48 results about "Oscillography" patented technology

The invention relates to an individualized correction method and a device used for continuous measurement and estimation of arterial blood pressure by pulse wave. The PWTT (Pulse Wave Translation Time) of a measured person is recorded in real time, the mean blood pressure BP1 is acquired and recorded, the PWTT1 at the corresponding time is obtained, and the two data are taken as a first set of data. Then, the PWTT of the measured person is continuously monitored and recorded and at each time of monitoring that the absolute value of a difference between the present PWTT value and the PWTT value in the set of data recorded previously is larger than a domain value, an oscillography blood pressure instrument is triggered to measure the present mean blood pressure value BPn of the measured person. In this way, two or more sets of PWTT values and corresponding mean BP values are sequentially acquired in a monitoring time section, and two or more sets of data are taken as calculating data to calculate the individualized regression coefficients a and b of an equation A. The method and the device are easy in operation and implementation, and can enable the calculated regression coefficients to more agree with the actual conditions of measured individuals.

The invention discloses a method for ultrasonic detection of the bonding quality of thin-walled metal and a non-metal material, wherein an ultrasonic instrument is adopted for detection. The method comprises the steps of: firstly, making a comparative sample, and calibrating the sensitivity of the ultrasonic instrument according to a debonding defect testing hole in the comparative sample; then performing defect position testing on a product: detecting the bonding quality of the thin-waled metal and the non-metal material by adopting the calibrated ultrasonic instrument, placing an output port of a longitudinal wave probe of the ultrasonic instrument on an outer metal surface of the material product, and performing 100% scanning on a bonding face by adopting a moving scanning manner; and if the height of multiple pulse echoes of longitudinal waves at cells 6 to 10 of a horizontal baseline on a oscillography screen of the instrument is found to reach or exceed initial sensitivity during moving scanning, judging that a part below the probe has a debonding defect position or an adverse bonding defect, and if a height envelope curve of the multiple pulse echoes of the longitudinal waves at cells 6 to 10 of the horizontal baseline on the oscillography screen is lower than 50% and gradually decreases to 20% or no reflected waves exist, judging that the bonding quality is intact.

The invention discloses a detection method of braking response time of a brake of an elevator. A method for detecting the braking response time of the brake of the elevator by the aid of a band brake micro-switch is relatively large in error and low in accuracy. According to the method, a spring plate with a resistance strain gauge attached is additionally mounted at one end of each brake spring, when the brake performs braking, the compression amounts of the brake springs are gradually reduced, when the brake completes braking, the compression amounts of the brake springs are minimum, the strain of the spring plates is minimum at the moment, the strain of the resistance strain gauges is also minimum, the change of the brake springs is detected through the resistance strain gauges and strain indicators, the braking response time of the brake is the time difference between an outage signal and the minimum strain moment of the resistance strain gauges, and the time difference can be directly read through a two-channel oscillography recording instrument. The method has the very high detection accuracy and universality and is also easy to operate.

The invention particularly relates to a non-invasive blood pressure simulation system and an implementation method thereof. The non-invasive blood pressure simulation system comprises a microprocessor module, an air cylinder, a position sensor, a pressure sensor, a temperature sensor, an air outlet pipe, an inner blood pressure cuff and a pressure port, wherein the microprocessor module is used for outputting a pressure waveform signal to a stepping motor; the volume of the air cylinder is not more than 20 cc; the air outlet pipe is connected with the atmosphere through a first electromagnetic valve; the inner blood pressure cuff is connected with the air cylinder through a second electromagnetic valve; and the pressure port connected with a blood pressure meter is arranged on the air cylinder. The instrument provided by the invention can be used for detecting and correcting the blood pressure meter which applies an oscillography principle through an electronic technology and producing or researching and developing the oscillography non-invasive blood pressure meter; compared with the prior art, because the quantity value conversion device of the simulation instrument is high in efficiency, precise and is unnecessary to maintain for a long time, the simulation instrument has the characteristics of good repetitiveness, accuracy and long-time stability in operation; and compared with the traditional non-invasive blood pressure simulation device, the simulation instrument increases multiple detection functions, thereby achieving various simulation parameters and overall detection functions.

