727 results about "Survey meter" patented technology

A pulse measuring apparatus comprises a pulse sensor unit having a pulse sensor, a pulse measuring instrument having a display section for displaying a pulse number, and an arm wearing band fixed to the pulse measuring instrument and to which the pulse sensor unit is attached so as to be capable of adjusting its position in a longitudinal direction. A radio transmission section is disposed in the pulse sensor unit and a radio reception section is disposed in the measuring instrument, whereby data can be radio-transmitted from the pulse sensor unit to the measuring instrument. The data to be radio-transmitted is a pulse detection signal of the pulse sensor of the pulse sensor unit, or a pulse number obtained by calculation-processing the pulse detection signal by a signal processing section of the pulse sensor unit.

A handheld apparatus for measuring fish, game, and the like is provided and includes a scale, a camera, and a length measuring device. The scale includes a support member that extends outwardly from the apparatus housing, and a display that is visible through the housing. The support member is configured to suspend an object therefrom for weighing via the scale, and the display is configured to display the weight of an object suspended from the support member. The length measurement device is configured to measure the length of an object and the display is configured to display the length of an object measured by the length measurement device. The camera includes a lens, an image sensor configured to capture images obtained via the lens, and a camera display. The camera display displays an image of an object taken by the camera with weight and/or length information for the object.

The invention discloses an ultrasound bone density measuring and analyzing system. The system comprises an ultrasound parameter measuring apparatus, a communication interface and a human machine interaction device, wherein the ultrasound parameter measuring apparatus comprises transmitting unit consisting of a pulse generator, a high-voltage pulse excitation module and a transmitting probe, an ultrasound receiving unit consisting of a receiving probe, a simulation pretreatment module, a gain adjustable amplifier, a phrase comparator, a high-speed ADC and an asynchronous FIFO, and a central processor, a power supply control module and a structural body. the human machine interaction device controls the ultrasound parameter measuring apparatus through the communication interface to measure the width of a calcaneus of a detected person, the transmission speed of an ultrasound wave in the calcaneus, broadband ultrasonic attenuation to calculate the bone intensity indexes and the bone density, so a medical report can be made according to diagnostic standards of osteoporosis and a special data base can be built for long term use. The system adopts wet or dry coupling and other technologies to improve the precision and accuracy of measure and has the advantages of easy carrying, low cost, no damage caused by radiation and can be use in long term monitoring of bone condition of the detected person.

An object of one aspect of the present invention is to obtain a measurement value in accordance with the condition of a crystalline lens of an examinee's eye. An apparatus for measuring ocular axial length includes: a measuring unit which irradiates measurement waves toward a fundus of the examinee's eye, and calculates the ocular axial length of the examinee's eye based on detection signals obtained from reflected waves including waves reflected from the fundus; and a determining unit which acquires reflection information related to an anterior segment of the examinee's eye, extracts reflection signals corresponding to a reflection object between a cornea and a posterior capsule of a crystalline lens based on the acquired reflection information, and determines whether the examinee's eye is a phakic eye or an IOL eye based on the extracted reflection signals.

The invention discloses a white light interference optical profile meter, comprising a macro/micro two-stage driving and displacement metering device in a vertical direction, white light interference displacement sensors and a universal table, wherein, the white light interference displacement sensors are fixed on the driving and displacement metering device fixed on an upright post, and the upright post is fixed on a vibration isolating table facet on which the universal table is placed. The wide-range three-dimensional optical profile meter based on white light interference and vertical scanning technology realizes rough and fine two-stage driving respectively by a servo motor and piezoelectric ceramic, so as to drive the white light interference displacement sensors to integrally move, adding the servo motor in vertical displacement can enlarge the measurement range, and vertical scanning is accomplished by the piezoelectric ceramic. The measurement of macro/micro displacement is completed by using the same diffraction grating metering system. The profile meter is capable of automatically searching for interference fringes and realizing the three-dimensional profiles of wide-range non-contact measurement planes and curved surfaces, and has the characteristics of high measurement precision, large measurement range, low cost and the like.

