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202results about How to "Sensitivity is not affected" patented technology

Electromagnetic positioning device

The invention provides an electromagnetic positioning device, which comprises an induction positioning plate. The outer boundary of a side of the induction positioning plate is equipped with a fixing plate. A support base is mounted on the fixed plate on the front of the induction positioning plate. The lower portion of the support base is equipped with a track on which a projectile is disposed. A slide rod is mounted on the support base. A first spring is mounted on the slide rod. One end of the slide rod in the length direction is located at one side of the projectile, while the other end of the slide rod is located at the outer side of the fixing plate. The back of the induction positioning plate is provided with horizontally and vertically arranged coil array circuits. A USB interface is disposed in the induction positioning plate and is connected with a computer through a line. The projectile has an upper shell and a lower shell, and forms a cavity once being closed. A battery is mounted in the cavity and is connected with a circuit board via a wire. The circuit board is connected with a magnetic core coil via the wire. The invention can display the horizontal projectile motion as the resultant motion of the uniform linear motion in a horizontal direction and the free-fall motion in a vertical direction via the computer, and has the advantages of easy operation, low maintenance rate and long service life.
Owner:SHANDONG YUANDA LLONGWILL EDUCATIONAL SCI & TECH LTD

Gyroscope self-calibration device and method

ActiveCN106969785ASimplifies factory calibration calibration procedureReduce self-calibration costsMeasurement devicesElectricityGyroscope
Provided is a gyroscope self-calibration device and method. The gyroscope self-calibration device comprises a signal generator and a signal processing circuit, wherein the signal generator is used for producing modulating signals including a drive signal and an electric excitation signal, the modulating signals are used for driving a gyroscope to output a current signal having a phase shifting component, the signal processing circuit is used for processing the current signal output by the gyroscope to obtain a voltage value, and the angular velocity of the electric excitation signal in the modulating signals and the voltage value form linear relation. The gyroscope self-calibration device adopts the modulating signals to replace a traditional high-precision physical turntable and completes self calibration of the gyroscope. Therefore, a factory-leaving standardization calibration procedure of the gyroscope is simplified, and the self calibration cost is reduced. In the usage process of the gyroscope, a user can perform self calibration of the gyroscope in real time, so that device parameter change produced due to device ageing, environment temperature change, system noise and the like is avoided in the using process of the gyroscope, and reduction of the precision of the gyroscope is avoided.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI

Preparation method of curved screen phone tempered glass film

ActiveCN106827776AAvoid the problem of not being able to fit the screen completelyGuarantee the effect of hot bendingLamination ancillary operationsLaminationAdhesiveThermoplastic polyurethane
The invention belongs to the technical field of phone protective films, and particularly relates to a preparation method of a curved screen phone tempered glass film. The preparation method comprises the following steps: attaching an OCA optical adhesive with a specific thickness to the upper surface of a TPU (thermoplastic polyurethane) substrate, attaching a silica gel with a specific thickness to the lower surface of the TPU substrate to obtain a TPU film, and attaching the TPU film to a glass film subjected to hot bending tempering treatment. The curved screen phone tempered glass film has the advantages of favorable hardness, favorable water resistance and favorable high-temperature resistance, and can achieve favorable effects of impact resistance, scratch resistance, wear resistance and drop prevention. The curved screen phone tempered glass film can be completely attached to the phone curved screen without the phenomena of bubbles, degumming, press marks and the like, can effectively enhance the aesthetic property of the phone, can not influence the sensitivity of the phone screen after being attached to the phone curved screen, and is an ideal curved screen phone tempered glass film.
Owner:GUANGZHOU EHANG ELECTRONICS CO LTD

Auxiliary explosion vibration tester and explosion vibration test method

The invention provides an auxiliary explosion vibration tester which comprises a foundation pile and a vibration meter installation position, the lower end of the foundation pile includes a cone, the vibration meter installation position includes a hollow cube with three adjusting screws, the three adjusting screws are positioned in three vertical side surfaces of the hollow cube respectively, and the hollow cube is fixed in the upper end of the foundation pile via the three adjusting screws; and two steel bars bent to an arc shape or a groove type are arranged in the middle portion of the foundation pile, and are welded and fixed to the side surface of the foundation pile along the vertical direction, and the bent steel bars and the side surface of the foundation pile form an enclosed fixing ring. The invention provides a explosion vibration test method correspondingly. A sensor of an explosion vibration meter is bound and fixed to the auxiliary explosion vibration tester via gypsum and water; the auxiliary explosion vibration tester can be rapidly nailed into the ground of soil and broken stones, the surface is flattened rapidly, and the sensor of the explosion vibration meter can be installed stably and conveniently; and the auxiliary explosion vibration tester is simple in structure and low in cost and can be pulled out conveniently in a labor-saving way.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

