67results about How to "Realize the adjustable function" patented technology

The invention discloses a capacitance testing circuit and capacitance-type sensor interface circuit chip thereof, which relates to the sensor device field and resolves problems that the capacitance testing circuit has complicated structure and the capacitance-type sensor interface circuit chip has large volume and is inefficient. The capacitance testing circuit includes a capacitance readout front end circuit, a demodulation amplifying circuit whose input end is connected to the capacitance readout front end circuit, and a buffering amplifying circuit whose input end is connected to the demodulation amplifying circuit. The capacitance-type sensor interface circuit chip includes a self measuring circuit, a bias current producing circuit, a sensor zero bias compensating circuit, a reference voltage generation circuit, a clock generation circuit, and a capacitance testing circuit respectively connected to the circuits; the self measuring circuit and the sensor zero bias compensating circuit are respectively connected to a outer capacity sensor; the capacitance-type sensor interface circuit chip is prepared by using an integrate circuit technique. The invention is suitable for open-loop or equilibrium closed-loop accelerameter and vibratory rate gyroscope.

The invention discloses a non-contact type fluid electric impedance measurement device and method based on a digital phase sensitive demodulation virtual inductance technology. The non-contact type fluid electric impedance measurement device comprises an insulating measurement pipeline, an excitation electrode, a detection electrode, a metal shielding cover, a virtual inductance module, a signal processing and communication module and a microcomputer. An alternating current excitation signal with specific frequency, which is generated by the signal processing and communication module, passes through the excitation electrode; under a series resonance state, inductive reactance generated by the virtual inductance module is used for eliminating influences which are caused by the fact that the electrode and fluid pass through an insulating pipeline to form capacitive reactance of a coupling capacitor, so that the total impedance of a detection circuit is equal to equivalent impedance of the fluid in the pipeline; then a detection signal is subjected to digital phase sensitive demodulation; and real part information and virtual part information of electric impedance of the fluid are acquired. The invention provides a feasible way for solving an electric impedance measurement problem of the fluid in the pipeline. The non-contact type fluid electric impedance measurement device and method have the advantages of simple structure of a sensor, non-invasion, adjustable inductance value, no influences on the flowing of the fluid in the pipeline and the like.

The invention provides a full automatic lamination device for a Chinese character "Ri" shaped type or E1 type iron core of a transformer. The full automatic lamination device at least comprises a lamination frame, a guide rail device and a screw rack which are fixed above the lamination frame and parallel to each other, a three-column lamination, a yoke column lamination and an upper yoke column lamination which move along the guide rail device and the screw rack; the three-column lamination, the yoke column lamination and the upper yoke column lamination are located on the same straight line and respectively connected with the guide rail device; the three-column lamination, the yoke column lamination and the upper yoke column lamination are respectively driven by a group of servo systems and a helical gear; the three-column lamination is provided with a transmission used for adjusting the edge distance of the transformer iron core; the three-column lamination, the yoke column lamination and the upper yoke column lamination are linearly stacked by means of intermediate alternating; left and right laminated reclaiming is adopted, the structure is compact and the efficiency is high, the lamination technological requirement on the Chinese character "Ri" shaped type or E1 type iron core of different transformer manufactures can be satisfied, and manual tedious labor can be replaced, thereby saving time and labor, realizing full automatic lamination and having strong universality.

The invention relates to an adjustable self-stabilization flow velocity reducer for a pipe. The flow velocity reducer comprises an input mechanism and an output mechanism, wherein a cavity is formed inside after the input mechanism is connected with the output mechanism; a flow inlet is formed in the input mechanism; a flow outlet is formed in the output mechanism; the flow inlet and the flow outlet are respectively connected with the pipe; a speed reducing mechanism is arranged in the cavity, and comprises a main shaft, multiple stoppers arranged at the upper end of the main shaft, a rotating wheel arranged at the lower end of the main shaft, and blades arranged on the rotating wheel; the stoppers are positioned at the back side of the flow inlet; the blades are positioned at the front side of the flow outlet; and the rotating wheel and the blades revolve under the flowing effect of a fluid. Compared with the prior art, the flow velocity reducer uses a method of blocking the flow inlet by the stoppers to realize the negative feedback adjustment between the fluid pressure and the flow velocity so as to realize a function of flow velocity self-stabilization; and included angles between the blades of the rotating wheel and the main shaft of the rotating wheel can be adjusted to change the remainder energy of the fluid in the flow outlet so as to realize the adjustment of the flow velocity in a stable range.