The invention relates to a portable physiological parameter measuring instrument which comprises a human body trigger induction unit, a measuring circuit connected with the human body trigger induction unit, a control module connected with the measuring circuit and an acceleration sensor. The acceleration sensor is used for sending awakening signals to the control module when the acceleration is larger than a preset threshold; the measuring circuit comprises a contact sensing unit, and the control module sends starting signals to the contact sensing unit when receiving the awakening signals. The contact sensing unit starts a human body trigger sensing function after receiving the starting signals, and if the contact sensing unit detects during the preset duration that the human body trigger induction unit senses trigger signals of the human body, the contact sensing unit sends working mode switching signals to the control module to enable the control module to be switched from a standby mode to a working mode and begin to perform physiological parameter measurement. According to the portable physiological parameter measuring instrument, awakening is finished by utilizing the time period from the time when a device is taken up to the time when users adjust the holding postures, and quick starting measurement without key starting and without waiting is achieved.

The invention relates to a pulse rate measuring method and a ring type pulse rate measuring meter by adopting the method. In the method, a finger pulp is taken as the position for measuring a pulse signal, beam with specific wavelength is radiated to the skin surface of the finger pulp, a transmission and/or transmitted ray intensity signal is adopted through a photoelectric receiver, and the pulse rate can be calculated according to the alternating component of the intensity signal varying in pulse cycles. The ring type pulse rate measuring meter comprises a pulse wave collecting device and a pulse wave processing and displaying device, wherein a central control and signal processing module is arranged in the pulse wave processing and displaying device; and a control signal end of the central control and signal processing module is connected with the pulse wave collecting device in a wired or wireless mode. The ring type pulse rate measuring meter has the characteristics of simple structure, smart appearance and strong interference resistance, is convenient to wear, and can meet the wearing requirement of people in daily life health-care and daily exercise.

The invention relates to an automatic defocusing compensation human eye aberration Hartmann measuring instrument, which consists of a light source, a light beam wave filter system, a light beam matching system, a hole diameter cutting element, a photodetector, a computer system and a fixed part, wherein the fixed part consists of a human eye support frame and a front group of focusing objective lens, the computer system comprises an automatic defocusing compensation system, the automatic defocusing compensation system consists of a defocusing regulation control module and an image analysis control module, the hole diameter cutting element and the photodetector form a Hartmann wave-front sensor, and other parts are placed in a case of the measuring instrument for forming a movable part capable of transversely moving fore and aft expect the fixed part and the computer system. The focusing operation is realized through the fore-and-aft movement of the movable part corresponding to the fixed part. The defocusing regulation control module collects Hartmann light spot images in different positions. The image analysis control module analyzes the geometrical characteristics of the Hartmann light spots for determining the optimal defocusing compensation amount to realize the automatic defocusing compensation on human eyes to be detected, and an aberration measuring instrument completes the measurement of the human eye aberration on the basis.

The invention discloses a dual optical path type scattered water quality turbidity measurement apparatus. The water quality turbidity measurement apparatus comprises a signal processing unit and a measurement chamber, wherein a light source is arranged in the measurement chamber, the turbidity measurement apparatus is characterized in that a semi-reflecting translucent mirror is arranged below the light source, a collimating lens is arranged below the semi-reflecting translucent mirror, a first detector is arranged in the measurement chamber, the light source is received by the first detector after being reflected by the semi-reflecting translucent mirror and then is transmitted to the signal processing unit, the light source is irradiated into a detected water sample through the collimating lens after being subjected to transmission by the semi-reflecting translucent mirror; a converge lens and a second detector are arranged in a direction vertical to a parallel light, light rays, scattered by 90 DEG by the detected water sample, of the parallel light are received by the second detector trough the convergence lens and are transmitted to the signal processing unit, the convergence lens and the second detector are arranged in the detected water sample, the collimating lens is arranged above the detected water sample, and the signal processing unit is used for processing received signals so as to obtain a turbidity value of the detected sample. The turbidity measurement apparatus disclosed by the invention is simple in structure, small in volume and relatively high in measurement precision.

