27 results about "Pulse measurement" patented technology

The application discloses an arterial pulse signal measuring device, which comprises an expansion body, a sensor positioning part and a plurality of sensing components. The expansion body comprises a first expansion area, a second expansion area and a channel area, wherein the channel area connects the first expansion area and the second expansion area, and the length of the first expansion area in the length direction of the expansion body is less than the length of the second expansion area in the length direction of the expansion body. The sensor positioning part is located in the first expansion area, and the length direction of the sensor positioning part is substantially perpendicular to the length direction of the expansion body. The plurality of sensing components are arranged on the sensor positioning part along the length direction of the sensor positioning part. The application can improve the positioning accuracy of the sensing components for human pulse measurement by controlling the first expansion area, the second expansion area and the channel area to have different expansion sizes when inflated.

The utility model discloses a sound diagnosis instrument, relates to medical equipment technical field, the sound diagnosis instrument comprises a housing, a lift drive assembly and a bone conduction acquisition head, the housing is provided with an accommodation space, the housing is provided with a guide via hole communicated with the accommodation space; the lifting driving assembly comprises a lifting transmission part and a lifting driving mechanism which are in transmission connection, the lifting driving mechanism is arranged in the containing space, and the lifting transmission part is arranged in the guide through hole in a penetrating mode; the bone conduction collecting head is arranged outside the shell and corresponds to a collecting position used for placing the wrist of a patient, the upper end of the bone conduction collecting head is connected with the lifting transmission part, and the lower end of the bone conduction collecting head is used for abutting against the wrist of the patient so as to collect pulse data of the wrist of the patient; according to the technical scheme, the accuracy of pulse measurement can be improved.

The present application relates to the technical field of optical fiber large current sensor, and discloses a device and method for improving the pulse measurement accuracy of an optical fiber large current sensor.The device comprises a modulation signal generating unit, a step response storage unit, a pulse current storage unit and a convolution decoupling unit.For the problem of pulse measurement waveform distortion of a closed-loop optical fiber sensor, based on the convolution characteristics of a linear system and the non-reciprocal phase modulation technology, a step wave modulation signal is generated by the modulation signal generating unit to obtain the unit impulse response of the sensor, and the convolution decoupling unit is used to correct the pulse measurement result.The device does not need to rely on a large amplitude step current source, retains the original advantages of the optical fiber sensor, significantly improves the pulse current measurement accuracy, simplifies the process, and the result is reliable, and is suitable for pulse large current measurement scenes such as electrical equipment detection.

The pulsation is measured, and the pulse transit time (PTT) is measured by selecting the pulsation at two places where the displacement of the skin is large.SOLUTION: A pulsation measuring device 1 includes a radar device 2 and a signal processing device 3, and the radar device 2 is provided at least at three positions where the skin of a human body H can be scanned and scans the skin at the positions to output radar data as a biological signal. The signal processing device 3 acquires the output radar data, detects the displacement of the skin in the vertical direction at the position of the human body H scanned by the radar device 2 to specify the pulsation of the human body H, selects two places of the biological signal of the human body H where the displacement of the skin of the human body H is large, and calculates the pulse transit time (PTT) between the two places.SELECTED DRAWING: Figure 1

The invention discloses a self-driven multifunctional sensor for an artificial hand wrist. An angle-speed detection mechanism and a pulse measuring ring are integrated; the angle detection mechanism is composed of a first rotor disc, a fixed stator disc and a friction layer, the first rotor disc and the fixed stator disc can rotate relatively, and sine electric signals corresponding to angle changes are output when the wrist bends and stretches based on the friction electrification effect. The speed detection mechanism generates a characteristic cycle electric signal related to the rotating speed through friction between a second rotor disc and a fixed electrode disc with a specific electrode; the pulse measuring ring is integrated on the inner side of the watchband, and the built-in flexible piezoelectric sensing module is tightly attached to the radial artery of the wrist, so that pulse fluctuation can be directly detected; the whole device does not need an external power supply, can generate sensing signals in a self-driven mode through mechanical friction and pulse pressure, and synchronously achieves simultaneous measurement of the wrist angle, the rotating speed and the pulse signals by means of a four-channel high-speed electrical measuring instrument and a multi-channel serial port circuit.

