52 results about "Signal Conditioner" patented technology

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.

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 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 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.

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.

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.

The invention provides a cooperative press-fitting transmission device for a universal joint cross shaft and a bearing, and relates to the field of universal joint cross shafts, the cooperative press-fitting transmission device comprises two main vertical plates arranged at a certain interval, the end faces of the upper and lower sides of the main vertical plates are respectively provided with a vertical upper support frame and a vertical lower support base, and the lower support base has a stable support effect; and rotary driving assemblies are fixedly mounted on the side surfaces, close to each other, of the main vertical plates on the two sides. Through the press-fitting punches which are symmetrically arranged up and down, the precise cross shaft positioning clamp and the bearing positioning block, and a closed-loop force control system composed of the pressure sensor, the signal conditioner and the main control box, the press-fitting force can be monitored in real time and dynamically adjusted, it is ensured that the press-fitting process of each bearing conforms to a preset process curve, and the press-fitting precision is improved. The consistency and reliability of press fitting are greatly improved, and quality fluctuation caused by manual operation is avoided.

A relay driver control system comprising: a microcontroller in electrical communication with a relay driver; a call signal conditioner unit in electrical communication with the microcontroller, the call signal conditioner unit configured to receive a call signal and provide a conditioned call signal to the microcontroller; a voltage signal conditioner unit in electrical communication with the microcontroller, the voltage signal conditioner unit configured to receive a voltage signal and provide a conditioned voltage signal to the microcontroller; wherein the microcontroller is configured to: monitor the conditioned call signal relative to a cycle time range; monitor the conditioned voltage signal relative to a voltage signal range; and output an activation signal to activate the relay driver when the conditioned voltage signal is within the voltage signal range and the conditioned call signal is within the cycle time range.

The utility model discloses an on-load tap-changer transient vibration signal acquisition sensing system, which comprises a synchronous controller, an MCU microcontroller and a vibration sensor, and is characterized in that the vibration sensor is in physical magnetic connection with a transformer shell through a magnetic base to acquire vibration signals of the transformer shell; the single-channel constant-current source signal conditioner is electrically connected through a shielding cable, is used for providing direct-current voltage and conditioning and amplifying signals, is connected in series with a vibration acquisition AD converter through a port, and is used for completing conversion from data analog vibration signals to digital vibration signals; according to the utility model, the vibration sensor, the current sensor and the communication subsystem are installed on the housing, close to the on-load tap-changer, of the transformer, a worker does not need to enter a site, and the sensors automatically collect vibration signals and driving motor current signals generated by switching when the on-load tap-changer is switched, and then upload the signals to the cloud platform. And signal storage, display and analysis are realized.

This application provides an aero-engine rotor runout testing system, comprising: multiple laser displacement sensors, matched and positioned close to multiple test surfaces of the rotor under test, to obtain runout signals from the multiple test surfaces; one or more laser signal conditioners connected to the multiple laser displacement sensors, used to condition the optical signals of the laser displacement sensors into electrical signals; a laser speed sensor, positioned at a location matched to a keyed phase feedback module arranged on the rotor under test, to obtain the phase signal of the rotor under test through the laser speed sensor and the keyed phase feedback module; a data acquisition module, connected to one or more laser signal conditioners and the laser speed sensor, used to acquire measurement data from the laser displacement sensors and the laser speed sensor; and a data processing module, connected to the data acquisition module, used to process the signals acquired by the data acquisition module to obtain vibration characteristic values ​​of the rotor under test.

The application provides a wide-range quasi-static six-dimensional force measuring device for a spacecraft, comprising four force sensors, a set of upper and lower mounting plates, a charge amplifier and a data acquisition instrument, the four force sensors are installed between the upper mounting plate and the lower mounting plate and are distributed in a rectangular diagonal manner, the force sensors are connected with the charge amplifier, the charge amplifier outputs three-axis resultant force and resultant moment to the data acquisition instrument according to the measurement signals of the force sensors; the charge amplifier is a Kistler multi-channel signal conditioner, which is specifically used for calculating and outputting corresponding resultant force and resultant moment according to the measurement signals input by the force sensors. In this way, the application realizes wide-range wide-band quasi-static force measurement of the spacecraft, can obtain interface force and moment information at the connecting point of the spacecraft, has the advantages of wide test frequency band, high eccentricity test precision and low cost.