Disclosed is an automatic blood pressure measuring instrument and method designed to obtain a pulse wave signal and electrocardiogram (ECG) signals from a pressure sensor and an ECG monitor, to analyze correlation between both signals, to operate a maximum blood pressure and a minimum blood pressure based on the analyzed data, and to output the operated result to a display. The automatic blood pressure measuring instrument comprises a pressure sensor for obtaining a pulse wave from a wrist of the subject, a pulse wave signal processing section for amplifying, filtering and noise-removing the pulse wave applied from the pressure sensor, an electrocardiogram monitor for measuring a systolic blood pressure and a diastolic blood pressure and converting the measured results into electrical signals, an electrocardiogram signal processing section for amplifying, filtering and noise-removing the converted electrocardiogram measurement signals applied from the electrocardiogram monitor, an A/D converting section for converting the AC signals, which are applied from both the pulse wave signal processing section and the electrocardiogram signal processing section, into DC signals, a controlling section for comparing and analyzing the pulse wave signal and the electrocardiogram signals applied through the A/D converting section to operate the blood pressure of the subject, and a display for displaying the blood pressure of the subject operated at the controlling section.

Disclosed is a mover spectrum measuring apparatus, which is able to discriminate an object being measured more reliably by relieving the influences of an environmental light on photographic data by a spectrum sensor mounted on a mover such as a vehicle. A spectrum sensor capable of measuring wavelength information and optical intensity information is mounted on a vehicle, so that an object being measured around the vehicle is discriminated on the basis of the spectrum data relating to the observation light detected by the spectrum sensor. The mover spectrum measuring apparatus comprises an illumination device for making variable the featuring quantity of at least either the wavelength range of the observation light or the optical intensity of each wavelength, and controls the featuring quantity varying mode by the illumination device through an illumination controller on the basis of the control value according to an environmental element.

The invention discloses a non-contact object size and distance image measuring instrument, which comprises modules including a zoom lens, a CCD (charge coupled device) image sensor, a laser light source, a DSP (digital signal processing) image processing board card, a miniature touch displayer, a power supply module, an instrument panel, a portable instrument case and the like. The measuring instrument firstly obtains images of objects to be measured, then, the images to be processed are subjected to denoising enhancing and interpolation super-resolution processing, and then, light spot detection and pixel calibration are carried out; after a user selects measuring objects, a system segments the measuring objects, and then, the size of the objects and the distance between the objects are calculated; the instrument can simultaneously measure the distance between any two points; a measuring result is finally sent to a display to be displayed in a marked way. The measuring instrument has the advantages that the configuration of the laser light source is flexible, the pixel calibration is simple, the calculation on the sizes and the distance of the objects is accurate, the manufacturing difficulty is low, the portability is realized, the measurement is accurate, the measurement efficiency is high, and the application range is wide.

This invention relates to the method of measuring factory harmonic wave and measuring apparatus. The measuring of factory harmonic wave is measuring the system harmonic wave of electric equipment, filter factory harmonic wave source, and the factory harmonic wave that connected with the power supply system. The distribution of harmonic wave process and harmonic wave current level time changes of harmonic wave source electric equipment will be measured, and the filtering parameter of the harmonic wave source electric equipment and systematic equipment network that includes compatible power and compatible running with power supply system, filter and the mutual bus bar electric equipment will also be measured. The factory that uses this method can directly measure and manage the system harmonic wave of the factory harmonic wave. This invention synchronizing measuring the harmonic current and harmonic voltage drop level time changing of the common junction and its bus bar, and the distribution feature of the common junctions.

