32results about How to "Quickly and accurately measure" patented technology

The invention provides a system for measuring blood pressure from a patient that includes: 1) an optical module featuring systems for measuring signals from the patient, serial communication, and power management; 2) an external computing device configured to attach to the optical module, supply power to the optical module, and receive information from the optical module through the system for serial communication; and 3) an algorithm, operating on the external computing device, that processes information received through the system for serial communication to determine the patient's blood pressure.

A borehole inspection device and method of using the same to measure the condition of the bottom extent of a borehole, the system having a head unit assembly with top and bottom sides and including at least one downwardly extending force sensor configured to measure a reaction force applied to the at least one sensor as it engages a bottom extent of the borehole, the inspection device being configured to be lowered into a borehole and to bring the sensor(s) into contact with the bottom extent wherein continued downward movement of the head unit creates the reaction force on the sensor(s) to determine at least one of a location of an associated debris layer, a bearing capacity of the associated debris layer, the thickness of the associated debris layer, the location of an associated bearing layer and / or the bearing capacity of the associated bearing layer.

A fluid warmer is disclosed. The fluid warmer includes a support surface, a heating element configured to selectively heat the support surface, and a switch assembly extending through the support surface. The switch assembly includes a switch, a movable switch plate, and a thermocouple. The switch has at least two states, one of which indicates the presence of an item on the support surface. The movable switch plate operably links to the switch to move the switch between the states and further includes a contact surface that contacts an item placed on the support surface. One or more thermocouples are embedded in the movable switch plate below the contact surface. The movable switch plate comprises a material having a thermal conductivity that permits the thermocouple(s) embedded in the switch plate to measure a temperature of an item placed on the support surface within a predetermined period of time.

An inspection system to measure the condition of at least the wall of a ground opening, such as a borehole opening, an excavation, and a slurry wall, the inspection system comprising a head unit configured to be lowered into an associated borehole and having a lowering mount configured to be operably and selectively joined to an associated lowering unit to facilitate the lowering of the head unit into the associated borehole during a data collection phase, the data collection phase including at least one of a lowering phase wherein the head unit is lowered in the associated borehole toward an associated bottom extent of the borehole by the associated lowering unit and a raising phase wherein the head unit is raised in the associated borehole away from the associated bottom extent, at least one set of test data being collected concerning one or more physical characteristics of the associated borehole during the data collection phase, the head unit comprising an internal measurement system and a sensor arrangement having a plurality of sensors facing radially outwardly of a head axis that is generally parallel to at least a portion of the an associated borehole axis, the plurality of sensors allowing the head unit to be moved during the data collection phase without rotation about the head axis, the plurality of sensors at least partially producing the at least one set of test data collected during the data collection phase.

A method and system are provided for testing antenna systems using position determination, orientation determination, test pattern analysis using a variety of factors and equipment including positions and orientation of antenna(s) under test at specific points and signal processing systems.

The invention relates to a determination method of aroma components in an electronic cigarette aerosol, and belongs to the technical field of assay determination. According to the method, a Cambridge filter is used for collecting grain phase compositions in the electronic cigarette aerosol, absorption bottles collect gas phase compositions in the electronic cigarette aerosol in cold trap conditions, then ultrasonic extraction is carried out by using dichloromethane, and deionized water is combined to carry out liquid-liquid back-extraction, the interference of large amounts of alcohol in the aerosol is eliminated, finally, the gas chromatography mass spectrometry is combined to perform qualitative and quantitative analysis. With the adoption of the determination method of the aroma components in the electronic cigarette aerosol disclosed by the invention, loss or decomposition of volatile aroma components in the electronic cigarette aerosol can be effectively avoided, multiple volatile aroma components can be simultaneously analyzed, the repeatability is better, the sensitivity is high and the operation is simple, and the interference of matrix components and solvents can be avoided, so that the determination method of the aroma components in the electronic cigarette aerosol has certain advantages in detection of the volatile aroma components in the electronic cigarette aerosol.

