30results about How to "Play a role in amplifying" patented technology

The invention discloses an optical transmission projection type three-dimensional helmet display, which consists of a short-distance microprojection system, a spectroscope and a user screen. The short-distance microprojection system has a special structure consisting of an eye lens and a projection objective. A lens 2 serves as the eye lens and also is part of the short-distance microprojection system, so that the image projected on a screen by the projection system is a clear rear image, and the image on the scattering screen is amplified by the eye lens and reflected into human eyes by a half-reflecting half-transmission lens, and formed at a relatively far place.

The invention discloses a dermatoscope. The dermatoscope comprises a main body. The main body is provided with a mounting cavity, and a plurality of LED lights are connected in parallel in a circuit,and an anode and a cathode are respectively led out through wires. By turning on an external power source, the current of a first electromagnet and a second electromagnet is adjusted through a slide rheostat to change the position of a mounting tube and further coarsely adjust the distance between a light source and a lens to the skin. When a better imaging effect needs to be further achieved, a user only needs to rotate a knob manually according to the angular scale groove. Due to the fixed connection between the knob and a protection tube, a lens base can move up and down under the effect ofa first sliding rod with rotating of the protection tube, so as to finely adjust the distance between the light source and the lens to the skin, and achieve the aim of accurate imaging.

The invention relates to an anesthetic puncture needle. The anesthetic puncture needle comprises a needle base (1), a needle tube (2) and a weighing core (3). One end of the needle tube (2) is fixed to the needle base (1), and a lens (4) protruding out of the surface of the needle base (1) is arranged on one portion of the surface of the needle base (1). The lens is arranged on the surface of the needle base in a protruding mode, a liquid channel is formed in the position, where the lens is located, of the needle base, thus, medical staff can clearly observe the flow condition of liquid in the puncture needle through the arrangement of the lens, great convenience is brought to anesthetic operation of the medical staff, and anesthetic performance is improved. The needle base structure is improved, the medical staff can conveniently hold the puncture needle through the structural form of a jacket and a needle wing, and the operating stability of the medical staff is improved. Furthermore, a numerical identifier for identifying the type is arranged on the puncture needle, thus, the medical staff can visually observe the type of the anesthetic puncture needle, and no misjudgment is generated.

The invention provides a sputum suction device convenient to clean for pneumology department. The sputum suction device comprises a sputum suction pressure cylinder, a sealing ring, a sputum aspiration pull handle, a sputum aspiration pull rod, a sputum aspiration grab handle, a detachable sealing cover structure, an adjustable oral cavity abutting tooth socket structure, a replaceable sputum storage tank structure, a fixable magnifying glass structure, a connecting plug pipe, an anti-blocking cap, a connecting piece, a breather pipe, a sputum aspiration hose, a suction head and a hoop piece.The sealing ring is arranged at intersection of a sputum suction pressure cylinder and sputum suction pull rod, and the sputum suction pull rod is transversely inserted into the right side of the interior of the sputum suction pressure cylinder. The detachable sealing cover is in threaded connection with the left side of the sputum suction pressure cylinder, so that the sputum suction device can be detached and cleaned, and the defect that an existing sputum suction device is integrally arranged and is inconvenient to clean is overcome; and through the arrangement of an adjusting nut, the abutting tooth socket and a movable inserting rod, the effect of strutting the oral cavity of a patient in the sputum suction process is achieved, and the sputum suction operation is conducted smoothly.

The invention discloses an acoustic logging first arrival pickup method, which is characterized in that on the basis of acquired logging wave train data, on the basis of band-pass filtering and fuzzynested multistage median filtering denoising, a dynamic self-adaptive first arrival pickup range is solved through time difference obtained by an STC method, and acoustic wave first arrival is solvedby adopting a waveform envelope energy ratio method in the range. The method can accurately pick up the sound wave first arrival of the stratum with low signal-to-noise ratio and serious attenuation and the thin interbed and interlayer development stratum section.

The invention relates to the technical field of track deposit tightening. The invention further discloses detection equipment for self-correcting and tightening track deposits. The equipment includesa housing, wherein a liquid storage tank is fixedly connected to the interior of the housing; the interior of the liquid storage tank is movably connected with a screw rod; the surface of the screw rod is movably connected with a homogenizing plate; the interior of the homogenizing plate is movably connected with a compression spring; a liquid through groove is formed in the bottom of the liquid storage tank; an indicating rod is fixedly connected into the liquid passing groove; an extension spring is movably connected into the liquid passing groove and located at the bottom of the indicatingrod; a push plate is movably connected to the bottom of the extension spring; spring rods are movably connected to the two sides of the push plate; rotating shafts are movably connected to the ends, away from the push plate, of the spring rods, and buffer plates are movably connected into the clamping plates; according to the invention, the inclination angle of the track can be visually seen by observing the positions of the liquid and the indicating rod, and an amplification effect is achieved, so that the effect of reducing the detection error by correcting the detector by utilizing the levelness of the surface of the track is achieved.

A wine pot with internal painting and able to generate light and sound is composed of a pot body made of transparent glass and with a circular bottom, an inner core with internal painting, and such units arranged in the circular bottom of pot body as a sounding unit, a luminous LED unit, battery and switch.

The invention provides a current sensor, which comprises a current-carrying conductor, a magnetic sensor and a soft magnet. The current-carrying conductor is used for providing a flowing channel for measured current; the magnetic sensor is located around the current-carrying conductor and detects the determined current according to a magnetic field at the magnetic sensor; and the soft magnet is positioned around the magnetic sensor and is used for amplifying a magnetic field generated by the current I in the current-carrying conductor at the magnetic sensor. Compared with the prior art, the current sensor provided by the invention comprises the current-carrying conductor, the magnetic sensor and the soft magnet, and the soft magnet plays a role in amplifying the magnetic field generated bythe current in the current-carrying conductor at the Hall sensor, so that the sensitivity of the current sensor is improved.

