100 results about "Signal Conditioner" patented technology

The invention provides a vibration active control method based on a secondary channel online identification FxLMS algorithm, a vibration active control system comprises a sensor, a vibration signal conditioner, an actuator, a piezoelectric power amplifier, a real-time control simulation system and a computer, and a built SPMFxLMS algorithm physical model is embedded in a computer controller. The SPMFxLMS algorithm physical model comprises a vibration response error signal calculation module, a control channel adaptive filter, an identification channel adaptive filter and an unknown secondary channel model, and the unknown secondary channel model is constructed according to the identification channel adaptive filter and updated in real time. The algorithm physical model constructed by the invention adopts an improved power scheduling strategy and an identification adaptive filter to update and calculate the vibration response time domain data of the controlled object, so that the obtained control voltage signal is reliable, the residual vibration quantity caused by identification noise is avoided, the vibration suppression effect is excellent, and the method has excellent noise immunity and applicability.

The invention discloses a vertical double-disc rotor vibration experiment table with multiple adjustable vibration factors. Comprising an L-shaped base, a variable frequency motor, a motor support, a coupler, a rotating shaft, a bearing seat, a transverse moving device, a disc, a feather key, a sensor support, a magnetic powder brake, a magnetic powder brake support, a magnetic powder tension controller, a computer, an information collector, a signal conditioner, a frequency converter, an inductive sensor, a T-shaped sliding block and a mass block. The unbalanced mass is regulated and controlled by increasing or decreasing the number of the mass blocks on the discs, the load of the magnetic powder brake can be controlled by adjusting the magnetic powder tension controller, and the axial position of the double discs can be changed. Under the excitation of the vibration, the displacement of the disc in the X and Y directions is recorded by using an inductive sensor so as to analyze the vibration characteristics of the disc. The method is suitable for simulating rotor experiments under various vibration excitation, and aims to verify the accuracy of theoretical analysis or provide reference for reducing the vibration of actual mechanical equipment.

The present application relates to a circuit for measuring resistance, comprising: a combined constant current source and constant voltage source for providing a constant supply current and a supply voltage, respectively, the supply current being less than or equal to 1 ampere; the resistor to be measured and the reference resistor are connected with each other in series and are electrically connected with the constant current source or the constant voltage source respectively; the load signal conditioner and the reference signal conditioner are electrically connected with the resistor to be measured and the reference resistor respectively; the two-way synchronous AD conversion module is electrically connected with the load signal conditioner and the reference signal conditioner respectively; the controller is electrically connected with the two-way synchronous AD conversion module; and the gear switcher is electrically connected with the controller and is used for switching between the constant current source and the constant voltage source. According to the circuit for measuring the resistance, the mode of combining the constant voltage source and the constant current source is adopted, and the resistance can be measured in a self-adaptive and high-precision mode in an ultra-wide range.

The invention provides a permanent magnet motor position-free control system DC bias compensator and a compensation method, and the compensator comprises an error calculation module which is used for comparing an original sampling current and an observation current of an alpha-beta coordinate system, and generating an error signal; the QPR regulator module is used for regulating the error signal through a quasi-proportional regulator QPR and outputting a direct-current bias observation value; the input compensation module is used for processing the direct-current bias observation value through the voltage and the counter electromotive force to obtain observation current, and the observation current is transmitted back to the error calculation module to form closed-loop negative feedback regulation; and the direct-current bias compensation quantity generation module is used for converting the direct-current bias observation value in closed-loop negative feedback regulation into the direct-current bias compensation quantity through a relation equation of a direct-current bias sampling value and a direct-current bias component and complex frequency variable conversion. And the direct current bias component in the original sampling current of the alpha-beta coordinate system is accurately compensated in a closed-loop negative feedback regulation mode.