The invention relates to a refrigerator with an adjustable bottle seat height. The refrigerator includes a door lining, a pair of regulating supports which are arranged on the door lining of the refrigerator and vertically extend, a bottle seat and regulating wheels, and further includes fixing pieces and decorative pieces; the regulating wheels are separately connected with two horizontal ends ofthe regulating supports of the bottle seat in a clamping mode, the regulating wheels are placed in sliding grooves of the regulating supports, and when the bottle seat is under a horizontal condition, the regulating wheels are clamped at any one of limit clamping grooves of the regulating supports; and when the regulating wheels are rotated to break away from the clamping of the limit clamping grooves, the regulating wheels can be moved to any one of the limit clamping grooves to be clamped again in the vertical direction of the sliding grooves of the regulating supports, and the bottle seatheight regulation can be achieved. According to the refrigerator, the problem that a traditional refrigerator is inconvenient to operate is solved, the problem that in the prior art, the refrigeratorregulating structure with an adjustable bottle seat occupies oversize space is conquered, a function of multi-step continuous regulation of the bottle seat can be achieved, and the use ratio of the refrigerator is effectively improved.

The invention discloses an optical network unit terminal with adjustable power and a control method thereof. The optical network unit terminal comprises a central control station, an optical line terminal unit, an optical distribution network unit and an optical network unit. The central control station is provided with a network management to receive adjustment of an alarm triggering pump light source power supply and realize different pump light power outputs. The optical line termination unit comprises an OLT device, and one end of the OLT device is connected with a network management of acentral control station. The optical distribution network unit comprises a beam splitter, and one end of the beam splitter is connected with an OLT device through a backbone optical cable; The opticalnetwork unit (ONU) consists of several new ONU terminal equipments, each ONU terminal equipments consists of an optical filter, optical coupler, erbium doped fiber, pump light source and traditionalONU terminal equipments. The invention solves the problem of insufficient optical power in the use process of the PON network.

The invention relates to a stock breaking device for automatic grafting of apple trees. The stock breaking device comprises a fixing plate, a linear sliding table module, a cutting module and a clamping module. A sawtooth-shaped plate is arranged at the lower end of the fixing plate and used for positioning a stock, and a sawtooth-shaped notch of the plate is matched with a clamping claw to achieve a guiding effect. A linear sliding table is installed on the fixing plate, the length of a diagonal plane of the stock can be adjusted through movement of the linear sliding table, and the length ofthe diagonal plane corresponding to the length of a scion cutting wedge is obtained. An air cylinder installation plate is connected to a sliding block of the linear sliding table, cutting air cylinders are installed on the air cylinder installation plate, and an included angle between the two air cylinders is 30 degrees. A knife rest is installed on each air cylinder and can be detached to facilitate replacement of a blade. The stock breaking device is simple in structure, and functions of rapidly clamping the stock, adjusting the length of an oblique notch and breaking the stock are fulfilled; standardized operation of apple tree grafting is easily achieved, the grafting success rate is increased, the survival rate of grafted seedlings is also increased, meanwhile, the operation intensity of workers is effectively relieved, and operation conditions are improved.

The invention belongs to the technical field of electromagnetic compatibility measurement, and particularly relates to a cylindrical steel part magnetic characteristic measuring probe and an adaptivecircuit thereof. The measuring probe comprises a shielding shell, a first N-type connector, anultracrystalline magnetic ring and a coil, wherein the first N-type connector is arranged on the shieldingshell; the ultracrystalline magnetic ring is fixedly arranged in the shielding shell, and the magnetic conductivity of the ultracrystalline magnetic ring is 3400-4600; the coil is wound on the ultracrystalline magnetic ring, one end of the coil is grounded, and the other end of the coil is connected with the first N-type connector; and the shielding shell is provided with a gap close to the sideof the measured wire. Because the probe interface circuit can generate the bias configuration signal according to the control signal, the free superposition of the direct current bias of the signal tobe detected is realized, and the functional defects of the existing magnetic characteristic measuring probe are overcome.

The invention relates to a slurry pump piston. The slurry pump piston comprises a piston, a conversion block, a sealing strip and a connecting assembly, wherein the connecting assembly comprises a connecting shaft, a blocking ring and a sleeve. According to the slurry pump piston, a connecting point of the piston and a piston connecting rod can be regulated, so that an initial motion position of the piston is converted, and finally, the effect of regulating slurry discharge amount is finally achieved, and the adjustable function of slurry discharge amount of the slurry pump is realized. The slurry pump piston is simple to operate, is convenient to form, is wide in scope of application, is strong in universality and saves equipment procurement expenditure.