46results about How to "Accurately “tuned" patented technology

Tunable upconversion mixers that have a controllable passband response and provide substantial image rejection, making costly post-mixing filtering at least optional, if not unnecessary for many applications. A single mixer is able to support several frequency bands (and/or be accurately tuned within one frequency band) by means of varying the capacitance in a tunable load circuit for the mixer circuit. The tunable mixer comprises a mixer circuit having inputs for receiving a signal to be upconverted and an oscillator signal to be mixed with the signal to be upconverted. The mixer generates a mixer output signal at a desired sideband frequency and an image signal at an image frequency. A tunable load circuit is coupled to the mixer circuit and responsive to a control signal to resonate and pass signals in a desired passband corresponding to the mixer output signal at the desired sideband frequency, and which attenuates signals in an attenuation band that includes the image signal at the undesired image frequency.

The invention belongs to a touch lock device for a door of a car and particularly to the device which can achieve unlocking and locking of a door of the car by touching of a button point on a handle decoration cover. The device comprises a handle decoration cover, a touch chip module, a switching control module and an intelligent key system, wherein the touch chip module senses capacitance fluctuation caused by the touching of the touch button point of the handle decoration cover and transmits an alternating electrical signal to the switching control module, the switching control module is connected with a key free entering sensing module, when signals of the touch chip is input, the switching control module is put through and output a control signal to the key free entering sensing module, the key free entering sensing module determines that a driver with the intelligent key enters a sensing area and outputs the control signal to a locking/unlocking driving unit to achieve a locking/unlocking action of the door of the car, or the switching control module outputs the control signal directly to the locking/unlocking driving unit to achieve the locking/unlocking action of the door of the car. The device has the advantages of being accurate in sensitivity, high in safety performance, attractive in appearance, practical and the like.

The invention relates to a method for calibrating camber angle and caster angle of wheel. the device executing the method comprises a lower swing arm and an upper swing arm, wherein one end, connected to a subframe, of the lower swing arm is provided with a front sleeve and a rear sleeve; a front bushing and a rear bushing are corresponding arranged in the front sleeve and the rear sleeve; the connected part of the front bushing and the subframe is provided with a first angle adjusting structure; the connected part of the rear bushing and the subframe is provided with a second angle adjusting structure; the first angle adjusting structure comprises a front cam shaft and a second dial; the second angle adjusting structure comprises a rear cam shaft and a fourth dial.

The invention discloses an adjustable safety and anti-theft transformer, which comprises a casing, the top of the casing is provided with a top cover, the left and right side walls of the inner cavity of the casing are provided with slide grooves, the outer walls of two sets of slide grooves are provided with sliders, and the sliders Matching with the chute, a connecting rod is arranged between the two groups of sliders, a screw hole is arranged on the outer wall of the top cover, an adjusting bolt is arranged on the top of the top cover, the bottom of the adjusting bolt penetrates the bottom of the screw hole, and the top of the connecting rod There is a positioning screw groove, and the adjusting bolt is connected with the connecting rod through the positioning screw groove. The adjustable safety and anti-theft transformer of the present invention can realize the compression and stretching of the coil by rotating the knob, change the inductance parameter in the intermediate frequency transformer, and change the inductance of the coil. Quantity, so as to realize the precise adjustment of the inductance of the transformer, and the safety protection performance is good, which can effectively prevent theft. In addition, it is convenient for wiring, has a certain shock absorption and anti-seismic ability, and has good stability.

The invention discloses an electro-optical system with adjustable focus. The electro-optical system at least comprises a body, a lens assembly arranged on the body, a light sensing assembly arranged with optical axis the same as that of the lens assembly, and a manual focusing structure, wherein the light sensing assembly and the manual focusing structure are arranged in a linked manner to adjust the focus between the light sensing assembly and the lens assembly. The invention also discloses an electronic otoscope applying the electro-optical system with adjustable focus. According to the invention, as the manual focusing structure is arranged, the focus can be adjusted manually in time according to the actual visual effect of the user in focusing operation, particularly, fine focus delayed in response of the existing electronic focusing structure can be adjusted, thereby having the beneficial effects of being high in focusing precision, convenient in focusing operation and the like.

The invention relates to a method for fast tuning the angle of LED chip. The method mainly comprises: including the chip into an angle interval; obtaining a rotating pivot angle of the angle interval; selecting the p angle interval, and rotating the chip film according to the rotating pivot angle of the angle interval, wherein, p is equal to 1; positioning the chip m according to the theoretical position coordinates X'm and Y'm after theoretical rotation, and obtaining deviation Lambada x and Lambada y between X'm and Y'm and the actual position of the chip after actual rotation; judging whether Lambada x and Lambada y are larger than a certain threshold, if yes, amending Ox and Oy according to Lambada x and Lambada y and correcting the position of the chip; if no, correcting the position of the chip according to the theoretical position coordinates X'm and Y'm after theoretical rotation; judging whether the chip in the p angle interval is selected and finished, if yes, ending the angle tuning of the chip in the angle interval; proceeding to the angle tuning of the chip of the next angle interval. The invention can improve accuracy of chip angle tuning, effectively reduce the overall chip tuning times and enhance chip angle tuning efficiency, and increase chip sorting speed.