The embodiment of the invention relates to the electronic signal measurement field and provides a digital oscillographic signal display device. The device comprises a probe signal processing module, a CPU, a touch screen, a touch screen controller, an LCD and an LCD controller. The device integrates the display devices and control devices, avoids frequent diversion of attention of a user during operation and facilitates observation and operation. The device improves the human-computer interaction level, facilitates realization of a complex human-computer interaction interface and complex functions, reduces volume and lowers cost.

The utility model relates to a testing device of the automobile electrical signal, which is characterized in that after an external tapping (4) is connected with an electronic control unit (5) of the automobile or an automobile experiment table (6), or directly connected with the automobile or the automobile experiment table (6), the testing device can directly test the sensor, the actuator and the electrical signal whether the automobile is in running or not. The tests comprise the tests to the resistance, the voltage, the frequency, the pulse width, the duty factor, the oscillography and the breakover of the electrical signal. In fact, the external tapping (4) is a control module which can control the switch-on and switch-off of the inlet and outlet line, the line-to-ground short circuit, and the mutual short circuit among each line through the computer or the remote control. The test panel (2) is changeable and can test the electrical signal for a plurality of automotive type and a plurality of electronic systems of the automobile. The external tapping (4) can be connected with a plurality of test boxes (1) according to the need so as to achieve the group test.

The invention discloses a continuous blood pressure measurement device based on a photoelectric volume sensor, which includes an information detection layer, an information processing layer, and an information feedback layer. The information detection layer includes a first photoelectric volume sensor, a second photoelectric volume sensor, a blood pressure processing module, an oscilloscope Method blood pressure acquisition module, acceleration sensor, information processing layer includes: power supply, A/D sampling module, embedded processing module, memory, serial port, oscillometric method blood pressure acquisition module comprises arm type oscillometric method blood pressure monitor, the present invention adopts two The photoelectric volume sensor measures blood pressure, which can continuously monitor blood pressure without the discomfort caused by inflation, which greatly improves the wearing comfort. Accuracy, and the acceleration sensor cooperates to collect the user's body position information, and judge the blood pressure measurement state correction data, and improve the accuracy of the calculated blood pressure value.

The invention provides an intelligent blood pressure wrist watch. The intelligent blood pressure wrist watch includes a watch strap, the face, acting on the human body wrist, of the watch strap is provided with one or more air bags, the other face of the watch strap is provided with a watch shell embedded with the watch strap, and the watch shell is provided with a display screen; a cavity formedby the watch strap and the watch shell is internally provided with an air pump for conducting air inflation on the air bags, an electromagnetic valve for accelerating air to be discharge from the airbags, and a main control circuit electrically connected with the air pump and the electromagnetic valve separately. The blood pressure wrist watch is fashionable and beautiful in appearance, simple inmain structure and small in volume, and therefore is convenient to wear for a long time daily, and blood pressure measurement conducted based on oscillography is good in accuracy and high in stability, and it is really achieved that physical health parameters such as blood pressures, heart rates, step counts and sleep are conveniently detected anytime and anywhere, which helps users in practicinga healthy lifestyle.

The invention discloses a sleeveless blood pressure measuring device based on finger pressure oscillography. The device is characterized in that the device comprises a signal acquisition unit and a communication and calculation unit which are electrically connected, wherein a photoelectric pulse wave acquisition module and a pressure signal acquisition module are arranged on the signal acquisitionunit; a main controller and a USB serial port communication module connected with the main controller are arranged on the communication and calculation unit; the USB serial port communication moduleis connected with a display module; the photoelectric pulse wave acquisition module comprises a reflective photoelectric pulse wave sensor and a pulse wave signal preprocessing module which are sequentially connected; the pressure signal acquisition module comprises a pressure signal sensor and a processed pressure signal module which are sequentially connected; and the outputs of the pulse wave signal preprocessing module and the processed pressure signal module are both connected with the main controller. The device needs less input signals, the relationship between input signals and blood pressure levels is stable, so that the device is easy to operate and low in cost. This method is simple to operate, easy to master and practical.