A method is provided for improving the EMC robustness of Integrated Capacitive Sensor systems with a sensor Signal-Conditioner (SSC). The SSC is connected with a capacitive integrating converter to convert a received signal into a bit stream. An oscillator provides a plurality of sampling frequencies. A counter connected with the capacitive integrating converter collects the bit stream and calculates the digital representative of the physical input which is than stored in an output register. The method includes performing some conversions with different sampling frequencies from the oscillator or a frequency divider by the capacitive integrating Signal-Converter; storing the results of the samplings and using the results in the following cycle to calculate for each sampling frequency a difference to the prior sampling of the same frequency; and calculating the digital representative of the input signal from the external sensing capacitor as the reverse weighted average of the samplings of the different frequencies.

A signal conditioning connector assembly is provided, including an enclosure, and a plurality of signal conditioner layers mounted within the enclosure. Each signal conditioner layer includes a substrate, signal conditioner circuitry mounted to the substrate, first electrodes forming a first connector on a first side of the signal conditioner circuitry, second electrodes forming a second connector on a second side of the signal conditioner circuitry, a heat spreader in thermal communication with a side of the signal conditioner circuitry opposite the substrate, and a liquid cooling pipe positioned adjacent and in thermal communication with the heat spreader. The liquid cooling pipe is configured to draw heat away from the heat spreader for thermal management. The signal conditioning connector assembly can be positioned adjacent an interface between the vertical cable shuffle and the horizontal cable backplane within the rack of the computing device assembly of the first and second aspects.

The application discloses a flat valve repairing device, which comprises a fixing device, a valve cover disassembling device, a valve seat disassembling device, a turnover device, a valve cover fastening device, a packing sealing device and an ultrasonic cleaning device. The fixing device is used for fixing the flat valve; the valve cover disassembling device is used for disassembling the valve cover of the flat valve; the valve seat disassembling device is used for disassembling the valve seat; the turnover device is used for rotating the flat valve; the valve cover fastening device is used for clamping the valve cover; the packing sealing device is used for sealing the packing into the valve cover of the flat valve; and the ultrasonic cleaning device is used for cleaning the disassembled parts. The application further discloses an automatic control system of the flat valve repairing device, which realizes the automatic disassembling, assembling and packing sealing of the flat valve through an industrial control touch screen, a PLC controller, an A / D converter, a signal conditioner, a circuit driver and a power component driver. The application realizes the automatic operation of the disassembling and packing sealing of the flat valve, has high working efficiency and low labor intensity, and is suitable for all scenes in which the flat valve needs to be disassembled.

A system and method for generating ultra-short pulses intended to be inserted into a ring laser with a regulator of a pulsed signal of a certain intensity, the system includes an optical attenuator that allows the intensity of the pulsed signal to be adjusted at the input of an optical guide section, and a distributed amplification device inserted in the optical guide that make it possible to manage the power of the signal therein, so that it propagates as solitons or as self-similar pulses without suffering unwanted distortions despite the increase in the length of the laser cavity, increasing the power of the pulsed signal and making it possible to exceed the usual power limits of this type of laser.

This invention discloses a linear compensation circuit and method for a silicon piezoresistive pressure sensor, belonging to the technical field of silicon piezoresistive pressure sensors. The linear compensation circuit includes a signal conditioner D1, an operational amplifier N1, a lid curve correction switch S1, a bottom curve correction switch S2, and voltage divider compensation resistors R1 to R7. By adjusting the lid curve correction switch S1, the bottom curve correction switch S2, and the voltage divider compensation resistors R1 to R7, the correction excitation voltage UR is adjusted by feedback with the output voltage VOUT. The correction excitation voltage UR and the output voltage of the silicon piezoresistive pressure sensor core N2 are linearly related, ultimately enabling the silicon piezoresistive pressure sensor to output linearly, reducing the scrap rate of the silicon piezoresistive pressure sensor core N2, and solving the problem that existing linear compensation technologies can only achieve single linear compensation of the lid curve through the back-end circuit and cannot meet the linear compensation of the bottom curve.

