering of inner walls of large buildings such as factories, can freely get in and out of the buildings, the working height of the machine can be adjusted freely according to the heights of the buildings, automatic lifting, automatic wall plastering and smooth operation are achieved, the wall-plastering quality is reliable, the working width can be adjusted, and automatic moving, positioning and fixing can be achieved.

The invention discloses a 90-degree spatial optical mixer with optimized polarization parameter configuration, belonging to the field of wireless communication technology. The 90-degree spatial optical mixer aims to solve the problem of lowered mixing efficiency caused by the polarization state mismatch between a local oscillation light and a signal light in the existing 90-degree spatial opticalmixer. The mixer comprises a local oscillation laser, a first half-wave plate, a quarter-wave plate, a second half-wave plate, a first polarization beam splitting prism, and a third half-wave plate, asecond polarization beam splitting prism, a first right-angle roof prism, a first balanced detector, a non-polarization beam splitting prism, a fourth half-wave plate, a third polarization beam splitting prism, a second right-angle roof prism, a second balanced detector , a right-angle prism, a polarization state detector, and a polarization state controller. The 90-degree spatial optical mixer with optimized polarization parameter configuration of the present invention gains wide application prospects in the fields of inter-satellite, satellite-ground wireless laser communication, and the construction of an air-space-ground integrated information network.

The invention relates to a police condition prediction parity data method and device. The police condition prediction parity data method includes the steps that previous police condition data are introduced; the police condition data per day are classified and combined according to a two-dimension address field and time slot, and the previous police condition data in each address field during the same time slot at different dates are obtained; the previous police condition data in the same address field during the same time slot at different dates are sequenced in a serial mode according to the date sequence to obtain the police condition parity data at different dates in the same address field and during the same time slot; the prediction police condition data possibly happening in the specified address field and during the specified time slot at the date to be predicted are calculated according to the police condition parity data through a predetermining estimation method. The police condition parity data have the relative crowd stability and the two-dimension features of the address field and time slot, estimation of future police condition data is realized according to the police condition parity data, police condition prediction of a specified address field and time slot is facilitated, the estimation result is more accurate, the actual police work efficiency is improved, and the actual work requirements are better met.

The invention belongs to the technical field of modern intelligent manufacturing, and relates to a high-quality motion path generating method of a mechanical arm in the field of industrial robots. According to the method, firstly, based on the negative index relation between the number of interpolating points and errors during quintic B-spline interpolation of the joint space path, the interpolation points are selected randomly two times, and errors between the corresponding interpolation result and the ideal path are calculated. The obtained interpolation result errors are taken as the basis,the median of the errors on the path is calculated, and the area with errors larger than the median on the path is taken as an interpolation point encryption area. Finally, quintic B-spline interpolation is used for the joint spatial dispersion angle value generated after encryption interpolation point zoning again, and a mechanical arm high-quality motion path with errors on the whole path smaller than expected errors is obtained. By means of the method, errors between the joint space path obtained through interpolation and the ideal path are effectively reduced, and the errors of the obtained high-quality motion path on the whole path are smaller than the expected errors.

The invention discloses a prefabricated pipe gallery which comprises a frame. The left side and the right side of the top end in the frame are each provided with a first fixed table. The left side and the right side of the bottom end in the frame are each provided with a second fixed table. Each first fixed table is connected with the corresponding second fixed table through a supporting column. The left end in the frame is provided with a first fixed plate, and the right end in the frame is provided with a second fixed plate. According to the prefabricated pipe gallery, by means of cooperation of the supporting columns, shield plates and a lifting plate, the first fixed tables and the second fixed tables cooperate through the supporting columns to support and divide the frame; the solidness and the space utilization effect of the frame are improved; lifting is achieved through cooperation, and maintenance workers can repair cables on first cable containing frames and second cable containing frames conveniently; and the shield plates are used for carrying out shield protection on a water feed pipe, a drain pipe and a heat pipe, the water feed pipe, the drain pipe and the heat pipe are prevented from being damaged during walking, and the actual work need of the gallery is greatly met.

The invention relates to a heat dissipating street lamp. The heat dissipating street lamp is characterized by comprising a power generation module, an illumination module, a monitoring module, a support module and a heat dissipating device; the power generation module is positioned in and at the upper end of the support module; the illumination module is positioned at the top end of one side of the support module; the monitoring module is fixed on the outer wall of the support module; the support module is fixed on the ground, and includes a lamp arm, a hydraulic extension lamp rod and a street lamp base; one end of the lamp arm is fixed on the hydraulic extension lamp rod, and the other end is used for fixing a lamp cover; the hydraulic extension lamp rod is fixed on the street lamp base; the street lamp base is fixed on the ground; and the illumination module is set as an LED bulb. Based on the design of a traditional illumination street lamp, monitoring equipment is added, so that the heat dissipating street lamp not only has a night illumination function, but also has functions of real-time monitoring and video storage; and the heat dissipating street lamp is provided with the heat dissipating device to largely prolong the service life.