The application provides a method and device for detecting the position of an object. The method comprises: a first device performing pulse measurement on a target object with the assistance of a second device, the pulse measurement being performed by measuring the target object by using two pulse signals; and the first device detecting the position of the target object according to the pulse measurement result. The technical solution provided by the application is beneficial to solving the measurement error caused by range ambiguity in the case of high PRF, improving the accuracy of the obtained object position information, and thus realizing high-precision target positioning.

The utility model provides a kind of monitor capable of displaying pulse breath ratio parameter, including monitor body, still including respiratory data acquisition unit and pulse measurement unit, both are connected with control unit, control unit is connected with display unit in monitor body;Respiratory data acquisition unit is configured to collect the respiratory data of patient, and it is transmitted to control unit after being converted into digital signal, control unit can obtain the respiratory frequency of patient per minute;Pulse measurement unit is configured to be able to collect the pressure signal of patient when measuring pulse, and it is transmitted to control unit after being converted into digital signal, control unit can obtain the pulse number of patient per minute according to pressure signal;Control unit divides the ratio of pulse number per minute by respiratory frequency per minute and transmits to display unit to show, the ratio of pulse number per minute by respiratory frequency per minute is pulse breath ratio parameter. The above-mentioned monitor can display pulse breath ratio parameter on monitor display interface.

The embodiment of the invention provides a microwave measurement device, and belongs to the technical field of microwave measurement. The device comprises a shielding cover plate, wherein the shielding cover plate comprises a cover plate main body, a plurality of beryllium copper elastic sheets and a plurality of conductive silica gel; wherein a plurality of mounting grooves are formed in the cover plate main body, each conductive silica gel is mounted in the corresponding mounting groove, and each beryllium copper elastic sheet is embedded in the corresponding conductive silica gel; a plurality of round holes are formed in the cover plate main body, and the diameter of each round hole is determined according to a preset cut-off frequency; the first box body is adaptively connected with the cover plate main body; and the pulse measurement circuit is arranged in the first box body, and the pulse measurement circuit is used for collecting microwave signals and performing pulse measurement on the microwave signals. According to the embodiment of the invention, the electromagnetic shielding effect of the microwave measurement device can be improved, and the accuracy of microwave signal measurement is improved.

Various embodiments of systems and methods for controlling a pulsed plasma are described herein. Pulse timing parameters (e.g., pulse on time and / or pulse off time) of a plasma generating source can be controlled based on measurement data received from a measurement device to control plasma exposure of a substrate during a sequence of dynamically controlled pulses in a plasma processing chamber. Additionally or alternatively, pulse timing parameters (e.g., pulse on time and / or pulse off time) can be applied to source power, bias power, and / or both based on measurement data received from a measurement device to control plasma exposure of the substrate. Pulse timing changes can be made in a feedforward or feedback manner.

The utility model discloses an adjustable pulse measuring device which comprises a supporting mechanism and a measuring mechanism assembled above the supporting mechanism, the supporting mechanism comprises a base, a measuring seat is fixedly installed on the front side of the top of the base, and a wrist support is fixedly installed on the top of the measuring seat, and the utility model relates to the technical field of pulse measurement. According to the adjustable pulse measuring device, through cooperation of the measuring base and the millimeter wave radar, the wrist of a patient can be supported and limited, the millimeter wave radar can accurately capture tiny vibration, caused by pulses, on the surface of the wrist, and personal errors in traditional contact type measurement are avoided; discomfort caused by physical contact is reduced, measurement work can be carried out on a patient who cannot be directly touched, the wrist direction of a person can be adjusted by means of an annular rod and a holding rod, and the device can be rapidly switched and selected when pulse measurement is carried out through the radial artery and the ulnar artery.

The invention provides a periodic pulse modulation signal calibration device and a measurement method thereof. The device comprises a conventional pulse modulation measurement module and a narrow pulse measurement module. The conventional pulse modulation measurement module is composed of a detector and an oscilloscope and is suitable for measuring pulse modulation signals with the pulse width larger than or equal to 1 s. The narrow pulse modulation measurement module is composed of a peak power probe and a peak power analyzer, and is suitable for pulse width lt; measuring a 1s pulse modulation signal; according to the invention, a conventional pulse modulation signal and a narrow pulse modulation signal can be comprehensively measured at the same time, and accurate measurement requirements of pulse modulation signals in multiple fields such as radars, communication base stations, electronic countermeasure systems and the like can be met; meanwhile, signal characteristics can be carefully captured, key parameters of pulse modulation signals can be accurately measured, meanwhile, the advanced technology and calibration method are adopted, errors are reduced, and the performance of a high-precision scene system is guaranteed.