High-resolution intravascular ultrasound (H-IVUS) operates under a large acoustic bandwidth, provides high resolution while maintaining good depth penetration, and exhibits other favorable characteristics like focused imaging. A H-IVUS transducer assembly can be manufactured at a low cost using conventional methods commonly utilized in the microelectronics industry. The H-IVUS transducer assembly can include a printed circuit having one or more electrical signal conditioners. One or more convertors made of a polymer and configured to convert electrical energy to acoustic energy and acoustic energy to electrical energy can be formed in place away from the printed circuit. After construction, the one or more formed in place convertors are interfaced to the printed circuit with at least a conductive material.

The invention discloses a pressure detection device for a pipe section type high-pressure paste conveying pipeline. The pressure detection device comprises a pipe type stress body, a rhombus structure, a clamping column structure and a signal conditioner. The clamping column structure comprises two clamping columns which are fixed to the outer wall of the tubular stress body and arranged side by side in the circumferential direction of the tubular stress body. The two ends, in the short diagonal direction, of a rhombic base body of the rhombic structure are fixedly connected with one clamping column respectively, and a strain beam provided with a strain gauge is connected between the two ends, in the long diagonal direction, of the rhombic base body. The signal conditioner is fixed to the outer wall of the tubular stress body and used for conditioning signals output by the strain gauges to obtain bridge output voltage U0 corresponding to resistance changes of the strain gauges, and internal pressure P of the tubular stress body is obtained through the bridge output voltage U0 output by the signal conditioner. The internal pressure of the pipeline is detected in a non-intrusive mode, nondestructive detection of the internal pressure of the conveying pipeline can be achieved, and normal operation and structural integrity of the conveying pipeline cannot be affected.

This invention provides a spacecraft interface force extraction and force limit testing method based on the least squares method, applicable to a spacecraft vibration testing system. The testing system includes a vibration table, an extended table surface or horizontal slide, test fixtures, a signal conditioner, a vibration controller, a power amplifier, a vibration table oil pump, a cooling unit, and an external circulating water system. The testing method comprises fourteen steps. This invention's method analyzes a wide frequency range, reduces the cost of spacecraft force limit testing, meets the engineering application requirements for quantifying interface forces, effectively mitigates overtesting in spacecraft vibration testing, and ensures the safety of spacecraft products and equipment operation.

The utility model discloses a dynamic strain data acquisition and conditioning device comprising a housing which is composed of a bottom box and an upper cover. A power switch, a data acquisition board and a signal conditioning board are arranged in the shell, the data acquisition board and the signal conditioning board are arranged up and down and fixed on the shell, and the power switch, the data acquisition board and the signal conditioning board are electrically connected through wires. According to the utility model, the data acquisition board and the signal conditioning board are integrated in the same device, and the original complex wiring which needs to be connected with the data acquisition device, the dynamic strain signal conditioner and the dynamic strain gauge is simplified into only two devices which need to be connected with the dynamic strain data acquisition device and the dynamic strain gauge, so that the wiring number is greatly reduced, and the wiring cost is reduced. And the wiring difficulty is effectively reduced.

A turbo-boost controlled intake system is disclosed that provides a driver of a vehicle with greater control over vehicle performance. The turbo-boost controlled intake system includes a control module that is coupled with an aircharger air intake. The control module instructs an electronic control unit of the vehicle to increase manifold pressure to a higher level before releasing the pressure through a waste gate so as to provide a greater power output of the engine. The turbo-boost controlled intake system further includes a wiring harness and a signal adjuster. The wiring harness couples the control module with a turbo inlet pressure sensor, a manifold absolute pressure sensor, and an electronic control unit of the vehicle. The signal adjuster includes a rheostat that enables manual adjustment of the power output of the engine.

