6results about How to "Lower limit" patented technology

The application discloses a circuit for improving sampling precision of a position sensor, comprising a reference voltage module, a sensor interface module, a filter module, a first-stage amplification module and a second-stage amplification module; the reference voltage module is connected with the sensor interface module and is used for providing a reference voltage to the interface module; the filter module is connected with the sensor interface module and is used for selecting input signal voltage of the interface module according to frequency, avoiding interference of high-frequency signals and stabilizing voltage of the circuit; the first-stage amplification module is connected with the filter module and is used for primary amplification of the voltage transmitted by the filter module; and the second-stage amplification module is connected with the first-stage amplification module and is used for secondary amplification of the voltage transmitted by the first-stage amplification module. The circuit can not only greatly improve sampling precision of the position sensor, but also can be applied in many circuits by changing parameters of resistor devices, and has high universality.

The application relates to the technical field of feeding and discharging devices, in particular to a device for automatically feeding and discharging workpieces, which comprises a box body, further comprises a limiting mechanism, the limiting mechanism is provided with at least two groups and is respectively used for limiting and positioning processed workpieces and unprocessed workpieces, and the limiting mechanism is slidingly connected to the upper end of the box body; the limiting mechanism comprises a bearing table, a chuck and a clamping rod, the bearing table is slidingly connected with the box body, the chuck is rotationally connected with the bearing table, the bearing table is provided with a first guide hole, the chuck is provided with a second guide hole, the first guide hole and the second guide hole are distributed in a cross mode, the clamping rod is arranged at the intersection between the first guide hole and the second guide hole, the clamping rod is distributed in a plurality of intervals around the bearing table, the first guide hole and the second guide hole are each provided with a plurality of clamping rods in correspondence, and the chuck is connected with a driving assembly. The application has the effects of reducing the labor intensity of workers and increasing the feeding and discharging efficiency of workpieces.

The utility model relates to the technical field of oxygen detection, and discloses a trace oxygen purity detection device which comprises an outer tube and a detection inner tube, and a platinum wire temperature sensor is wound outside the detection inner tube; the sealing structure comprises end cylinders and ribs, the two ends of the outer pipe are each provided with one end cylinder, the two end cylinders are fixedly provided with the multiple ribs, the ribs are attached to the exterior of the outer pipe, gas is fed into a cavity of the detection inner pipe through the gas feeding pipe, and the gas is mainly hydrogen generated by electrolyzing water and gas to be detected; hydrogen and oxygen react to release heat under the catalytic action of a catalyst, the platinum wire temperature sensor can absorb heat, bridge unbalance is triggered through changes of the platinum wire temperature sensor, an output voltage signal and the oxygen concentration are in a linear relation, and then the oxygen concentration is measured. The trace oxygen detection device is improved in the aspects of precision, speed and stability in a breakthrough manner, and is particularly suitable for the advanced manufacturing field with strict requirements on oxygen content control.

This invention discloses an electrochromic smart dimming film and its roll-to-roll preparation method. The dimming film employs an innovative four-layer structure, consisting of a first transparent conductive substrate, an electrochromic composite layer, a composite electrolyte layer with both ion conduction and storage functions, and a second transparent conductive substrate. By integrating the ion storage function into the electrolyte layer, the ion migration path is significantly shortened, thereby achieving an ultrafast response of less than or equal to 0.5 seconds and an ultra-long cycle life of ≥100,000 cycles. Its preparation utilizes a fully wet roll-to-roll coating process, including steps such as electrochromic layer coating and curing, electrolyte layer slot coating, roll lamination, and low-temperature curing. The product of this invention features a simplified structure, superior performance, low cost, and suitability for mass production, and can be widely applied in the automotive, consumer electronics, and building energy conservation fields.

The utility model belongs to the technical field of perforated lamps, and particularly relates to an anti-falling patch type perforated lamp which comprises a working frame, first connecting holes are formed in the two ends of the surface of the working frame, a perforated lamp body is clamped in the working frame, and third connecting plates are fixedly installed on the two sides of the surface of the perforated lamp body. A working frame is firstly attached to a mounting surface through a double-faced adhesive tape, an external screw penetrates through a first connecting hole to mount the working frame, a perforated lamp body is clamped in the working frame to rotate, then a third connecting plate rotates into a first connecting plate, and a limiting plate moves up and down through elastic force generated by a second reset spring; and on the contrary, the second connecting plate is pulled to enable the limiting plate to move upwards, so that limiting on the third connecting plate is reduced, the perforated lamp body is rotated, pulled and disassembled, operation is easy, and the equipment operation difficulty is lowered.

The invention provides a rotating shaft device and electronic equipment, and the rotating shaft device comprises a first shaft, a second shaft and a supporting frame. The first shaft has a first state for driving the supporting frame to rotate around the second shaft by a first angle, a second state for rotating relative to the supporting frame by a second angle on the basis of the first angle, and a third state for driving the supporting frame to rotate around the second shaft by a third angle on the basis of the second angle; an eccentric wheel and a stop wheel; the two sliding blocks can be installed on the supporting frame in a relative sliding mode, and the first end of each sliding block is constructed to be combined with the stop wheel. The sliding block is driven by the supporting frame to rotate around the stop wheel within a first angle range or a third angle range in the first state and the third state, and the sliding block is prevented from rotating around the stop wheel in the second state. The second end of each slider is configured to engage with the eccentric to allow rotation of the first shaft relative to the support frame within a second angular range in a second state.