16 results about "Electronic feedback" patented technology

An optical processing system comprises an Optical Fourier transform stage; and one or more photodetectors for receiving a reference optical signal to provide currents and / or voltages relating to the intensities and / or phases of the reference optical signal; the system further comprising an electronics feedback loop which feeds back the currents and / or voltages and modulates the intensities and / or phases of a subsequent optical signal.

The utility model provides a steering system based on a yoke steering wheel and electronic steering gear box connecting structure, which comprises a steering unit, a steering unit and a control unit, the steering unit comprises a yoke steering wheel, an electronic steering gear box and a limiting mechanism, the steering unit and the control unit are installed in a ship cockpit, the steering unit is installed on a stern, and the electronic steering gear box is installed on the steering unit. The steering unit and the steering unit are both in electric control and communication connection with the control unit, and the control unit receives user operation information and actual steering data and outputs corresponding adjusting instructions through a PID algorithm. The connecting structure is compact in design, an electronic feedback system is strictly closed, the accuracy and reliability of the steering process are guaranteed, and the control performance of the ship is improved.

The present invention relates to a flow meter and a flow measurement method. The flow meter includes a main pipe and an electronic feedback display. The main pipe is provided with a first branch pipe and a second branch pipe that are symmetrically bent relative to the main pipe. A diversion portion for diverting or converging is provided between the ends of the first branch pipe and the second branch pipe and the main pipe. A first pressure sensor and a second pressure sensor connected to the electronic display are symmetrically provided on the outer sides of the bends of the first branch pipe and the second branch pipe, respectively. The method includes: a fluid flows into any end of the main pipe, diverts into the first branch pipe and the second branch pipe, and then converges and flows out of the other end of the main pipe. The flow calculation model of the electronic display regards the fluid as particle motion, calculates the flow rate based on set parameters and pressure data, and provides feedback display. The flow meter has the advantages of simple structure, small size, low price, almost no noise and vibration, can measure flow in both directions, is applicable to various pipe diameters and flow rates, has a wide range of applications, has low pressure loss, stable performance, guaranteed measurement accuracy, and fast measurement speed.

The invention provides a high-precision chip mounting device. A mounting cavity is formed in a first fixing frame; the driving piece is arranged on the first fixing frame, and an output shaft of the driving piece extends into the mounting cavity; the sliding rod mechanism is slidably arranged on the first fixing frame, the inner end of the sliding rod mechanism extends into the mounting cavity, and the outer end of the sliding rod mechanism extends out of the mounting cavity; the suction nozzle is arranged at the outer end of the sliding rod, the elastic piece is arranged at the inner end of the sliding rod mechanism, the transmission mechanism is connected between the sliding rod mechanism and an output shaft of the driving piece, the sliding rod mechanism can slide in the axial direction relative to the transmission mechanism, a first sensor is arranged on the transmission mechanism, and the elastic piece abuts against the first sensor. And the first sensor is electrically connected with a control mechanism of the chip mounter. Real-time pressure monitoring and automatic shutdown protection are achieved through the linkage design of the elastic piece and the first sensor, when the numerical value monitored by the Z-axis first sensor exceeds the limit, the mechanical arm stops continuing to move forwards, and through the synergistic effect of mechanical buffering and electronic feedback, electronic elements are prevented from being damaged due to overpressure.

The invention belongs to the technical field of mass spectrometry, and relates to a laser ionization dynamic delay triggering system and method based on electronic feedback control. A bias voltage is applied to a receiving plate to form a directional electric field, electrons generated in the ablation process are guided to move towards the receiving plate, a signal receiving module captures electronic signals in real time and transmits the electronic signals to a signal processing module, the signal processing module calculates particle kinetic energy parameters based on electronic signal characteristics, and the parameters directly reflect the spatio-temporal evolution state of particle plume; dynamically determining the optimal triggering time of the ionization laser; when laser energy is attenuated or a sample material is changed, an electronic signal acquired by a receiving plate synchronously changes, and an ionization laser triggering time sequence is immediately adjusted after processing, so that a second beam of laser is always matched with the optimal ionization moment of the particle plume, and a closed-loop control link of signal acquisition, parameter calculation and delay adjustment is formed; through real-time feedback of electronic signals, accurate perception of particle plume dynamic evolution and adaptive adjustment of delay time are realized.