A device for estimating the temperature of a loudspeaker's voice coil includes a signal generator, a signal adjuster, an adder, and a temperature estimator. The signal generator generates and outputs an amplified signal to a loudspeaker according to a measurement signal and an audio signal, and senses a voltage and a current of the amplified signal to generate and output a sensory output. The signal adjuster generates and outputs an inverted signal according to the audio signal. The adder adds the sensory output and the inverted signal to generate a blended signal. The temperature estimator obtains an estimated resistance value of the loudspeaker's voice coil according to the blended signal, and generates a temperature signal according to the estimated resistance value, wherein the temperature signal indicates an estimated temperature value of the loudspeaker's voice coil. Additionally, a method for estimating the temperature of the loudspeaker voice coil is provided.

The invention relates to a device for monitoring electric leakage discharge of an electrolytic bath and a monitoring method. The device comprises a power grid power supply unit, a contactor, a hydrogen production power supply, a proton exchange membrane electrolytic bath body, at least one sound pickup, a controller, an alarm unit, a valve control unit and a signal conditioner, the power grid power supply unit is connected with the hydrogen production power source through the contactor, the proton exchange membrane electrolytic bath body is connected with the hydrogen production power source and the valve control unit, and the sound pick-up is arranged on the periphery of the proton exchange membrane electrolytic bath body and used for collecting sound signals in the operation process of the proton exchange membrane electrolytic bath body. The sound pickup is connected with the signal conditioner, and the controller is connected with the signal conditioner, the alarm unit, the valve control unit and the contactor, so that timely monitoring can be realized, the omission ratio is low, and the operation safety can be improved.

The utility model relates to the field detection field, and discloses a breaker closing resistance state field detection device, in the device, a voltage and current signal acquisition system is arranged in a device main body, a signal conditioner is arranged on a PCB, a high-speed synchronous sampling terminal is electrically connected with the signal conditioner, and the high-speed synchronous sampling terminal comprises a GNSS taming clock, a high-speed sampling module and an intelligent data terminal; the operation panel is arranged on the outer surface of the device main body; the electric signal input interface is arranged on the device main body and is connected with the high-speed sampling module; and the 4G antenna is arranged on the device main body and is connected with the voltage and current signal acquisition system.

The invention relates to a non-magnetic metal classification technology, in particular to an aluminum alloy classification device and method based on a double-excitation eddy current array sensor, and the device comprises a belt conveyor, two stand columns, two cross beams, a transparent supporting plate, a correlation type photoelectric switch, an eddy current array sensor, a laser distance measuring sensor, a signal generator, a signal conditioner and an upper computer; the two stand columns are fixed to the ground on the two sides of the belt conveyor respectively. The head ends of the two cross beams are fixed to the upper ends of the two stand columns respectively. The transparent supporting plate is horizontally fixed between the tail ends of the two cross beams; an emitter and a receiver of the correlation type photoelectric switch are respectively fixed on the side surfaces of the two upright posts; the eddy current array sensor comprises four coils which are horizontally fixed on the upper surface of the transparent supporting plate and are arranged in a rhombus shape; the laser distance measuring sensor is fixed on the upper surface of the transparent supporting plate. The problem that the classification accuracy is low when an existing non-magnetic metal classification technology is applied to aluminum alloy classification is solved, and the method is suitable for aluminum alloy classification.

1. The name of this design product: signal conditioner. 2. Purpose of this design product: to provide constant current line drive power supply for IEPE (ICP) sensors. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The invention discloses a line resistance compensation method for long-line transmission of a magnetic flux cable force sensor, and the method comprises the steps: installing the magnetic flux cable force sensor at a working measurement point for detection, adjusting a magnetic induction voltage signal outputted by the magnetic flux cable force sensor through a signal conditioner, and transmitting the magnetic induction voltage signal to a data processing system for processing through a high-speed analog-to-digital converter; the data processing system adopts a least square polynomial to fit the signal, and obtains a quantization integral value of a working measurement point; and taking the obtained quantized integral value of the working measurement point as an interpolation point, realizing optimization of the quantized integral of the working point by using a bilinear interpolation algorithm, and solving the relative permeability and the stress value of the working measurement point according to the optimized quantized integral value of the working point. According to the invention, the problem that the accuracy of cable stress measurement is influenced by factors such as sensor signal noise and cable impedance is solved, and the measurement precision of magnetoelastic effect stress detection of the magnetic flux cable force sensor is improved.