The invention provides an intelligent communication controlled power station boiler waste heat utilization system which comprises an air preheater and a heat reservoir. The system comprises an upstream valve and a downstream valve. The upstream valve is arranged on an upstream flue of the air preheater and the heat reservoir, and the downstream valve is arranged on a downstream flue of the air preheater and the heat reservoir. The system also comprises a central controller which controls on-off of the upstream valve and the downstream valve according to data detected by a flue sensor. According to the system, on-off of the valves is controlled intelligently according to the flue gas flow, so that a closed loop circulating function between the heat reservoir and the air preheater is achieved according to the actual condition. Under the circumstance of no flue gas waste heat, the air preheater is heated by means of heat stored by the flue gas waste heat to meet the actual working demandof the air preheater, so that the flue gas waste heat can be utilized fully, and excessive heat waste is avoided.

The invention provides a power station boiler waste heat utilization system based on fume temperature communication control valve. The system comprises an air preheater and a heat storage device, a fourth temperature sensor is arranged in the flue upstream of an upstream valve, the fourth temperature sensor is used for detecting flue gas temperature in the flue, the fourth temperature sensor is indata connection with a central controller, and the central controller controls opening and closing of the upstream valve and a downstream valve based on the data detected by the fourth temperature sensor. Through the operation, when the flue gas temperature meets the requirement, excess heat can be stored in the heat storage device under the condition that the pre-heat generated by the air preheater meets the amount of air, in the absence of flue gas waste heat, the heat stored by the flue gas waste heat is utilized to heat the air preheater so as to meet the actual working requirements of the air preheater, therefore, the flue gas waste heat can be fully utilized, and the situation of excessive heat waste is avoided.

The invention discloses a 10-kV grid distribution line pre-operating method and system. According to the grid distribution line pre-operating method and system, the states of interconnection switches, disconnectors, individual line user wire inlet switches, transformer substations, and power lines and lead-out wires of switching stations on a 10-kV grid distribution line can be accurately reflected, line connecting modes can be shown visually in the mode of diagrams, and the states of neighboring switches and disconnectors to be operated can be determined through programs. The 10-kV grid distribution line pre-operating method and system can simulate the situations of operations to be performed to play a role of ensuring correctness, avoid accidental power cut, accidental power supply or accidental loop closing, guarantee the operational security of the 10-kV grid distribution line and improve the power supply reliability.

The invention relates to an anti-collision street lamp. The anti-collision street lamp comprises a power generation assembly, a lighting assembly, a monitoring assembly, a support assembly and an anti-collision device, wherein the power generation assembly is located in the upper end of the support assembly; the lighting assembly is located on the top end of one side of the support assembly, the monitoring assembly is fixed to the outer wall of the support assembly, the support assembly is fixed to the ground, and the support assembly comprises a lamp arm, a hydraulic telescopic lamp post and a street lamp base; one end of the lamp arm is fixed to the hydraulic telescopic lamp post, and the other end of the lamp arm is used for fixing a lampshade; the hydraulic telescopic lamp post is fixed to the street lamp base; and the street lamp base is fixed to the ground, and the anti-collision device is arranged around the street lamp base. According to the technical scheme, on the basis of the design of an original traditional lighting street lamp, monitoring equipment is added, so that a night lighting function and real-time monitoring and video saving functions are realized, and the anti-collision device is arranged, so that the safety of a driver is increased.

The invention provides a system and a method of testing high power microwave pulse signal field strength in a closed capsule. A high gain directional antenna 1 is used as a receiving terminal of a weak signal in the closed capsule, an interface of the high gain directional antenna 1 is connected with an input port of a low noise amplifier 3, an output port of the low noise amplifier 3 is connectedwith an input port of a high speed microwave detector 5, an output port of the high speed microwave detector 5 is connected with an input port of an oscillograph 6, the low noise amplifier 3 amplifies small signal power received by the high gain directional antenna 1 linearly to a working range of the next level of high speed microwave detector 5 so as to obtain a narrow pulse signal, the high speed microwave detector 5 converts power of the narrow pulse signal into a voltage signal and then tests the voltage signal by using an oscillograph 7. When the high power pulse signal detects shield performance of the closed capsule, low internal signal power of the closed capsule and narrow pulse cause test problems. The invention effectively solves the above problems.

The invention relates to a microphone and particularly relates to a watertight microphone with a gasbag. The watertight microphone comprises an upper shell (1) with a sound inlet (2), a lower shell (3) connected with the upper shell (1), and a microphone main body (6) arranged in the lower shell (3); the watertight microphone is characterized by further comprising the gasbag (10) which is communicated with an inner cavity of the lower shell (3). The watertight microphone disclosed by the invention can reduce influences of environment factors on performances of the microphone, satisfies normal working needs of the microphone, and can be widely applied to outdoor and water acoustic measurement.