Provided are an adjusting device and an adjusting method thereof which are suitable for adjusting a photosensitive assembly. The adjusting device comprises a first platform, a second platform, a third platform and a cover body. The first platform comprises at least three capacity slots. Each capacity slot is provided with a positioning module. Each positioning module is provided with a curved body and a positioning elastic component. The second platform is arranged on one side of the first platform and is provided with grooves corresponding to the curved bodies. Bearing parts of the second platform extend outwards. The third platform is arranged on the other side of the first platform and is electrically connected with a control module. The control module controls the third platform to move in the axial direction and enables the first platform and the second platform to move with the third platform at the same time. The cover body is arranged on one side of the second platform to suppress the photosensitive assembly, thereby enabling the photosensitive assembly to be flattened on the second platform. The bearing parts of the second platform are pushed by an external force, the second platform moves in the axial direction to carry out inclination adjustment of the photosensitive assembly, and the curved bodies keep contact with the grooves by means of the extension of the positioning elastic components.

The invention discloses a system and a method for monitoring system power supply. The method for monitoring the system power supply is suitable for an electronic device, and comprises the following steps: firstly, obtaining a charging material from a charging module; secondly, judging whether the charging module stops charging a battery or a battery capacity is higher than a preset battery capacity according to the charging material; if the charging module charges the battery, and the battery capacity is lower than the preset battery capacity, judging whether a charging current value of the battery is smaller than a preset current value; if the charging current value of the battery is smaller than the preset current value, and a system power value is smaller than a preset power value, controlling an element to reduce the preset power value; and if the charging current value is greater than the preset current value, and the system power value is greater than the preset power value, controlling the element to increase the preset power value so as to further correctly adjust the power of the electronic device.

The invention relates to a string fine-adjustment device for double row string instruments such as a double row Konghou. The string fine-adjustment device structurally comprises shaft (1), a taper sleeve (2), a sliding sleeve (3), a first gear (4), a second gear (5), a third gear (6), two fourth gears (7) and a knob (8).

The invention relates to an angle tooling device with adjustable angle, which comprises a base, and is characterized in that one end of the base is pivoted with an adjusting seat, and the other end thereof is pivoted with an equal-height pad supporting seat which is provided with an equal-height pad that is fixedly connected with the adjusting seat; one end of the base is pivoted with the adjusting seat by a locating pins shaft, and the other end thereof is pivoted with the equal-height pad supporting seat by a supporting seat pin shaft; and the equal-height pad is fixedly connected with the adjusting seat by a bolt and a gasket. Compared with the prior art, The invention has the advantages that 1, the device has compact structure and does not easily cause mechanical failure; 2, a whole tooling is not needed to be replaced when different products are replaced, and the equal-height pads representing different angles are only needed to be changed, so that the time for replacing the tooling is shortened by 2/3; 3, the adjustment is rapid and can be accurately preformed without a professional machine tool operator, and the adjustment time is reduced by 1/2 compared with the original tooling; and 4, the cost is saved, and the maintenance is easy.

The invention discloses a building aluminum formwork capable of being adjusted at different angles, and belongs to the technical field of building concrete construction formworks, which mainly solvesthe problems of large correction difficulty, instability in template reinforcement and influence on concrete pouring quality in a slope plate formwork combining wood ridges with short battens or steelpipe inclined struts on the back surface of a wood formwork. The building aluminum formwork is mainly characterized by comprising an aluminum formwork surface and a formwork bracket; and the top endof the formwork bracket is hinged with the aluminum formwork surface, and a height adjusting mechanism is arranged on the formwork bracket. The building aluminum formwork has the characteristics thatthe overall structure is simple, all joints of the formwork system are stably spliced, the slope of the formwork can be accurately adjusted, and the concrete construction quality can be greatly increased. The building aluminum formwork is mainly used for building construction supporting formworks of slope beams, slope plates and other related building slope components in high-rise buildings.

The invention relates to an optical fiber sensing device (1) for sensing the distribution of the compression/deformation of a compressible/deformable element (2), comprising: an incompressible/undeformable tubular element (3) with a recess (4) extending in a length direction (X) thereof, the recess being enclosed by the tubular element, an optical fiber (5) arranged in the recess, comprising one or more light distortion structures (6), and being expandable in the length direction of the recess, one or more expandable elements (8), having a higher compressibility/deformability than the tubular element in a transverse direction (Y), arranged at one or both ends (9) of the tubular element, the optical fiber being enclosed in the expandable elements, which are arranged for expanding/contracting in the length direction, along with the optical fiber, when the expandable elements are subjected to a transverse load (F).