Te invention relates to a blood pressure measuring system subdividing measurement objects according to a template. A pressure and pulse signal detection device is used for detecting pressure and pulse signals, and the pressure and pulse signals are transmitted to a processing unit. The system is characterized in that the processing unit comprises a processor, a controller, a classifier and a calculator, wherein the processor processes pulse signal waveforms generated in the measuring process, the pulse signal waveforms include the pulse signal waveforms generated through oscillography and stethoscopy, and pulse signals in the measuring process are recognized by recognizing the pulse signal waveforms; the controller controls and detects inflation and deflation speed in the measuring process; the classifier classifies the pulse signal waveforms according to the characteristics such as the magnitude or strength of the pulse signal waveforms, the amplitude of pressure and the inflation and deflation speed; according to the type of the pulse signal waveforms, optimal calculation parameters corresponding to the type of the waveforms are found; the calculator calculates systolic pressure and diastolic pressure corresponding to the pulse signal waveforms by using the calculation parameters of the type of the pulse signal waveforms.

The invention belongs to the technical field of arterial blood pressure measurement, and discloses a high-accuracy continuous non-invasive blood pressure measuring device with the self-adaptation calibration function. A photoelectric sensor is adopted for detecting pulse waves, reverse bias voltage is provided for a light receiving tube, the sensitivity and stability of the light receiving tube are enhanced, quite weak pulse wave signals can be detected, and the waveform quality of the detected signals can be improved; a broadband filter is adopted, and it is ensured that pulse wave shapes are distortionless; due to the technologies, correcting variables can be correctly extracted from pulse waves. The device recognizes propagation time PTT related to systolic pressure and diastolic pressure from pulse waves, and extracts various variables according to pulse wave form changes to recognize various anomalous changes of self-adaptation correction PTT in real time; on the basis of an existing mathematic model, blood pressure can be measured in a high-accuracy, continuous and noninvasive mode under the complex clinic condition, and calibration and repeated standardization can be achieved not depending on conventional methods such as cuff oscillography.

The invention belongs to concussion experiment automatization device field, especially relates to a nuclear power station pressure vessel steel progressive monitoring sample irradiation back concussion experiment automatization device. A kind of nuclear power station pressure vessel steel progressive monitoring sample irradiation back concussion experiment automatization device includes oscillography impactor, sampling track, sampling framework, alignment device set under the sampling track, bath furnace and high-low temperature controller set on the sampling track, automatic controller, radioactivity defend system, said alignment device is electromagnetism drive, gap block automatic alignment device; the bath furnace also possesses framework and automatic discharging device which guarantee sample cling rack; the radioprotection system is low lead wall defend without manipulator and window. Using the invention, precision of temperature is about +-1deg.C, alignment error is less than 0.14mm; Time of sample from furnace to clashing is 2.7s.

The embodiment of the application discloses an electronic device, a collision data processing method and a related product. The processing method comprises the following steps: collecting accelerationdata of the electronic device when the electronic device and the target object are in falling collision; generating an oscillography according to the acceleration data; extracting a waveform featureparameter of the collision oscillography; inputting the waveform feature parameter into a preset target collision vibration model to obtain the material of the target object. Through the collision data processing method disclosed by the embodiment of the application, the accuracy degree of identifying the material of the collision object when the electronic device is in the falling collision can be improved.