The invention discloses an oil exploration system and method based on the Internet of Things, and relates to the technical field of oil exploration. The exploration system comprises a data acquisition assembly, a signal regulator and a data transceiver, the data acquisition assembly comprises a cantilever arm, a seismic sensor and a damping generator, in a working state, one end of the cantilever arm is fixedly connected with the ground, the other end of the cantilever arm is suspended, and the seismic sensor is arranged on the cantilever arm. The seismic sensor is used for detecting external stress and stress of the cantilever arm to obtain seismic wave vibration signals, the damping generator is arranged at the suspended end of the cantilever arm and can apply vibration damping to the suspended end of the cantilever arm, and the signal regulator is used for regulating output signals of the seismic sensor. The data transceiver is used for receiving signals output by the signal regulator and feeding back the signals to the control terminal, vibration signals can be picked up when vibration generated by the seismic source is small, damping is accurately generated when the amplitude is large, and the natural vibration period of the detection component is prolonged. The exploration method is based on the exploration system.

The invention belongs to the technical field of medical treatment, and discloses a sleep stage classification device and method based on multi-modal physiological signals, and the sleep stage classification device comprises an acquisition module, a man-machine interaction module and a main control module; the acquisition module comprises a multi-channel bioelectric sensor array, an analog-to-digital converter, a signal conditioner and a serial port communication module; the main control module is used for preprocessing data in the multi-modal physiological data packet and pushing a multi-modal physiological waveform obtained after preprocessing to the man-machine interaction module in real time; and the main control module is also used for analyzing the preprocessed continuous physiological data in the multi-modal physiological data packet, realizing online intelligent classification of sleep stages, and returning a classification result to the man-machine interaction module in real time. According to the sleep staging and classifying device, electroencephalogram, electrocardio, electro-oculogram and blood oxygen signals are fully utilized, and the effect of improving the sleep staging accuracy is achieved.

This invention discloses a self-zeroing fluxgate current sensor, belonging to the field of current sensor technology, aiming to solve the problem of zero-point bias error caused by the asymmetry of amplitude or phase of the two excitation signals in existing fluxgate current sensors. It includes an excitation signal generation circuit, two excitation cores and coils, an adder, an adjustable bandpass filter, an amplitude adjustment branch, a phase adjustment branch, a zero-adjustment controller, and a signal conditioner. The amplitude adjustment branch extracts the amplitude matching error of the two excitation induction signals, the phase adjustment branch extracts the phase deviation of the two excitation induction signals, the adjustment controller calculates the gain adjustment value and the phase adjustment value, and the signal conditioner uses the gain adjustment value and the phase adjustment value to adjust the gain and phase of one of the excitation drive signals in a closed loop, making the two excitation drive signals equal in amplitude and opposite in phase, directly eliminating the amplitude error and phase error from the excitation source, realizing mutual cancellation of the fundamental wave and odd harmonics, and fundamentally suppressing zero-point bias.

The technology disclosed teaches a system and methods for end-to-end self-calibration of a channel emulator, wherein the channel emulator includes at least one channel emulator signal chain and at least one integrated parallel calibration signal chain. The channel emulator signal chain further includes an input signal, a first signal conditioner, a first analog-to-digital converter, a baseband processor, second signal conditioner, and an output. The integrated parallel calibration signal chain further includes a sequence generator, wherein the sequence generator is configured to generate a pseudo-random sequence upon which a calibration analysis signal is overlayed. On the supplying side, the sequence generator is coupled to a second digital-to-analog converter for supplying the calibration analysis signal to be processed by the channel emulator signal chain. On the evaluating side, the sequence generator is coupled to a comparator for evaluating results of the processed calibration analysis signal.