The application discloses a kind of intelligent portable pulse wave determination watches, it is related to pulse wave determination technical field, to solve the problem of not enough convenient when determining pulse and the problem of inaccurate measurement result.The intelligent portable pulse wave determination watch, including dial and pulse sensor, the dial upper end is with upper band, the inner wall of upper band is provided with clamping block, the dial bottom end is connected with lower band one end, a plurality of clamping holes are opened in lower band, three groups of sensors are used different measurement methods to measure pulse, three groups of collected pulse measurement data can be obtained after measurement, so that data acquisition is no longer single, through the calculation of later stage, pulse data is more accurate, different data threshold is divided into multiple groups, after division, the data is divided into different levels according to grade alarm module, alarm sound can be spread out through loudspeaker, normal pulse data can be displayed in electronic display screen.

The embodiment of the invention provides an information acquisition method and device, equipment and a storage medium, which are used for solving the problems of inaccurate signal acquisition result and low capture efficiency in the prior art. The method comprises the steps that in response to the operation that a measured object aligns a pulse measurement part to a reference line and starts an acquisition button, an air pump is controlled to inflate a flexible air bag, and a target sensor set corresponding to the reference line acquires signals; if it is determined that a preset signal strength condition is not satisfied based on each signal, performing target adjustment until the signal strength condition is adjusted; determining a first sensor sub-array from the target sensor set according to the signal intensity of each signal collected by the adjusted target sensor set; determining a second sensor sub-array corresponding to the cun point position on the radial artery and a third sensor sub-array corresponding to the chi point position on the radial artery based on the target body characteristic parameters of the measured object; signals collected by the sensor sub-arrays are analyzed, and pulse information of the detected object is obtained.

This invention involves a remote monitoring system that facilitates prompt medical attention and guidance for individuals, eliminating the necessity for frequent hospital visits. Individuals who are not in a critical state or find hospital costs burdensome can choose to recuperate at home while being remotely supervised by artificial intelligence and relevant medical professionals. Prescriptions are issued as needed. Additionally, it enables individuals to have healthcare management that is tailored to their own needs and is more convenient. This application employs a smartphone camera and a blood pressure and pulse measurement device for its intended purposes. This novel technique not only reduces the amount of time and money spent by the patient, but also enables a more effective use of healthcare resources. Patients can access prompt medical care and advice without the necessity of repeated visits to a healthcare center.

This invention involves a remote monitoring system that facilitates prompt medical attention and guidance for individuals, eliminating the necessity for frequent hospital visits. Individuals who are not in a critical state or find hospital costs burdensome can choose to recuperate at home while being remotely supervised by artificial intelligence and relevant medical professionals. Prescriptions are issued as needed. Additionally, it enables individuals to have healthcare management that is tailored to their own needs and is more convenient. This application employs a smartphone camera and a blood pressure and pulse measurement device for its intended purposes. This novel technique not only reduces the amount of time and money spent by the patient, but also enables a more effective use of healthcare resources. Patients can access prompt medical care and advice without the necessity of repeated visits to a healthcare center.

The invention discloses a positive pulse measurement-while-drilling device and method for salvageable mud of an underground coal mine setting key. The positive pulse measurement-while-drilling device comprises an independent salvage head assembly, the flow switch assembly, the measuring short section, the first male head assembly, the first female head assembly, the battery barrel short section, the second male head assembly, the second female head assembly, the driving short section assembly and the pulse generator assembly are sequentially connected with one another to form an internal instrument string, and the internal instrument string is limited and fixed through the lower seat key assembly. According to the device, the servo electric cylinder is adopted as an execution component, and continuous and stable generation of positive pulses is achieved; according to the device, coaxial connector assemblies are adopted between the short sections, and the short sections can be quickly connected and transmit signals through male and female joints in an inserted mode; the lower seat key type connecting structure is adopted, the defect that in a traditional upper suspension connecting mode, fishing cannot be conducted when a drilling tool is buried is overcome, the measurement while drilling device can be rapidly recycled, and the equipment loss risk is remarkably reduced.