A method of determining imbalance in a vector signal modulator. First and second channels of a vector signal modulator are stimulated with a multi-tone signal having a power versus frequency spectrum having numerous of frequencies. In response to the stimulation, an output of the vector signal modulator is measured. The first and second channels are simultaneously stimulated with a multi-tone signal having essentially the same characteristics as the one used when separately stimulating the channels. Data collected from both the separate and simultaneous stimulations are used to calculate imbalance versus frequency of the vector signal modulator. Alternatively, two channels of a vector signal modulator are simultaneously stimulated with first and second multi-tone signals. The first and second multi-tone signals have tones at main frequencies and at first and second offsets thereto, respectively. Output measurements are then made and imbalances are calculated.

An inspection system to measure the condition of at least a wall of a ground opening, the inspection system having a head unit for lowering into a borehole during a data collection phase wherein at least one set of test data is collected concerning one or more physical characteristics of the borehole during the data collection phase, the head unit having an internal measurement system and a sensor arrangement with a plurality of sensors facing radially outwardly of a head axis that is generally parallel to at least a portion of a borehole axis, the plurality of sensors allowing the head unit to be moved during the data collection phase without rotation about the head axis, the plurality of sensors at least partially producing the at least one set of test data collected during the data collection phase.

An inspection system to measure the condition of at least a wall of a ground opening, the inspection system having a head unit for lowering into a borehole during a data collection phase wherein at least one set of test data is collected concerning one or more physical characteristics of the borehole during the data collection phase, the head unit having an internal measurement system and a sensor arrangement with a plurality of sensors facing radially outwardly of a head axis that is generally parallel to at least a portion of a borehole axis, the plurality of sensors allowing the head unit to be moved during the data collection phase without rotation about the head axis, the plurality of sensors at least partially producing the at least one set of test data collected during the data collection phase.

The invention discloses an oil cylinder connecting pipe coaxiality measuring gauge, which comprises a length measurer and a positioning body which is cylindrical as a whole, wherein a measuring hole is formed in the middle of the positioning body and is coaxial with the positioning body, a transverse hole is formed in the positioning body and is formed in the horizontal direction, the transverse hole is communicated with the measuring hole, a pressure head and a first compression spring are arranged in the transverse hole, one end of the first compression spring abuts against the hole wall ofthe transverse hole, the other end of the first compression spring abuts against one end of the pressure head, and the other end of the pressure head partially extends into the measuring hole; and thepositioning body further comprises a longitudinal hole formed in the positioning body, and the end, away from the measuring hole, of the transverse hole vertically extends upwards to form the longitudinal hole. The oil cylinder connecting pipe coaxiality measuring gauge aims to solve the technical problem that no special coaxiality detection equipment is available in the prior art, so that the coaxiality of a connecting pipe and a bearing mounting hole can be conveniently and quickly detected.

A system and method for measuring dynamic properties of a structure, and for using the measured dynamic properties to assess the dynamic performance of the structure. The system and method can separate the measured response into low amplitude and high amplitude data to reduce the influence of outside forces and mass. The system and method measures dynamic properties of the structure such as frequencies of resonance, mode shapes, and non-linear damping, and uses them in an analysis of the structure to compare the dynamic response of the structure with the anticipated properties of a structure built according to applicable building code requirements. The system and method thus quantifies a risk of failure of the structure by determining a risk ratio that compares an as-is condition of the structure with an as-designed condition of the structure.

The invention relates to a container weighing apparatus which comprises an I-shaped hanger, supports, weighing sensors and wireless transmission modules, wherein the supports are respectively mounted on four corners of the hanger, each support is provided with a supporting arm connected with a base into a whole, the upper part of each weighing sensor is connected with the supporting arm through an upper pin shaft and a joint bearing, the lower part of each weighing sensor is connected with a floating seat through a lower pin shaft and the joint bearing, a rotating shaft fixed with a suspender is connected with the floating seat through a plane bearing, four wireless transmission modules are respectively mounted on the hanger and a signal output line of each weighing sensor is connected with the signal input end of the respective wireless transmission module. In the process of lifting the container, the invention can fast and accurately weigh the four corners of the container to judge whether the container is eccentric or not and can improve the lifting safety and efficiency.