The invention relates to an intelligent laser three-dimensional information measurement instrument which comprises a scan positioning system, a video monitoring system, a driving system, a computer control system and a wireless transmitting and receiving system, wherein the scan positioning system comprises a GPS positioning system used for determining the position of an observation point, a laser ranging sensing system used for measuring the straight-line distance between the observation point and a target point, an electronic compass used for measuring the horizontal rotating angle of the laser ranging sensing system, and an oblique sensing system used for measuring the elevation angle of the laser ranging sensing system. The intelligent laser three-dimensional information measurement instrument has multiple functions and is low in manufacturing cost, capable of conducting measurement automatically, continuously and efficiently, capable of conducting collimation and dynamic object tracking through remote video monitoring in all weathers and feeding back data to rear staff in real time after scanning, simple and efficient in work.

The invention relates to a model prediction method of radiation intensity that is generated by the high power short-wave launching aerial mounted on the complex platform. The method is a proportion iconic model of 1:n according to the real contracture of the short wave antenna and the complex platform; The model prediction measurement system of the short-wave launching aerial radiation intensity is set; the short wave antenna of the iconic model is connected with the model prediction measurement system of the short-wave launching aerial radiation intensity; the signal output from the radiofrequency signal source of the measurement system is fed to the short wave antenna of the iconic model via the radio-frequency power amplifier, the model field intensity measured by the field intensity indicator is acquired, the data processing module software of the testing control computer calls the calibration data and the model field intensity data to calculate the radiation intensity of the real aerial. On the condition of low transmitting power in lab, the radiation intensity that is generated by the high power short-wave launching aerial mounted on the complex platform could be predicted precisely by the calibration of measurement system and the processing of module aerial radiation intensity data.

The invention relates to a non-contact metering device of object surface topography reconstruction, in particular to a three-dimensional topography mark comparison measuring instrument for criminal investigation evidence such as bullets and tool marks identification. The comparison measuring instrument comprises a base (1), an upright column (2), a cradle head (5), a microscope camera (3) and a microscopic projector (4). The comparison measuring instrument provided by the invention has the advantages that the field of vision is variable through performing non-contact measurement to an observed sample; the resolution is adjustable; an electrically and manually combined multi-dimensional focusing cradle head and multiple clamps are adopted, so that the requirements of clamping and adjusting measurement posture of various detecting materials are satisfied; the structure is reasonable, the performance is stable and the operation is simple and convenient.

A method and a system for processing a reflected microwave signal generated by a radar level a gauge system arranged to transmit microwaves towards the material in the tank, and receive a reflection of said microwave signal as a tank signal. The tank signal is processes by a plurality of processes, each process being adapted to determine a process variable in a specific region of the tank, each specific region corresponding to a predefined propagation distance range. Such multi-processing of the received tank signal has the advantage that each process can be optimized to that particular region of the tank. More specifically, a process concerned with a particular region of tank only needs to treat a portion of the tank signal.

The invention discloses a flue gas flow velocity measuring device and method. The flue gas flow velocity measuring device comprises two groups of light emitting systems and light receiving systems which are respectively arranged at two sides of a flue, wherein each light emitting system comprises an LED light source and a collimating lens located on an exiting light path of the LED light source; each light receiving system comprises a focusing lens and a photoelectric detector located on a transmittance light path of the focusing lens; light beams emitted by the LED light source are collimated to parallel light beams through the collimating lens and then to pass through the flue, then the parallel light beams are received by the focusing lens and sent to the photoelectric detector; and a digital display is connected outside the photoelectric detector through a data processing system. In the invention, a high frequency flash signal caused by temperature fluctuation can be measured, anda low frequency flash signal caused by smoke dust concentration fluctuation can also be processed at the same time; a light flash signal can be obtained under the condition that the turbulent flow ofa flue refractive index is very weak (light velocity and flow meters can not be adopted); and the flue gas flow velocity measuring device has the characteristics of high measurement precision, non-interference, convenience for installation, broader application range and the like.