The utility model discloses an assembly error-proofing testing fixture and a fork truck gearbox multi-disc clutch, which comprise a main body rod, a plurality of guide teeth are arranged on one side of the main body rod at equal intervals, a guide groove is arranged between every two adjacent guide teeth, a pressure sensor is arranged on the inner wall of each guide groove, a display screen is arranged at the top of the main body rod, and the display screen is connected with the main body rod. Wherein the pressure sensor is electrically connected with the display screen. According to the detection tool integrating physical limiting and electronic feedback, through the fusion design of the guide teeth and the sensor, installation errors generated by the assembly sequence, number and direction between the steel sheets and the friction sheets can be rapidly intercepted, plug-and-play detection is achieved, the rework rate is reduced, and the assembly efficiency is improved; the detection tool designed by the utility model can effectively detect the phenomena of neglected assembly and wrong assembly in the assembly of the multi-disc clutch, and human errors are reduced from the source and the product consistency is ensured by combining the physical structure design of the detection tool with the use of the embedded sensor.

The invention relates to a modular explosive ordnance disposal training system. The modular explosive ordnance disposal training system comprises a basic explosive module, an initiation device module, a sensor and feedback system, a user-defined scene expansion slot, a virtual training interface and a safety guarantee module, the basic explosive module comprises a simulation explosive, an additive, a packaging material and a detonating device interface; the interface of the detonating device adopts a standardized slot design; the sensor and feedback system comprises a pressure sensor, a vibration sensor, a tension sensor, a wireless communication module, a wireless data transmission module and a sound-light alarm; the safety guarantee module comprises material safety and fault safety. The mode that the explosives and the detonating device can be rapidly detached and combined is adopted, and various real scenes are simulated to achieve modular structural design; meanwhile, specific materials and electronic feedback are used, so that the real explosion risk is avoided, and the safety is improved; and the system has various training functions including coverage detection, identification and removal, and also supports data recording and redisk analysis.

This invention belongs to the field of optoelectronic technology, specifically relating to a novel synthetic dimension optoelectronic oscillator device and its implementation method for generating arbitrary chirped signals. This invention utilizes a high-speed phase modulation unit based on lithium niobate technology as the core component. By adjusting the delay difference between the phase drive signal period and the optoelectronic oscillator, it achieves a deep fusion of optical dimension synthesis and electronic feedback oscillation, enabling the generation of microwave signals with arbitrarily adjustable instantaneous frequencies. Furthermore, by controlling the time mismatch and drive signal voltage, the bandwidth and repetition rate of the output signal can be flexibly tuned. This invention combines the advantages of photonic bandwidth and flexibility with the stability and precision of electronics, enabling the generation of broadband, highly stable complex waveforms, and is expected to meet the application requirements of next-generation intelligent sensing systems for high-resolution detection and flexible waveform generation.

The invention provides a pressure primary metering system and an optical pressure gauge, and relates to the technical field of pressure gauges, and the system comprises a vacuum sealing cavity, a laser output module, a dual-channel resonant cavity and a processing module. The dual-channel resonant cavity is located in the vacuum sealing cavity and comprises a vacuum reference resonant cavity and an open-type measurement resonant cavity which are formed based on the same substrate, so that the cavity deformation of the two resonant cavities can be mutually counteracted. The reference resonant cavity forms a first transmitted light signal based on the first laser beam, and the measurement resonant cavity forms a second transmitted light signal based on the second laser beam. The processing module comprises a frequency shift unit and a processing unit, before and after the vacuum sealing cavity is inflated, the frequency shift unit carries out frequency shift on the second laser beam and transmits the second laser beam to the measurement resonant cavity, and the processing unit obtains the frequency of the second laser beam based on a second transmission light signal; and the internal pressure of the vacuum sealing cavity is obtained based on the frequency difference between the first laser beam and the second laser beam, so that introduction of a complex frequency locking light path and an electronic feedback control system is avoided.