A system for measuring object points on a three-dimensional object using a planar array of a multi-camera group, and a measuring method, are provided. The system is useful in the field of optical measuring technologies. The method includes establishing a measuring system of at least one four-camera group wherein digital cameras form a 2×2 array; matching an image object point acquired by the camera group; upon matched object point image coordinates, calculating coordinates of spatial locations of respective object points; upon coordinates of the spatial locations, calculating other three-dimensional dimensions of the measured object to be specially measured to form three-dimensional point clouds and establish a three-dimensional point clouds graph for performing three-dimensional stereoscopic reproduction. Here, full matching is performed for all measured points of the measured object by directly translating, superimposing, and comparing, point-by-point, the pixel points of measured images in X and Y-axes directions. In this way a three-dimensional object may be reproduced.

A fluid warmer is disclosed. The fluid warmer includes a support surface, a heating element configured to selectively heat the support surface, and a switch assembly extending through the support surface. The switch assembly includes a switch, a movable switch plate, and a thermocouple. The switch has at least two states, one of which indicates the presence of an item on the support surface. The movable switch plate operably links to the switch to move the switch between the states and further includes a contact surface that contacts an item placed on the support surface. One or more thermocouples are embedded in the movable switch plate below the contact surface. The movable switch plate comprises a material having a thermal conductivity that permits the thermocouple(s) embedded in the switch plate to measure a temperature of an item placed on the support surface within a predetermined period of time.

Provided is a container for packing bulk cargoes for transportation, a transportation state monitoring system and a monitoring method. The container for packing the bulk cargoes for transportation includes a container body and an adjustable stowage inner chamber arranged in the container body, and the adjustable stowage inner chamber is adjustable in volume and used for accommodating and fixing the bulk cargoes. The position information and speed information of the container for packing the bulk cargoes for transportation are collected by a speed measurement manager in real time in the transportation process, the temperature information and humidity information of the container for packing the bulk cargoes for transportation are collected by an in-container state monitoring terminal in real time in the transportation process, by comparing the actual transportation speed with the optimal transportation speed of the container for packing the bulk cargoes for transportation, the transportation speed of the container for packing the bulk cargoes for transportation is adjusted in real time, and when the temperature and humidity of the container for packing the bulk cargoes for transportation exceed the set threshold values, an alarm is given out in time. The state parameters of the container for packing the bulk cargoes for transportation in the transportation process can be monitored quickly and precisely and adjusted and controlled in time, the safety, reliability and economy of the transportation of the container for packing the bulk cargoes for transportation are improved, and losses caused by environmental uncertainty and other factors in the transportation process are avoided.

Disclosed is a method for measuring inside dimensions of shoes. In this method a foot model can be obtained after the processes of a plastic filling material being filled into the shoe, shaping, being taken out from the shoe and being restored; then more accurate data of the inside dimensions of the shoe can be obtained by measuring the foot model. Further disclosed is a measuring tool able to be used in the present measuring method. By using the measuring method and the measuring tool, errors encountered when going shopping for shoes can be reduced to the maximum degree by a simple operation, such that the problem that an ordinary consumer could buy a pair of perfect fitting shoes only if he / she tries them personally can be solved.

A laser ranging binocular for distance detection includes a first lens barrel having a first eyepiece and a first objective lens, and a second lens barrel having a second eyepiece and a second objective, lens with the first and second lens barrels rotatable relative to each other. A laser transmitter in the first lens barrel is operable to transmit a laser beam through a first optical splitting unit, the propagated light is directed through a first prism and through the first objective lens towards a target object. Laser light reflected from the target object is received by the second objective lens and directed to a second prism, which directs the received light to a second optical splitting unit and to a laser receiver. A processor in communication with the laser transmitter and receiver measures elapsed time and calculates a distance to the target.

The invention relates to a container weighing device, which includes an I-shaped hanger, a support, a load cell and a wireless transmitting module. The four corners of the hanger are respectively equipped with supports, and each support has a Support arm, the upper part of each load cell is connected with the support arm through the upper pin shaft and joint bearing, the lower part of each load cell is connected with the floating seat through the lower pin shaft and joint bearing, and the rotating shaft fixed with the boom is connected with the floating seat through the plane bearing To connect, four wireless transmitting modules are respectively installed on the hanger, and the signal output lines of each weighing sensor are connected to the signal input ends of the respective wireless transmitting modules. In the process of hoisting the container, the invention can quickly and accurately weigh the four corners of the container to judge whether the container is eccentric, and can improve the safety and efficiency of hoisting.