The invention provides an intelligent laser pulse monitoring device and method for water-jet guided laser cutting of a superhard material. The intelligent laser pulse monitoring device comprises an operation control subsystem, an ultrafast laser control subsystem, a power control subsystem, a motor control subsystem, a polarization control subsystem, a light beam alignment subsystem and an autocorrelator subsystem. The operation control subsystem realizes bidirectional data communication through multiple interfaces; the ultrafast laser control subsystem generates standard water-guided laser working wavelength laser; the power, polarization and light beam alignment subsystem realizes accurate power regulation and control, horizontal polarization guarantee of incident light and accurate light beam alignment; the motor control subsystem drives an optical element to realize precise adjustment; and the autocorrelator subsystem completes laser pulse measurement. The problems that a traditional autocorrelator is tedious in operation, depends on artificial experience, is poor in dynamic adaptability and the like are solved, the measurement efficiency and precision are remarkably improved, the operation threshold is lowered, and the method can be widely applied to ultrafast laser research and precision machining and meets the intelligent manufacturing requirements of ultrahard and brittle materials.

The invention describes a method for measuring a person's pulse using a hearing system, which comprises at least one first hearing instrument (1) with an electroacoustic first input transducer (22), wherein a first bone-sound signal (24) is received at one ear of the person by the first input transducer (22), thereby generating a first input signal (26), and a pulse frequency (fp) is determined based on the amplitude profile of the first input signal (26). The invention further describes a corresponding hearing system configured for pulse measurement according to the method.

A system and method of training a subject to alter their heartbeat, including playing sounds with auditory prompts having a timing with a repeating pattern, and measuring pulses from the subject's heart to generate heart pulse measurements representing the subject's heartbeat. A visual representation of the heart pulse measurements is displayed, and the subject is guided to synchronize their heartbeat with the repeating pattern of the auditory prompts.

1. The name of the design product: dynamic graphical user interface of heart rate and pulse measurement of electronic device. 2. The use of the design product: an electronic device. 3. The design points of the design product: the graphical user interface. 4. The picture or photo that best shows the design points: design 1 interface change state diagram 3. 5. Design 1 is designated as the basic design. 6. The use of the graphical user interface: the interface is used to show the dynamic measurement change process of the electronic device on user's heart rate data and pulse data respectively. 7. The human-computer interaction mode of the graphical user interface: in design 1 and design 4, the main view is the main interface displayed by the electronic device, the user wears the electronic device in the main view, the electronic device starts the pulse measurement function, and the interface automatically jumps to interface change state diagram 1, interface change state diagram 2, interface change state diagram 3, interface change state diagram 4 and interface change state diagram 5 in turn. In design 2 and design 5, the main view is the main interface displayed by the electronic device, the user wears the electronic device in the main view, the electronic device starts the heart rate measurement function, and the interface automatically jumps to interface change state diagram 1, interface change state diagram 2, interface change state diagram 3 and interface change state diagram 4 in turn. In design 3 and design 6, the main view is the main interface displayed by the electronic device, the user wears the electronic device in the main view, the electronic device starts the pulse measurement function, and the interface automatically jumps to interface change state diagram 1, interface change state diagram 2, interface change state diagram 3 and interface change state diagram 4 in turn. In design 7 to design 10, the main view is the main interface displayed by the electronic device, the user displays the main view interface by pressing the key on the side of the device with fingers, and the white line in the center of the interface changes with the change of the user's heart rate. 8. Other circumstances that need to be explained: the design 4 to design 6 requested protection contains color.

The application discloses a SiC MOSFET hard switching loss measurement method and system without current sensor, cancels current measurement on the basis of a double-pulse measurement method, and obtains a current waveform by analyzing voltage waveform variation characteristics. Measurement of a drain-source voltage is very simple, does not cause influence on layout and volume of a converter, and measurement time is very short. The method can be popularized to any topology with an equivalent half-bridge commutation loop.

The application relates to the technical field of servo motor control, and discloses an intelligent coal preparation equipment servo motor control system and method based on multi-model self-adaption, which comprises the following steps: acquiring rotation speed information at T moment, and acquiring an abnormality evaluation coefficient at T+N moment; determining whether the encoder is in an abnormal state at T+N moment according to the abnormality evaluation coefficient; recording the measured pulse number at T+N moment, performing numerical correction on the measured pulse number according to pulse measurement characteristic data and a pre-configured pulse measurement correction model, determining the actual output rotation speed of the servo motor based on the numerically corrected measured pulse number; determining whether a rotation speed abnormality event exists, inputting a first target input rotation speed and the actual output rotation speed into a pre-configured rotation speed correction model according to the rotation speed abnormality event, and obtaining a second target input rotation speed; the application is beneficial to improving the rotation speed control precision of the servo motor and shortening the response time length of the servo motor.