The utility model discloses a winding machine for winding an SMD (Surface Mount Device) carrier tape. The winding machine is improved aiming at the three problems of large tension fluctuation, low mechanical limiting safety and poor winding positioning accuracy in the prior art. Comprising a vertical feeding channel formed by a main body frame, a feeding wheel and a guide wheel; the tension adjusting device is in linkage with a supporting rod to swing through a fixing rod assembly, an encoder detects the rotation angle in real time and feeds back a control motor to form closed-loop adjustment, and the problem of response lag of traditional passive tension control is solved. The second fixing rod is arranged below the supporting rod, and collision damage is reduced through 5-30 mm spacing limiting and a composite buffering pad. The limiting structure of the rail clamping device restrains the swing angle of the clamping rod through the rolling wheel and the baffle, and the rolling positioning precision is improved in cooperation with anti-skid lines of the carrier tape positioning clamping piece. According to the scheme, dynamic electronic feedback and mechanical protection design are combined, and the technical effects that tension is stable, the service life of parts is long, and the winding alignment degree is high are achieved.

The invention relates to the technical field of drug sustained release, and particularly discloses a temperature-sensitive hydrogel microneedle array drug sustained release method based on electronic feedback, which comprises the following steps: preparing a temperature-sensitive hydrogel precursor solution to obtain a pre-prepared mixed solution; injecting the pre-prepared mixed solution into a microneedle mold to form a drug-loaded temperature-sensitive hydrogel microneedle array; conducting films are electrically deposited on the surface of the initial micro-needle array and the micro-needle channel, and an electric control micro-permeable film micro-needle array is obtained; attaching the electrically-controlled micro-permeable membrane micro-needle array to the surface of the skin to obtain an adjusted micro-permeable array; when the local temperature of the human body reaches a second preset threshold value, the adjusted micro-transparent array releases the medicine; according to the invention, a plurality of independent chambers are arranged in the same microneedle array and are respectively loaded with traditional Chinese medicine nano preparations with different functions, so that directional release of each component in respective optimal environments can be realized. Active substances such as the middle-jiao-regulating pill extract, the health-care pill extract, tetrahydropalmatine and the like are free from compatibility conflict, so that the maximum exertion of respective drug effects is ensured.

The invention relates to a method and a device for stabilizing repetition frequency of a mode-locked laser based on genetic feedback, after a nonlinear frequency converter collects intracavity oscillation pulse in the mode-locked laser, frequency conversion is carried out to generate new wave band optical pulse, and the wavelength of the new wave band optical pulse does not fall in a gain interval of the mode-locked laser; the new wave band optical pulse passes through the optical delayer and then is injected back into the oscillation cavity of the mode-locked laser as an optical feedback pulse, the optical feedback pulse and the oscillation pulse in the current cavity capture each other and are synchronous in time, and the repetition frequency of the subsequent pulse is corrected by the preorder pulse of the mode-locked laser in an optical feedback injection mode. The repetition frequency stabilization is realized through an all-optical method, the use of an electronic feedback system is avoided, and the structure of a repetition frequency stabilization system is simplified; compared with links of detection, reference, filtering, comparison, amplification and the like of an electronic system, the optical feedback scheme is shorter in feedback time, higher in bandwidth and better in integration level; no heat is accumulated on the whole, and power consumption of a feedback system is zero.