This invention discloses a vertical double-disc rotor vibration test bench with adjustable multiple vibration factors, comprising an L-shaped base, a variable frequency motor, a motor bracket, a coupling, a rotating shaft, a bearing housing, a lateral movement device, discs, a sliding key, a sensor bracket, a magnetic powder brake, a magnetic powder brake bracket, a magnetic powder tension controller, a computer, an information acquisition unit, a signal conditioner, a frequency converter, an inductive sensor, a T-shaped slider, and mass blocks. The unbalanced mass can be controlled by adjusting the lateral movement device to prevent shaft misalignment, or by adding or removing mass blocks on the discs. The magnetic powder tension controller can also be adjusted to control the load on the magnetic powder brake and change the axial position of the double discs. Under these vibration excitations, the displacement of the discs in the X and Y directions is recorded using inductive sensors to analyze the disc vibration characteristics. This invention is applicable to rotor experiments simulating various vibration excitations, aiming to verify the accuracy of theoretical analysis or provide a reference for reducing vibration in actual mechanical equipment.

The technology disclosed teaches a system and methods for end-to-end self-calibration of a channel emulator, wherein the channel emulator includes at least one channel emulator signal chain and at least one integrated parallel calibration signal chain. The channel emulator signal chain further includes an input signal, a first signal conditioner, a first analog-to-digital converter, a baseband processor, second signal conditioner, and an output. The integrated parallel calibration signal chain further includes a sequence generator, wherein the sequence generator is configured to generate a pseudo-random sequence upon which a calibration analysis signal is overlayed. On the supplying side, the sequence generator is coupled to a second digital-to-analog converter for supplying the calibration analysis signal to be processed by the channel emulator signal chain. On the evaluating side, the sequence generator is coupled to a comparator for evaluating results of the processed calibration analysis signal.

A highly compatible power controller includes a signal recognition component, a switch driver, and a switching assembly. The signal recognition component includes a high-frequency signal recognizer. The high-frequency signal recognizer includes a signal input terminal, a signal conditioner, a first timer, a second timer, an AND gate, and a latch. The signal input terminal receives a first input signal and transmits it to the signal conditioner. The signal conditioner generates an adjustment signal based on the first input signal and transmits it to the first timer. The first timer detects the frequency of the adjustment signal according to a preset detection window, generates a first detection signal, and transmits it to the AND gate. The second timer generates a second detection signal based on the first input signal and a voltage start threshold value and transmits it to the AND gate, causing the AND gate to output a first logic signal, which is then transmitted to the latch. The latch controls the switch driver to turn the switching assembly on or off based on the first logic signal.

The invention relates to a method for detecting a seed posture and a seed taking state through an infrared contour projection inverse structure. A structure mainly comprises a correlation type infrared sensor, a single chip microcomputer, a signal conditioner, a central control machine, a patch type transmitting tube and a receiving tube. The device is characterized in that twenty infrared transmitting signal lamps and twenty infrared receiving signal lamps are respectively arranged on the patch type transmitting tube and the patch type receiving tube and are mounted in a seed taking area, and the patch type transmitting tube and the patch type receiving tube are U-shaped and are positioned on the same side. According to the invention, seeds are carried by a seed suction disc to pass through a detection area between a transmitting end and a receiving end; the patch type transmitting tube transmits infrared light to irradiate the central axis of the seed, and a detection signal returns to the patch type receiving tube through the infrared light; an output signal forms a projection similar to the central axis of a seed contour in the single-chip microcomputer, a cotton seed geometric center is used as an axis for rotation and inversion, a display displays the posture of the cotton seed, and the seed taking state (cavity, single seed and multiple seeds) is judged.

The application discloses a force control tool, an online force measurement system and a constant force regulation method. The force control tool comprises a machining tool, a tool adapter and a force sensor. The sensor of the force control tool detects and feeds back the contact force between the machining tool and the optical element to be machined, and the contact displacement between the machining tool and the optical element to be machined has a fixed mapping relationship with the contact force. The online force measurement system comprises the force control tool, a data transmitter, a signal conditioner, a data collector and a data processor, and is used for monitoring the contact force fluctuation, giving an early warning when the contact force exceeds the limit and outputting a displacement compensation amount to a machine tool. The constant force regulation method obtains the contact force and the corresponding micro-displacement compensation amount based on the online force measurement system, and realizes the constant control of the contact force through displacement regulation. The application can realize online monitoring, early warning and feedback control of the contact force in the machining process, prevent the workpiece or tool from being damaged due to excessive contact force, and has important significance for improving the machining safety and stability of the optical element.