The invention discloses a vehicle air suspension system laboratory table. The vehicle air suspension system laboratory table comprises a main table frame, a control and display panel is installed on the side face of the main table frame, a vehicle air suspension system is installed in a framework of the main table frame, a height control valve located on the framework of the main table frame adjusts stretching and retracting of a damping spring of the vehicle air suspension system, a circuit diagram board is arranged on the control and display panel, and a digital display module is arranged on the circuit diagram board. According to the vehicle air suspension system laboratory table, the height of a suspension is controlled through the height control valve so that the height of the air suspension and the hardness of a damper can be adjusted, and therefore the working process of the vehicle air suspension system can be demonstrated truly. The vehicle air suspension system laboratory table can be used for carrying out practical teaching and practical training of all application technologies including resistance, voltage, frequency, pulse width, the duty ratio, oscillography, conduction tests and the like.

The invention discloses a soft tissue ache detecting and treating device. The device mainly comprises two parts, i.e. a detecting module and a treating module, wherein the detecting module comprises a patch electrode, a pin type electrode, an electrode clamp, an electrode connecting line, an electrode line connector, a detecting main board, an LCD (liquid crystal display) color screen, a waveform adjusting plate, a waveform adjusting knob, a waveform adjusting key and a detecting module power supply switch; the treating module comprises a treating main board, a treating control plate, a treating output plate, a temperature-control pin connecting line and a temperature-control pin. The pin type electrode detects that an electric signal enters a filtration and amplification circuit of the detecting main board through the electrode connecting line, the processed electric signal enters a single chip computer to be further processed, an acquired spontaneous potential which is processed is transmitted to the screen to be subjected to oscillography, a treating temperature parameter on the treating control plate is adjusted, a treating mode switch is turned on, the single chip computer is controlled to output low frequency PWM (Pulse Width Modulation) of, and then the connection/disconnection of a heating and driving control circuit of the temperature-control pin is controlled.

The invention discloses a control method for a color space three-dimensional oscilloscope. The control method comprises obtaining integrally adjusted values input by a user or adjusted values of a specific pixel by introducing a three-dimensional oscillography model; obtaining a new three-dimensional oscillography model by adjusting the three-dimensional oscillography model according to the integrally adjusted values or the adjusted values of the specific pixel; adjusting an original image according to the new three-dimensional oscillography model, and obtaining a new image. Due to the fact that space coordinate points and colors on the three-dimensional oscillography model correspond o color values on the original image one to one, a user can achieve the aim of directly adjusting image according to adjustment of the colors on the three-dimensional oscillography model.

The invention relates to the method of making and use of nitrogenized carbon / carbon nano tubes having nano-junctions, and the process for preparing rectification circuit and logic gate circuit formed therefrom, the method in accordance with the invention comprises the steps of, (1) preparing nitrogenized carbon / carbon tube diode using IDS P2X focused ion beam system, (2) linking the obtained nitrogenized carbon / carbon nano tube diode, the signal oscillator, the dual-channel oscillography equipment and the resisters into a half-wave rectifying circuit, (3) linking the obtained nitrogenized carbon / carbon nano tube diode and the resister into logic OR-gate and AND-gate circuit, (4) replacing the wave detection diode of the transistor radio with the obtained nitrogenized carbon / carbon nano tube diode. The obtained nitrogenized carbon / carbon nano tube diode prepared by the method of the invention has stabilized performance, good rectification property and logical function.

The invention discloses a novel electronic sphygmomanometer. The novel electronic sphygmomanometer comprises an air pump, a fixed deflation valve, a cuff, a BP 300 pressure sensor, a pre-amplification circuit, a filter circuit, a secondary amplification circuit, an Atmega16 single chip microcomputer and an LED display, wherein the cuff is connected with the air pump and the fixed deflation valve, the BP 300 pressure sensor is arranged on the cuff, a signal output end of the BP 300 pressure sensor is connected with a signal input end of the pre-amplification circuit, one path of a first signal output end of the pre-amplification circuit is connected with a first data input end of the Atmega16 single chip microcomputer, the other path of the first signal output end of the pre-amplification circuit passes through the filter circuit and then is connected with a second data input end of the Atmega16 single chip microcomputer, and a data output end of the Atmega16 single chip microcomputer is connected with a data input end of the LED display. The novel electronic sphygmomanometer has the advantages that the accurate pressure sensing can be realized, the air pressure inside the cuff can be converted into an electric signal, and the electronic measurement for the blood pressure value is realized through the oscillography principle.