The application provides a pressure primary metering system and an optical pressure gauge, and relates to the technical field of pressure gauges. The system comprises a vacuum sealed cavity, a laser output module, a double-channel resonant cavity and a processing module. The double-channel resonant cavity is located in the vacuum sealed cavity and comprises a vacuum reference resonant cavity and an open measurement resonant cavity formed based on the same substrate, so that the cavity deformation of the two can offset each other. The reference resonant cavity forms a first transmitted light signal based on a first laser beam, and the measurement resonant cavity forms a second transmitted light signal based on a second laser beam. The processing module comprises a frequency shift unit and a processing unit. The frequency shift unit shifts the frequency of the second laser beam before and after the vacuum sealed cavity is filled with gas, respectively, and transmits the second laser beam to the measurement resonant cavity. The processing unit obtains the frequency of the second laser beam based on the second transmitted light signal, and obtains the internal pressure of the vacuum sealed cavity based on the frequency difference between the first laser beam and the second laser beam, thereby avoiding the introduction of a complex frequency-locked optical path and an electronic feedback control system.

The invention relates to the technical field of pneumatic control, and provides a pressure difference adjusting device and a photoetching machine system.The pressure difference adjusting device comprises a flow adjusting body, a pressure difference adjusting body and a gas path manifold block; the gas path manifold block comprises a gas inlet pipeline, a pressure relief pipeline and at least two gas outlet pipelines; each air outlet pipeline is communicated with the air inlet pipeline, at least one air outlet pipeline is communicated with a pressure relief pipeline, and the pressure relief pipeline is communicated with the outside; the flow adjusting bodies are installed in the air outlet pipelines in an attached mode. The pressure difference adjusting body is installed in the pressure relief pipeline in an attached mode. The pressure difference adjusting device does not need a control valve or an electronic feedback adjusting device, only depends on a mechanical structure to synchronously adjust the pressure and the flow of the gas output by the gas outlet pipelines and the pressure difference between the gases output by the different gas outlet pipelines, and is low in hardware cost. Moreover, the differential pressure adjusting device has the characteristic of high integration, the structural size is greatly reduced, and the application range is wider.

The invention relates to the technical field of fabric dust removal, and discloses efficient dust removal equipment for composite fabric processing and a process thereof.The efficient dust removal equipment for composite fabric processing comprises a dust removal box, two conveying mechanisms are arranged on one side of the dust removal box, and an air injection mechanism and a dust suction box are arranged on the upper side and the lower side of the interior of the dust removal box correspondingly; a beating mechanism is arranged in the dust suction box, a dust suction mechanism is arranged on the front side of the dust suction box and comprises a dust suction hopper, a dust suction pipe and a rotary drum, and the top end of the dust suction hopper is communicated with a bent pipe. The device is reasonable in design, dust on the surface of the composite fabric is comprehensively and efficiently removed through the synergistic effect of multiple mechanisms, the integrated positive pressure monitoring mechanism senses the pressure change in the filter bag in real time, a maintenance alarm is triggered through a mechanical linkage and electronic feedback dual mechanism, dust removal parameters can be intelligently optimized based on the dust accumulation rate, and the dust removal efficiency is improved. And the dust removal efficiency is guaranteed, and meanwhile precise balance between energy consumption and the machining speed is achieved.

System for transmitting radio signals in fiber optic, comprising a receiving device, for receiving an input radio frequency electrical signal, first conversion means, for converting said input electrical signal into an optical signal, an optical fiber, for transmitting said optical signal at a distance, second conversion means, for converting said optical signal into a converted electrical signal and transmission means, for transmitting said converted electrical signal at the output of said system into an output electrical signal. The input electrical signal is sent to the input of a variable-gain amplifier driven by an electronic feedback device which receives as input the output signal from a wideband sensor or detector, for receiving as input the output signal from said variable-gain amplifier and being connected in series to an adapter circuit, the output of which is connected to said first conversion means. The adaptation circuit is a differential time constant circuit.