The invention discloses a device for measuring an adhesive phase of wet mud. The device is characterized by comprising an experiment table (1), wherein a wet mud box (2) is arranged on the table-board of the experiment table (1); a pressing piston (3) is arranged in the wet mud box (2); by virtue of a bottom opening of the wet mud box (2), wet mud in the box is in contact with the table-board of the experiment table; the wet mud in the wet mud box (2) can be pressed by the pressing piston (3); the wet mud box (2) is connected to one end of a pull rope (4), and the other end of the pull rope (4) bypasses a pulley (5) and is vertically downwards connected to a scale (6); and a weight (7) is arranged in the scale (6). The device disclosed by the invention is simple in structure, low in cost and high in reliability, the adhesive phase of the wet mud can be rapidly and accurately measured, and a theoretical basis is provided for drying treatment of the wet mud. The wet mud is rapidly heated in the wet mud drying process, so that the solid content of the wet mud exceeds the adhesive phase in an extremely short time, the wet mud is prevented from being adhered into a drying cavity or a pipeline, blockage is avoided, and normal operation of a drying process is guaranteed.

A welding heat circulation curve measuring instrument of the invention discloses a measuring instrument that eliminates the need for drilling a hole to embed a thermocouple and is capable of effectively supporting two welding plates so that the welding plates can be reliably and effectively fixed to avoid the problem that the two welding plates are uneven after being welded. The welding heat circulation curve measuring instrument is characterized in that a supporting frame consists of a top box and four supporting rods, the supporting rods are vertically placed on four corners of the bottom ofthe top box at one end respectively, a supporting plate is placed below the top box, four corners of the supporting plate are separately connected to the four supporting rods, the supporting plate and the top box are parallel to each other, a straight slot is respectively formed on two ends of the top box, a sliding groove is respectively formed on two inner sides of the top box, two ends of thesliding grooves communicate the straight slots on two ends of the top box, multiple second cylinders are placed in the middle of the supporting plate in equal distances, and are distributed along a direction from one side to the other side of the top box, and a supporting spring is arranged on piston rods of the second cylinders in a sleeving manner.

An inspection system to measure the condition of at least a wall of a ground opening, the inspection system having a head unit for lowering into a borehole during a data collection phase wherein at least one set of test data is collected concerning one or more physical characteristics of the borehole during the data collection phase, the head unit having an internal measurement system and a sensor arrangement with a plurality of sensors facing radially outwardly of a head axis that is generally parallel to at least a portion of a borehole axis, the plurality of sensors allowing the head unit to be moved during the data collection phase without rotation about the head axis, the plurality of sensors at least partially producing the at least one set of test data collected during the data collection phase.

The invention discloses a smoke amount measuring and control device and a smoke amount measuring and control method of a semi-closed ferroalloy submerged arc furnace. The measuring and control device comprises a processor which is connected with an oxygen content sensor through an oxygen content analyzer. A probe of the oxygen content sensor is inserted into a flue or a chimney of the semi-closed ferroalloy submerged arc furnace. The processor is connected with an electric energy meter of the semi-closed ferroalloy submerged arc furnace through an AD conversion module. The processor is connected with an electric control system of the semi-closed ferroalloy submerged arc furnace through a drive relay. The smoke amount measuring and control device measures and controls the smoke amount according to the oxygen content of smoke and the current power of the submerged arc furnace, sensitivity is high, and the problem that measured smoke amounts are different due to the fact that a probe of a currently-used measuring device is different in probe sampling points and insertion positions in the chimney of the probe are different can be effectively solved.

The invention discloses an apparatus for measuring the pressure angle of a cam by using double rollers to automatically searching for a normal line. The apparatus comprises a frame, a follower mechanism, the cam and a pressure angle measuring mechanism. According to the invention, the pressure angles of disc-form cams with any contours can be rapidly and accurately measured, the size of the pressure angels of the contours of the cams can be displayed in real time, the size and the position of the maximum pressure angle can be accurately found, and by using the apparatus, students can parse the pressure angles and can also have a better understanding of the concept of the pressure angles.