A pulse-taking signal sensor probe comprises a base, as well as a rotary shaft support seat and an elastic beam arranged on the base, wherein a shaft hole and a rotary shaft arranged in the shaft hole are arranged on the rotary shaft, the middle part of a linkage piece is hinged on the rotary shaft support seat by the rotary shaft and can pivot by surrounding the rotary shaft, the linkage piece comprises two parts, namely a horizontal arm and a longitudinal arm, one end of the horizontal arm is connected with the lower end of the longitudinal arm together, one end of an optical fiber bragg grating is fixed on the upper end of longitudinal arm, the other end of the optical fiber bragg grating is fixed at the top end of an elastic beam; and the probe is arranged at the other end of the horizontal arm of the linkage piece and passes through a through formed in the base and extend outside the base. An optical fiber pulse-taking signal sensor acquisition system comprises a broadband light source with optical fiber coupling output, and a spectral measurement instrument, which are simultaneously connected with one side of an optical fiber coupler, the other side of the optical fiber coupler is connected with the pulse-taking signal sensor probe by optical fiber, and the spectral measurement instrument is electrically connected with a computer.

The invention discloses a measurement method and a measurement instrument of a revolution body part, wherein the measurement instrument comprises a base, a vertical post and an optical measurement head, wherein the vertical post is fixed on the base; the optical measurement head is movably assembled on the vertical post through a vertical orientation mode; a working platform which is used for placing and revolving a part is correspondingly arranged on the base below the optical measurement head; the working platform comprises a revolution platform and an angle displacement regulating platform which are arranged from bottom to top; the angle displacement regulating platform comprises a first angle displacement platform and a second angle displacement platform which respectively comprise a first deflection platform and a second deflection platform; and the deflection axes surrounded by the first deflection platform and the second deflection platform in rotation are vertical mutually and are both parallel to a plane of a light curtain of the optical measurement head. For the angle displacement regulating platform in the measurement instrument provided by the invention, by adopting the deflection surrounding the deflection axes parallel to the plane of the light curtain of a parallel light source through driving the two angle displacement platforms respectively by the revolution driving mechanism, the cross coupling regulation of the deflection angles of the working platform is realized, the space posture of a workpiece can be captured accurately, and the accurate positioning and measurement to the part are ensured.

The invention relates to a tilt fiber bragg grating (TFBG) liquid level change measuring instrument which comprises a light source, a light-way divider, a TFBG, a spectrum analyzer, a photoelectric detector and a single mode fiber for connecting, wherein the TFBG is prepared by using a phase mask side radiation technology adopting the steps of tiling a template and writing the template into a hydrogen-carrying single mode fiber through ultraviolet excimer laser; the TFBG is arranged on the liquid level of a measured container, and the upper end of the TFBG is required to extend out of the liquid level of the measured container. A TFBG sensor is used as a sensing element by the fiber liquid level measuring instrument which combines the advantages of a conventional fiber bragg grating and the intrinsic properties of the TFBG into a whole and has the advantages of low cost, simple manufacture process, high precision, good repetitiveness, and the like; and in addition, the TFBG liquid level change measuring instrument has high temperature resistance, corrosion resistance, high measurement precision, interference resistance, easy reuse and suitability for direct and continuous measurements in liquid environment with various refractive indexes.

The invention discloses a 3 nanometer-20 micrometer aerosol particle size distribution measuring apparatus, and belongs to the technical field of environment aerosol measurement. The measuring apparatus integrates an aerodynamic particulate matter size spectrometer, a nano-particulate matter differential electromobility analyzer, a nano-particulate matter condensation nucleus particle counter, a sub-micron particulate matter differential electromobility analyzer and a sub-micron particulate matter condensation nucleus particle counter, and is characterized in that a voltage/flow control box is used to provide hierarchical voltages and sheath gas to the two particulate matter analyzers; a data acquisition card is used to synchronously acquire impulse signals of the particulate matter size spectrometer and the two particle counters; and a measurement control system is used to control the voltage output and sheath gas flow of the voltage/flow control box, process and analyze the impulse signals input to the data acquisition card, and output a two-dimensional diagram showing a 3 nanometer-20 micrometer particle size distribution spectrum and a three-dimensional diagram containing a time series. The measuring apparatus disclosed by the invention has the beneficial effects that the measurement is precise, the apparatus operation is simple, and the apparatus can provide technical support for atmosphere combined pollution and nanometer scientific research.