The invention relates to the field of current transformers, in particular to a current transformer which comprises a first Rogowski coil and a second Rogowski coil, the coil winding directions of the first Rogowski coil and the second Rogowski coil are opposite, and the output of the first Rogowski coil and the output of the second Rogowski coil are subtracted to serve as sampling signals. By means of the structure, the influence of interference signals can be reduced, meanwhile, the effect of amplifying tiny detection signals is achieved, and detection of weak current signals is better facilitated.

An electric horn and a control method for absorbing electromotive force induced by a diode as an inductance coil. Using traditional capacitors to absorb induced electromotive force has high drain voltage, high cost and low reliability. The composition of the present invention includes: terminal, the terminal (6) is fixedly connected with the coil frame (4) through the housing (5), the terminal is connected with the wiring harness of the car body, and the housing and the diaphragm (3) are connected through the gland (2) ) is fixedly connected, the plastic shell (1) is installed on the gland, and the circuit board is installed on the coil frame. The circuit board includes a power circuit (8) and a control circuit (7). (11), an inductance coil (10) and a diode (9), the diode and the inductance coil are connected in parallel, the upper end of the inductance coil is connected to Vcc, the lower end of the inductance coil is connected to a switch, and the cathode of the diode is connected to the upper end of the inductance coil. The invention uses a diode as an electric horn for absorbing induced electromotive force of an inductance coil and a control method.

The invention discloses a miniature microwave induction antenna, which comprises an antenna chip, and is characterized in that the surface of the antenna chip is provided with an oscillation module, an adjustment module, a signal amplification module, a filtering module, an input signal end, a GND end and an OUT end. A first capacitor, a second capacitor, a third capacitor and a fourth capacitor are four 104 capacitors, the four capacitors play a role in oscillating filtering of the whole antenna, the first resistor and the fifth capacitor are matched with each other to play a role in amplifying and biasing the microwave antenna, and by adjusting the high-frequency tube, the second resistor can amplify the power of the whole antenna, a high-frequency tube plays a role in amplifying a microwave antenna signal, and a sixth capacitor plays a role in filtering and amplifying the signal output of the microwave antenna, so that the interference of a relatively strong radio frequency signal in a working environment on the antenna is avoided, the misjudgment reaction of the induction antenna is prevented, the induction reliability of the antenna is improved, and the application range of the antenna is expanded.

The invention discloses a method and a system for acquiring spectrum difference. The method comprises the following steps: (1) acquiring a plurality of groups of background spectrum data by adopting spectrum measurement equipment; (2) deleting average of the acquired background spectrum data, to obtain the spectrum noise data of the spectrum measurement equipment; and (3) performing validity judgement to the target spectrum data by utilizing the acquired spectrum noise data, and dividing the judged valid target spectrum data and the background spectrum data, to obtain ratio spectrum representing the spectrum difference. The system comprises a data acquisition unit, a spectrum noise data calculation unit, a target spectrum data validity judgment unit and a ratio spectrum calculation unit, which are connected sequentially. The quantity gain relationship of the spectrum data can be reflected by the ratio spectrum; the noise or target spectrum data seriously affected by noise interference can be rejected through performing validity judgment to the target spectrum data, and the calculation of the ratio spectrum can be conducted according to the judged valid target spectrum data, so that the accuracy is increased, and the target precision recognition is facilitated.

The invention relates to the technical field of pathogenic microorganism culture devices, in particular to a culture and observation integrated device for pathogenic microorganisms, which is characterized in that a plurality of grooves for placing culture dishes are formed in a culture box body, and a transparent observation window is arranged at the top of the culture box body; a culture mechanism comprises the culture dishes which are integrally communicated with sample collecting tubes; virus sampling swabs are mounted in the sample collecting tubes; an observation mechanism is mounted above the observation window; the observation mechanism comprises an observation mirror, and a micro camera is mounted on the observation mirror; and the observation mirror is installed on a fixing support, the fixing support can move in the axis direction of a first track, and the first track can move in the axis direction of a second track. The problem that in the prior art, the culture and observation process of the pathogenic microorganisms is inconvenient to operate is solved. The culture and observation integrated device is stable in overall structure, can be used for multiple groups of experiments in one batch, and can also be used for multi-angle and multi-area observation at any time. Culture and observation are integrated, so that the sample is prevented from being polluted in a sample transferring process.

A sounding wine pot with internal painting is composed of a pot body made of transparent glass and with a circular bottom, an inner core with internal painting, and such units arranged in the circular bottom of pot body as a sounding unit, battery and switch.

The invention relates to an oily water oil content real-time monitoring method and a monitoring device thereof. The change of the oil content of the oily water can cause the change of the viscous resistance correspondingly, and the change of the viscous resistance of the oily water is monitored to calculate the oil content of the oily water. The oily water enters the monitoring device, the blade of the device rotates at high speed, and while the oily water is stirred to be uniform, the change condition of the viscous resistance of the oily water is monitored; the change of the viscous resistance of the oily water can cause the change of the rotating speed of the blade under a condition of constant input power, the change of the rotating speed of the blade is recorded in a pulse form after being amplified by a step-up box, and the change of the pulse number is contrastively analyzed, so that the oil content of the oily water can be calculated. Small change of the viscous resistance of the oily water can be recorded by a pulse counter, so that the monitoring method has sensitive response and high precision, can be used for different oil products and is suitable for a condition of wide fluctuation of the oil content.