The invention discloses a quantitative detection instrument for the content of melamine in liquid milk, which comprises a laser device, a light-dividing device, a focusing mirror, a reagent bottle holder for fixing a reagent bottle, an optical fiber coupler, and a spectrum detection device, wherein the reagent bottle holder is provided with a light transmission hole; the laser emitted by the laser device orderly passes through the light-dividing device, the focusing mirror and the light transmission hole and then is focused in a liquid milk sample in the reagent bottle ;, an optical signal which is reflected backward illuminates the light-dividing device through the light transmission hole and the focusing mirror; and the optical signal reflected by the light-dividing device passes through the optical fiber coupler through a conductive light path and then enters the spectrum detection device for detection. The quantitative detection instrument has the advantages of simple and compact structure, convenient use, and low cost, reduces the requirement on light path alignment of detection instruments, does not need performing light path adjustment, has short detection time, also reduces the cost for using consumptive materials at the late stage, and can quickly and accurately detect the content of the melamine in the liquid milk.

Disclosed is a coordinate measuring apparatus for measuring distortion and or dimensional variations in one or more planar substrates. In one aspect, the coordinate measuring apparatus comprises a base assembly comprising a base plate having a top surface configured to receive the planar substrate; and a multi-dimensional array of image capturing devices, each image capturing device having a field of view and being positioned in a plane parallel to and in overlying registration with at least a portion of the top surface of the base plate. The plurality of image capturing devices are oriented perpendicular to the plane of the multi-dimensional array such that the field of view of each image capturing device can capture at least a portion of the top surface of the base plate. Further, each of the plurality of image capturing devices can be selectively positioned at predetermined coordinates defined within the plane of the multi-dimensional array.

The invention discloses an apparatus for measuring the pressure angle of a cam by using double rollers to automatically searching for a normal line. The apparatus comprises a frame, a follower mechanism, the cam and a pressure angle measuring mechanism. According to the invention, the pressure angles of disc-form cams with any contours can be rapidly and accurately measured, the size of the pressure angels of the contours of the cams can be displayed in real time, the size and the position of the maximum pressure angle can be accurately found, and by using the apparatus, students can parse the pressure angles and can also have a better understanding of the concept of the pressure angles.

A measurement system for positioning accuracy of a robotic arm includes the robotic arm, a computing device, a robotic arm controlling device, a first magnetic element and a second magnetic element. The robotic arm controlling device is electrically connected to the robotic arm and the computing device. The first magnetic element is disposed on a robotic arm. The second magnetic element is disposed on a fixed platform. One of the first magnetic element and the second magnetic element is electrically connected to the computing device. The robotic arm controlling device controls the robotic arm to move the first magnetic element above the second magnetic element to generate a magnetic field. The computing device is configured to calculate a plurality of movement error information of the first magnetic element in the magnetic field, and count the plurality of movement error information to obtain a positioning accuracy of the robot arm.

An inertial measurement unit includes a substrate having MEMS gyroscopes arranged on the substrate as opposing pairs. The gyroscopes of each opposing pair are arranged on opposite sides of an axis of rotation of the substrate and each opposing pair has a central axis that intersects an axis of rotation of the substrate. A processor receives a rotational measurement from each gyroscope, compares the measurements from gyroscopes of each opposing pair, determines a mean or median rotation value for each opposing pair, and compares the mean or median rotation value with a threshold value. The processor assigns a weight to the mean or median value for each opposing pair and determines a rotation of the cuboid inertial measurement unit based on the mean or median value for each opposing pair and the respective weight for the mean or median value for each opposing pair.

The invention discloses a smoke amount measuring and control device and a smoke amount measuring and control method of a semi-closed ferroalloy submerged arc furnace. The measuring and control device comprises a processor which is connected with an oxygen content sensor through an oxygen content analyzer. A probe of the oxygen content sensor is inserted into a flue or a chimney of the semi-closed ferroalloy submerged arc furnace. The processor is connected with an electric energy meter of the semi-closed ferroalloy submerged arc furnace through an AD conversion module. The processor is connected with an electric control system of the semi-closed ferroalloy submerged arc furnace through a drive relay. The smoke amount measuring and control device measures and controls the smoke amount according to the oxygen content of smoke and the current power of the submerged arc furnace, sensitivity is high, and the problem that measured smoke amounts are different due to the fact that a probe of a currently-used measuring device is different in probe sampling points and insertion positions in the chimney of the probe are different can be effectively solved.