The invention discloses a pulse per second time difference measuring system and method based on a field programmable gate array. Relates to the technical field of time measurement. A clock management module of a system generates two clock signals with opposite phases; the sampling model is used for sampling the input pulse per second twice in the same clock period based on the double data rate trigger so as to obtain a sampling signal of the pulse per second; the timestamp generation module is used for respectively generating a coarse count value and a fine time interpolation when an edge signal appears, and splicing the coarse count value and the fine time interpolation into a timestamp; and the time difference calculation output module calculates a difference value of the two generated timestamps to determine a time difference measurement result. The pulse per second is sampled twice in the same clock period through the double data rate trigger, and the measurement precision is improved under the condition that the clock period is not changed; and based on coarse time counting and fine time interpolation, wide-range measurement is realized, and the problem that high measurement precision and wide measurement range are difficult to consider in an existing pulse per second measurement method is solved.

This invention discloses a data acquisition device for an energy meter based on pulse acquisition, comprising a pulse signal conditioning module, a photoelectric sensor, a multi-channel parallel acquisition unit, and a hybrid communication gateway. The output of the pulse signal conditioning module is connected to the pulse output interface of the energy meter. The photoelectric sensor is used to output pulse signals to the parallel acquisition unit, and the multi-channel parallel acquisition unit is used to send pulse calculation data to the hybrid communication gateway. This invention eliminates the need to replace the energy meter, reducing costs and construction time. Electromagnetic interference is eliminated through photoelectric isolation and RC filtering circuits. An HC32L196K8TA microcontroller is used for pulse counting and power-off protection. It supports RS-485 / 4G-CAT.1 dual-mode transmission and is compatible with photoelectric retrofitting of mechanical meters, direct acquisition from electronic meters, and 485 communication acquisition. A single concentrator supports pulse acquisition management of 48 meters and can be expanded through the 485 interface, reducing the pulse measurement error rate.

The invention discloses an energy device single-particle burning pulse measurement system and method, and belongs to the technical field of anti-radiation effect test and reinforcement of energy devices. The system is composed of femtosecond pulse laser equipment, a three-dimensional mobile platform, a probe station, an energy device, a direct current bias power supply, a bias and sampling network and a data acquisition module. By arranging a three-terminal current sampling branch and a drain voltage sampling branch, the system can synchronously acquire multi-parameter transient waveforms under the same trigger. According to the system design, it is ensured that real bias is kept, meanwhile, transient current is prevented from being recharged to the direct-current bias power supply, and therefore the test safety is improved, and high-fidelity transient waveform data are provided. The system has high measurement bandwidth and low distortion, can accurately measure the single-particle burning transient behavior of the energy device, and is suitable for single-particle burning mechanism research and anti-radiation evaluation of multiple types of energy devices.

The embodiment of the application provides a microwave measuring device, and belongs to the technical field of microwave measurement. The device comprises: a shielding cover plate, the shielding cover plate comprises a cover plate body, a plurality of beryllium copper springs and a plurality of conductive silicon rubbers; wherein the cover plate body is provided with a plurality of mounting grooves, each conductive silicon rubber is mounted in the corresponding mounting groove, and each beryllium copper spring is embedded in the corresponding conductive silicon rubber; the cover plate body is provided with a plurality of round holes, the diameter of each round hole is determined according to a preset cutoff frequency; a first box body, the first box body is adaptively connected with the cover plate body; a pulse measurement circuit, the pulse measurement circuit is arranged in the first box body, and the pulse measurement circuit is used for collecting a microwave signal and performing pulse measurement on the microwave signal. The embodiment of the application can improve the electromagnetic shielding effect of the microwave measuring device, and further improve the accuracy of the microwave signal measurement.

The present disclosure describes a unique method and system for combining 3D ONS modeling with an elastography measurement (shear wave pulse measurement at a fixed depth) to capture strain values within the ONS wall tissue giving a more reliable assessment of both prior and current TBI, preferably without maneuvers to artificially increase intracranial pressure (ICP). Imaging for the 3D modeling and the elastography utilizes he same H-transducer to obtain B-Mode and shear wave pulse images. The combined data is used in a discriminatory Machine Learning system to provide a discriminatory outcome of TBI.