L-shaped fishing method

The invention provides a fishing method. An upper hook (1), a lower hook (2), a lower lead weight (3), an upper lead weight (4), a buoy (5), a main line (6), a short sub-line (7) and a long sub-line (8) are included. The fishing method is characterized in that on the basis that according to the Taiwan fishing method, the hooks are not tied, and the buoy is well adjusted, the lower lead weight which reaches the bottom is added 2 cm above the upper side of the upper hook, the lower lead weight is fixed on the short sub-line of the upper hook, a metal ring is arranged on the lower lead weight, the long sub-line of the lower hook penetrates through the inner portion of the ring, so that two fishing hooks below the lower lead weight and the sub-lines lie at the bottom of water, fish can hardly find the sub-lines between the lead weights and the hooks, due to the fact that the long sub-line penetrates through the inner portion of the ring on the lower lead weight, the lower lead weight does not need to be pulled when the fish takes in lower hook bait, the sensitivity of the buoy is hardly affected, and the fishing method is a brand-new fishing method which has the advantages of a traditional fishing method and the Taiwan fishing method and overcomes the shortcomings of the traditional fishing method and the Taiwan fishing method. Due to the fact that the surname of the inventor is Li and a line group is shaped like a capital English letter L after the line group enters the water, the fishing method is called an L-shaped fishing method.
Owner:NINGBO CHENGDA MACHINERY RES INST

Broadband vector hydrophone with glass fiber reinforced plastics acoustic transmission cap package

The invention relates to a broadband vector hydrophone with a glass fiber reinforced plastics acoustic transmission cap package, and solves the problems that current hydrophone is narrower in frequency response range and larger in frequency response curve fluctuation. A metal tube shell of a signal processing circuit board is built in the hydrophone. A chip vibration damping support body is arranged on the top face of the metal tube shell. The chip vibration damping support body is provided with a four-beam sensitive micro-structure and a sensitive column. The acoustic transmission cap is fixed on the metal tube shell. The four-beam sensitive micro-structure, the sensitive column and the chip vibration damping support body are packaged in the acoustic transmission cap which is filled with a medium: silicon oil. The hydrophone is improved in the aspect of materials of the acoustic transmission cap, and a glass fiber reinforced plastics material replaces current polyurethane material. Under the circumstance that the sensitivity of the vector hydrophone is not affected, the frequency band of the hydrophone is expanded, the frequency response is improved, and the performance index of the hydrophone is greatly improved. The broadband vector hydrophone has a good application prospect.
Owner:ZHONGBEI UNIV

Fishing method

The invention relates to a fishing method. The fishing method relates to an upper hook (1), a lower hook (2), a lower lead weight (3), an upper lead weight (4), a buoy (5), a main line (6), a short auxiliary line (7) and a long auxiliary line (8). The fishing method is characterized in that on the basis that a hook is not tied in a Taiwan fishing method and the buoy (5) is well adjusted, the lower lead weight (3) to the bottom is then additionally arranged at the position 2 mm away from the upper edge of the upper hook (1), the lower lead weight (3) is fixed on the short auxiliary line (7) of the upper hook (1), a metal ring is further arranged on the lower lead weight (3), the long auxiliary line (8) of the lower hook (2) penetrates through the ring, the lower hook below the lower lead weight (3) and the auxiliary lines all lie at the water bottom, and fish cannot find the auxiliary lines between the lower lead weight and the hooks; as the long auxiliary line penetrates through the ring on the lower lead weight, the lower lead weight does not need to be pulled when the fish sucks baits on the lower hook, and the sensitivity of the buoy is basically not influenced. The brand-new fishing method has the advantages of a traditional fishing method and the Taiwan fishing method at the same time, and overcomes shortcomings of the traditional fishing method and the Taiwan fishing method.
Owner:铜陵顺光电子信息技术有限公司

Angling method

The invention relates to an angling method. An upper hook (1), a lower hook (2), a lower lead weight (3), an upper lead weight (4), a buoy (5), a main line (6), a short auxiliary line (7) and a long auxiliary line (8) are used in the angling method. The angling method is characterized in that on the basis that the buoy (5) is completely adjusted without fastening the upper hook (1) and the lower hook (2) in the Taiwan fishing method, the lower lead weight (3) reaching the bottom is additionally arranged at the position two centimeters above the upper hook (1) and fixed to the short auxiliary line (7) of the upper hook (1), a metal ring is further arranged on the lower lead weight (3), the long auxiliary line (8) of the lower hook (2) penetrates through the metal ring to enable the upper hook (1) and the lower hook (2) which are arranged below the lower lead weight (3) and the portions, on the lower portions of the lower lead weight (3), of the short auxiliary line (7) and the long auxiliary line (8) to all lie at the water bottom, and fishes can not easily find the portion, between the lower lead weight (3) and the upper hook (1), of the short auxiliary line (7) and the portion, between the lower lead weight (3) and the lower hook (2), of the long auxiliary line (8); due to the fact that the long auxiliary line (8) penetrates through the metal ring of the lower lead weight (3), the lower lead weight (3) can not be pulled to move when the fishes suck and eat baits on the upper hook (1) and the lower hook (2), and the sensitivity of the buoy (5) is basically not influenced. The angling method is a brand new angling method which has the advantages of a traditional fishing method and the advantages of the Taiwan fishing method and overcomes the defects of the traditional fishing method and the defects of the Taiwan fishing method.
Owner:NINGBO CHENGDA MACHINERY RES INST
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