The present invention discloses a signal conditioner for an impact stress wave system, which includes a power supply module, a constant current source module, a signal amplification module, and a filtering module; the power supply module converts the input voltage into the voltage required by the system to supply power to the constant current source module, the signal amplification module, and the filtering module; the constant current source module is connected to the accessed acceleration sensor, provides a constant current to the acceleration sensor, and transmits the measured voltage value to the signal amplification module; the signal amplification module is connected to the constant current source module and the filtering module, amplifies the voltage signal measured by the constant current source module, and transmits the amplified signal to the filtering module; the filtering module is connected to the signal amplification module, removes the bottom current from the amplified signal to convert it into a signal voltage, and transmits the signal voltage to the data acquisition card. The present invention realizes the reduction of system noise while being powered by a power supply with strong noise, and improves the measurement accuracy and robustness of the system.

The invention discloses a damage detection method and system for a high-voltage power transmission line and electronic equipment, and relates to the related technical field of power transmission line detection.The method comprises the steps that an excitation response detection module used for damage detection is arranged on the high-voltage power transmission line, and the excitation response detection module comprises a signal excitation unit and a response acquisition unit; inputting the component type of the target detection node to the adaptive excitation signal regulator, and obtaining an excitation response signal of the target detection node through a response acquisition unit; and carrying out damage comparison identification on the excitation response signal and the component-nondestructive response template, outputting a damage detection score of the target detection node, and uploading the damage detection score to a main control center of the high-voltage transmission line. The technical problems that in the prior art, excitation signals are not matched with line component types, the anti-interference capacity is weak, and consequently the damage detection precision and sensitivity of the power transmission line are poor are solved, and the technical effects that the excitation signals are matched in a self-adaptive mode, and the damage detection precision and sensitivity of the high-voltage power transmission line are improved are achieved.

A digital phase-locked loop includes a first clock divider, a decimation filter, a proportional integral filter, a signal conditioner, and a digitally controlled oscillator. The first clock divider divides a first clock signal including a first clock rate to generate a second clock signal including a second clock rate less than the first clock rate. The decimation filter converts an input signal at the first clock rate to an output signal at the second clock rate. The proportional integral filter filters the output signal at the second clock rate to generate a filtered output signal. The signal conditioner conditions the filtered output signal at the second clock rate to generate a conditioned output signal. The digitally controlled oscillator generates a carrier clock signal in response to the conditioned output signal.

The utility model discloses a radio frequency switch mode control circuit, and relates to the field of radio frequency switch circuits, a Vdd terminal is respectively connected to a signal regulator and a level shifter, and modulation voltage is introduced; the signal regulator rectifies the input modulation voltage and outputs a shaping voltage; the level converter is connected with the rectified output of the signal regulator and outputs a clock signal after demodulation; the MIPIcore decodes and outputs a mipi control signal based on the rectified output, a clock signal and a CTRL terminal input signal; the clock counter is used for counting and outputting a chip selection signal based on a clock signal, and the output chip selection signal is connected with a chip selection end of the data selector; and two input ends of the data selector respectively receive a mipi control signal and a signal input by the CTRL terminal, and output a radio frequency switch control signal according to a chip selection signal. The scheme is compatible with the existing universal 2T switch chip, and the function of freely switching the MIPI control mode and the GPIO control mode is achieved.

The utility model relates to the technical field of audio equipment production, and discloses an aging test device for an audio power amplifier, which comprises a box body, and a group of load resistors, a switching power supply, a signal regulator and a control circuit which are arranged in the box body. The surface of the box body is provided with a control panel, the back side of the box body is provided with an interface panel, the interface panel is provided with a signal input interface, a power input interface, a signal output interface, a left channel load interface, a right channel load interface and a power output interface, and the left channel load interface and the right channel load interface are electrically connected with the corresponding load resistors respectively. And the load resistor, the signal regulator, the control circuit, a control key on the control panel and the timing display are electrically connected with the control circuit. The load resistor is arranged on the radiator, and at least one side of the radiator is provided with a cooling fan. According to the aging test device, automatic aging test of the audio power amplifier can be realized, and the stability and the safety of the test process are improved.

