30results about How to "Strong receiving ability" patented technology

The invention discloses an MEMS geophone which comprises a protection shell provided with an upper cover, an MEMS machine core arranged in the protection shell, and a tail cone arranged outside the protection shell. The MEMS machine core comprises a machine core shell fixed into the protection shell, a supporting frame arranged in the machine core shell, and a plurality of MEMD accelerometers arranged on the supporting frame. The supporting frame is cuboid. The MEMS accelerometers are capacitive accelerometers and include the X accelerometer, the Y accelerometer and the Z accelerometer, wherein the three accelerometers are vertically arranged on three adjacent side faces of the supporting frame respectively, and the side face where the Z accelerometer is located is the top face, facing towards the upper cover, of the supporting frame. The tail cone is arranged on a screw which penetrates through a base plate of the protection shell and abuts against the machine core shell. A coil with the fixed frequency is not used in the MEMS geophone, the recordable dynamic range is large, the response bandwidth is wide, the resolution ratio is high, and detection of all broadband elastic waves generated by an artificial seismic source is facilitated.

The invention discloses a spring-adjusted automatic docking air supply device. The spring-adjusted automatic docking air supply device comprises a transmitting mechanism, a receiving mechanism and a mounting bracket, wherein receiving mechanism and the transmitting mechanism both adopt knuckle bearings and therefore can deflect by a certain angle, so that the transmitting mechanism and the receiving mechanism can still work normally under the complicated work conditions that the axes are not aligned in the initial state; a guiding conical mouth adopts a bell mouth and a linear guiding hole, so that the receiving capability of the receiving mechanism is stronger; the linear guiding hole can correct deflection of the transmitting mechanism to enable the axes of the transmitting mechanism and the receiving mechanism to be collinear; a positioning spring and a positioning spring adjustment hanging block are mounted in each of the transmitting mechanism and the receiving mechanism, so that the adjustment is more convenient; and the transmitting mechanism, as well as the receiving mechanism, adopts linear contact between a steel ball and a valve opening for sealing, so that the sealing effect is good. The spring-adjusted automatic docking air supply device eliminates potential safety hazards of workers in high-risk complicated environments, the production automation and the object transport automation are improved, and the production cost is lowered.

The invention relates to a universal-type automatic gas supply joint. The universal-type automatic gas supply joint comprises a transmitting mechanism, a receiving mechanism, a balance mechanism and amounting bracket. The receiving mechanism and the transmitting mechanism are both provided with knuckle bearings, and the mechanism deflection butt joint working condition requirements can be met. Alimiting support and a limiting support half ring are adopted for preventing the receiving mechanism from being excessively deflected. Due to the unique structural design, the transmission mechanism can automatically achieve the functions of inserting joint extending butt joint gas supply and inserting joint retracting gas supply stopping according to the pressure of a gas supply source, the safety problems existing in manual operations under the complicated environment are solved, and the labor intensity of workers is relieved. The balance mechanism on the tail portion of the transmitting mechanism and a balance weight on the receiving mechanism can ensure that corresponding mechanisms can automatically return to a preparation station in the vertical direction after butt joint gas supplyis completed. The universal-type automatic gas supply joint is suitable for pressure gas conveyance.

The invention discloses a pneumatic universal butt joint air supply device. The pneumatic universal butt joint air supply device comprises two parts: an air supply mechanism and an air reception mechanism. As a spring is designed, blowing connection can be implemented and finished with in a bigger deviation range, so that the centralized positioning precision is reduced greatly when a steel ladletakes the seat, and a crane driver is more easily to operate the device, the accidents caused by damage in collision of equipment is also reduced, and the device is high in reliability; as the springis designed, the air supply mechanism can return to the initial position of the vertical direction automatically after transmission. The butt joint sealing property is guaranteed by means of a uniquespherical curved soft seal in the air reception mechanism. Functions of butt joint of mechanisms to transmit and deliver air and automatic recovery of the mechanisms can be achieved without manual operations by means of the unique structural design of the air supply mechanism, the safety problem of manual butt joint transmission in complicated working conditions is solved, and the labor intensityof staff is alleviated.