The invention discloses an IO channel signal test system of a digital quantity board card in a real-time digital simulation system. The system comprises two 32-bit switch elements, two shifting modules, an RTDS digital quantity board card and indicator lamp elements. The RTDS digital quantity board card comprises a digital quantity output board card and a digital quantity input board card, wherein 16 circuits of the 32-bit switch elements are connected with 16 IOs of the digital quantity output board card in a one-to- one correspondence manner, and the other 16 circuits which are connected with a shifting module are connected with 16 IOs of the digital quantity output board card in a one-to- one correspondence manner. The digital quantity output board card is connected with the input port of the digital quantity input board card. Each IO port of the digital quantity input board card is connected with an indicator lamp element. The IO channel signal test system is in no need of other external oscillography apparatuses (wave recorder or signal generator), is reliable in realization method, and is simple and quick in operation.

The invention relates to a real-time excitation recording system, including an excitation real-time oscillography tool and an excitation record and playback tool. The excitation real-time oscillography tool is used for timely obtaining and processing recording data messages to obtain recording data of each sampling channel and carrying out oscillography and storage. The excitation record and playback tool is used for guiding in, playing back and analyzing the recording data. The real time collection capacity of an excitation controller is used as a data source, and by a network communication mode, the excitation real-time oscillography tool is used for completing extraction, connection and storage of data of each channel, and thus requirements for long-term real-time data recording are met, and control performances of the excitation controller cannot be influenced.

The invention discloses an intelligent blood pressure measuring method. The electrocardio signals or pulse wave signals of a human body acquired by an acquisition module are processed and blood pressure is predicted, according to the results from prediction, an oscillography blood pressure measurement module is started to accurately measure the blood pressure, and a prediction model is corrected according to the measurement result; the method comprises the following steps of: firstly, a pulse wave acquisition sensor and an electrocardio wire are connected with a human body; the collected electrocardiosignals and pulse wave signals are subjected to filtering treatment respectively, the transmission time PPT from a R wave point of each QRS wave to a wave peak and a wave trough of the pulse wave are calculated respectively according to the processed electrocardiosignals and pulse wave signals, abnormal conduction time and characteristic parameters are eliminated, and the data is recordedand stored. By using the method, the change of the blood pressure of a patient can be effectively tracked in time, the blood pressure of the patient can be accurately measured in real time, the abnormity of the blood pressure of the patient can be found more quickly, medical staff can be informed in time, and precious treatment and rescue time can be gained for the patient.

The invention discloses an electromechanical detection teaching experiment platform which comprises a power distribution case and an instrument case. A first motor is installed in the power distribution case through a supporting frame, a movable door is installed on one side of the power distribution case through a hinge pin, a partition plate is installed at the upper end of the power distribution case, the instrument case is installed on the upper surface of the partition plate, and the upper surface of the instrument case is sequentially divided into a step surface, an oblique surface and a case roof by arranging steps, the step surface is provided with a first groove, a patch board is installed on one side of the oblique surface, a cavity is formed in the side, close to the patch board, of the oblique surface, a convex block is arranged on the inner side of the cavity, an instrument set is installed inside the cavity, an electron oscillography and a signal generator are sequentially installed on the portion, above the cavity, of the oblique surface, the case roof is provided with a second groove, and a second motor is placed in the second groove. The electromechanical detection teaching experiment platform is simple in structure, makes stored tools orderly and is provided with multiple electrical devices.