An apparatus includes a sensor to generate a light signal in response to receiving gamma radiation, and a photo multiplier tube (PMT) that receives the light signal and generates a corresponding PMT signal. A voltage source provides a supply voltage to the PMT. The magnitude of the PMT signal depends on a magnitude of the supply voltage. A temperature sensor generates a temperature signal with a magnitude that varies with a temperature sensed by the temperature sensor. The temperature sensed by the temperature sensor is substantially equal to a temperature of the PMT. A signal conditioner modifies the temperature signal. A control circuit coupled between the voltage source and the signal conditioner receives the modified temperature signal and generates a control signal for adjusting the magnitude of supply voltage based on the modified temperature signal.

The utility model discloses an obstacle detection circuit, a controller and a robot, and relates to the technical field of artificial intelligence. The device comprises an ultrasonic sensor, a transformer and a signal regulator, and a secondary coil of the transformer is coupled with the ultrasonic sensor so as to excite the ultrasonic sensor through the transformer. Wherein the signal input end of the signal regulator and the ultrasonic sensor are arranged in parallel, and the driving output pin of the signal regulator is coupled with the primary coil of the transformer. Therefore, the ultrasonic sensor can be driven and excited through the transformer, the attenuation loss of sound wave energy of the ultrasonic sensor propagating in the air is met, and the propagation distance is increased. And the signal regulator is used for receiving and transmitting sound wave signals of the ultrasonic sensor. Therefore, on the basis of ensuring the detection distance of the obstacle, the hardware cost is greatly reduced.

The utility model discloses a generator excitation signal adjusting device with an anti-damage structure, which belongs to the technical field of generator adjusting device protection, and comprises a signal adjuster, a protective shell is mounted on the outer side of the signal adjuster, and the protective shell is connected with the generator excitation signal adjusting device. A guide rail is fixedly connected to the upper portion of an opening of the protective shell, a first protective door and a second protective door are installed below the guide rail, a first guide sleeve in sliding connection with the guide rail is fixedly connected to the top of the first protective door, and a connecting lug is fixedly connected to the top of the first guide sleeve. The surface of the connecting lug is rotationally connected with a connecting shaft rod, a first gear and a second gear are installed at the two ends of the connecting shaft rod respectively, a first rack meshed with the first gear is installed at the top of the protective shell, and the adjuster can be adjusted conveniently in the using process and can achieve the good protective effect.

A turbo-boost controlled intake system is disclosed that provides a driver of a vehicle with greater control over vehicle performance. The turbo-boost controlled intake system includes a control module that is coupled with an aircharger air intake. The control module instructs an electronic control unit of the vehicle to increase manifold pressure to a higher level before releasing the pressure through a waste gate so as to provide a greater power output of the engine. The turbo-boost controlled intake system further includes a wiring harness and a signal adjuster. The wiring harness couples the control module with a turbo inlet pressure sensor, a manifold absolute pressure sensor, and an electronic control unit of the vehicle. The signal adjuster includes a rheostat that enables manual adjustment of the power output of the engine.

Provided is a cartridge used in an electronic pen and housed in a pen body configured as an enclosure of the electronic pen, the cartridge including a first inner electrode and a second inner electrode arranged on the inner surface of a cartridge body configured as an enclosure of the cartridge, a signal source configured to supply a signal to the first inner electrode, and a signal detector configured to detect a signal appearing on the second inner electrode, in which the first inner electrode is coupled capacitively with a first outer electrode arranged inside of the pen body, the second inner electrode is coupled capacitively with a second outer electrode arranged inside of the pen body, and, between the first outer electrode and the second outer electrode, a first signal adjuster is interposed so as to adjust the amount of the signal flowing therebetween.