The invention discloses a high-precision positioning receiver, which includes a roof panel, an installation opening is opened on the top wall of the roof panel, a receiver is installed inside the installation opening, and a There are two block slots symmetrically, and first springs are installed on the side walls on the opposite sides of the two block slots, and wedge-shaped blocks are installed at the opposite ends of the two first springs. Pull rods are installed on the side wall on the opposite side of the wedge-shaped block, and two installation cavities are symmetrically opened in the interior of the roof panel. The present invention is simple in structure and easy to implement. The original airtight installation of the receiver is changed to an open-air installation, so that the ability of the receiver to receive GPS signals is greatly enhanced, and the positioning accuracy of the vehicle is effectively improved. At the same time, rain and snow The weather automatic sealing system prevents water vapor from interfering with the normal operation of the receiver. The whole device is safe, stable, efficient and practical, and it is worth promoting.

A photoelectric composite geophone (1), comprising a housing (101), an optical fiber detection assembly (102) and a piezoelectric detection assembly (103). The optical fiber detection assembly (102) comprises a first compliant cylinder (1021) and a second compliant cylinder (1022), which are coaxially arranged, and a first optical fiber (1023) fixedly wound around the first compliant cylinder (1021) in a clockwise manner, and a second optical fiber (1024) fixedly wound around the second compliant cylinder (1022) in an anticlockwise manner. The piezoelectric detection assembly (103) is located between a lower end face of the first compliant cylinder (1021) and an upper end face of the second compliant cylinder (1022), and comprises a detection base (1031), a first piezoelectric piece (1032) fixedly arranged on an upper surface of the detection base (1031), a second piezoelectric piece (1033) fixedly arranged on a lower surface of the detection base (1031), and an electrical signal transmission line (1034) electrically connected to the first piezoelectric piece (1032) and the second piezoelectric piece (1033). By means of simultaneous measurement of seismic waves by combining the optical fiber detection assembly (102) with the piezoelectric detection assembly (103), the photoelectric composite geophone (1) can more accurately obtain an actual parameter of a vibration signal and has higher accuracy and credibility.

The invention relates to the technical field of communication testing, in particular to a device for testing the performance of an optical module receiving end, including a bit error rate tester, which includes a signal sending module, a microchip, an electrical signal analysis module, and an electrical signal receiving module. The signal sending module is connected to an optical attenuator through an optical cable, the optical attenuator is electrically connected to a computer, the optical attenuator is connected to a spectrometer through an optical cable, the spectrometer is connected to an optical module and an optical power meter through an optical cable, and a receiver is installed in the optical module and an optical signal output module, the optical signal output module is connected with an oscilloscope through an optical cable, and the oscilloscope includes an optical signal receiving module, a converter, a processor, an electrical signal sending module, a signal display module and a display. The advantage of the present invention is that it can detect the loss and error of the optical signal in the testing process, thereby accurately judging the signal receiving capability of the optical module.

The invention provides LDS (Laser Direct Structuring) coating capable of being activated by laser. The LDS coating is prepared from the following components in parts by weight: 50 to 70 parts of resin, 5 to 10 parts of LDS laser powder, 5 to 60 parts of a solvent, 10 to 30 parts of a curing agent, 2 to 10 parts of a curing accelerant, 0.5 to 2 parts of a dispersant, 0.3 to 1.5 parts of a de-foaming agent, 0 to 40 parts of filler and 0 to 1.5 parts of a flatting agent, wherein the LDS laser powder is a metal organic compound; the LDS laser powder comprises an organic matter outer layer and a metal inner layer; the organic matter outer layer is gasified under laser irradiation; the curing accelerant is a mixture of dimethylimidazole and cobalt naphthenate. According to the LDS coating provided by the invention, the dimethylimidazole and the cobalt naphthenate are used as the curing accelerant and the LDS coating can be cured within half an hour at room temperature. The LDS coating provided by the invention is applied to an antenna and the prepared antenna has a strong signal receiving capability and low production cost.