84results about How to "Realize the measurement function" patented technology

The invention provides a variable-focus monocular and binocular vision sensing device comprising a mirror image type optical system, a high-precision bearing holder, an image acquisition system, a digital information processing device and other parts. The variable-focus monocular and binocular vision sensing device can guarantee that a variable-focus image sensor (a CCD (Charge Coupled Device) or an analog video camera) mounted on the high-precision bearing holder can be accurately located at a certain required monocular vision preset station, and can automatically regulate the focus to the required value so as to perform monocular vision measurement or guidance work; the variable-focus monocular and binocular vision sensing device also can accurately locate the image sensor at the unique determined binocular vision preset station, and can automatically regulate focus to the required value, and thus, the image sensor and the mirror image type optical system jointly form a binocular vision sensing system, and sequentially, the function of binocular vision guidance or measurement is realized; and moreover, the variable-focus monocular and binocular vision sensing device can realize automatic switching between a monocular vision station and a binocular vision station through programming of the digital information processing device according to the task requirements, so as to realize the functions such as monocular and binocular vision measurement, guidance or obstacle avoidance.

The invention discloses an ankle joint device of a lower limb rehabilitation training robot, which is suitable for a serial structure and belongs to the field of rehabilitation medical equipment. The ankle joint device realizes triple safety protection, namely control of the speed and motion position range of a motor 13 by software and limit of the safety limit motion range of an ankle joint motor 13 by a travel switch 13 and a mechanical spacer pin 1. The ankle joint motor 13 is arranged in a foot box 11 and a foot box 19; a synchronous belt pulley 3 and a synchronous belt pulley 15 transfer motion; a synchronous belt tensioning mechanism 16 is arranged; an ankle joint bracket 14 is fixed on an internal ankle joint protective plate 4 and an external ankle joint protective plate 18; a foot pedal 19 can rotate relatively to a hinge pin at a position B of the ankle joint bracket 14; data measurement of positive and negative torques of feet is realized by a pressure sensor 7 and a pressure sensor 9; and a sensor sleeve 6, a sensor sleeve 8 and a sensor sleeve 10 can pre-fasten the upper sensor 7 and the lower sensor 9 respectively.

The invention discloses an intelligent electronic type voltage transformer. The intelligent electronic type voltage transformer comprises a far-end module, an amorphous iron core, an optical fiber composite insulator, an insulating oil layer, a resistance-capacitance voltage divider, an optical fiber and a combination unit. According to the intelligent electronic type voltage transformer, the iron core is made of amorphous materials, a resistance-capacitance voltage division principle is used as a design principle, and a transformer body is formed by pouring insulting silicone rubber on the amorphous iron core, a primary winding and a secondary winding. According to the intelligent electronic type voltage transformer, the iron core is made of amorphous alloy, so that the intelligent electronic type voltage transformer has high saturated magnetic induction and low loss, the weight and the size of the intelligent electronic type voltage transformer can be reduced greatly, and efficiency can be improved greatly. In addition, the intelligent electronic type voltage transformer has low noise, is easy and convenient to install and use, does not need maintaining in an operation process, is light in weight, high in accuracy, good in linearity and wide in measuring range, overcomes the defects that a conventional electromagnetic voltage transformer is narrow in frequency band, slow in response and the like, and has practical significance to transformation of and improvement to existing electrical equipment, and the ability to resist electromagnetic interference is enhanced.

Provided is a nuclear power plant radioactive exudation monitoring system which comprises an airborne radioactive exudation monitoring system. The airborne radioactive exudation monitoring system comprises a heating unit. The heating unit is used for heating gases in a part, outside a chimney, of a sampling pipeline where an aerosol and iodine monitor in the airborne radioactive exudation monitoring system is located, and a part, outside a chimney, of a sampling pipeline where an aerosol and iodine sampler is located. The nuclear power plant radioactive exudation monitoring system may prevent aerosol and iodine steam condensation caused by a decrease in ambient temperature and may increase aerosol and iodine acquisition efficiency. Further, a compressor is arranged on the upstream of an inert gas sampling bottle so as to increase gas concentration. In a high radioactivity monitoring system, a lead shielding device is arranged outside the inert gas sampling bottle and the aerosol and iodine sampler in order to improve protection of workers against radiation. A liquid radioactive exudation monitoring system is improved, simplified in structure, and decreased in fault links. A flowmeter is provided in order to compute total discharge activity.

The invention relates to an anemometry method of a northern dipper of aerological sounding. The method comprises the following steps: receiving a northern dipper satellite signal, and inputting the signal into a signal amplifier by a northern dipper signal receiving antenna in a northern dipper sonde and a receiver; amplifying the northern dipper satellite signal and sending the signal to a correlator by the signal amplifier to acquire the delay time of the signal emitted by a northern dipper satellite from the northern dipper satellite to the northern dipper signal receiving antenna and the receiver; carrying out altitude computation by a northern dipper anemometry unit directly; obtaining the real-time potential height of a northern dipper anemometry unit by the combined computation of the temperature, the humidity, the air pressure and injection initial altitude which are obtained by real-time sounding in the northern dipper sonde, and converting the real-time potential height into a height so as to realize the real-time altitude computation of the sonde; and realizing the positioning information of the northern dipper receiver of the sonde by the attitude obtained by combining the real-time computation of the temperature, the pressure and the humidity in air, and sending the positioning information to a singlechip to obtain the position and the wind speed of a northern dipper anemometry sounding device in space.

The invention provides a directional gamma logging-while-drilling tool. A surface information processing system comprises a signal demodulation surface processing box, a well depth tracking measurer, surface information processing software and special graphics drawing software. A MWD (measurement while drilling) system comprises a mud signal pulser, a drive device, an inclinometry sub and an inclinometry battery tube. A directional gamma measurement system mainly comprises a special gamma battery tube and a directional gamma measurement sub. The directional gamma logging-while-drilling tool has the advantages that conventional wired measurement-while-drilling technical services can be performed; the tool with a gamma imaging function is capable of recognizing stratum information change, especially interfaces of stratums; the unit measurement sub can be hooked randomly according to function requirements; the directional gamma measurement function in high-speed rotation can be implemented; and the tool has a unique mechanical damping design.

The invention discloses an integrated electric contact liquid level and liquid temperature measurement sensor. An electric contact and phi2 armored thermocouple electrodes are adopted in the sensor. A plurality of armored thermocouple electrodes are longitudinally arranged on a metal framework and are arranged in a stainless steel protection sleeve integrally; and an electrode lead is led out from a bundle in an upper sealed end plug of the protection sleeve and connected with secondary meters such as a millivolt thermometer and an electric contact water level meter. The integrated electric contact liquid level and liquid temperature measurement sensor is inserted into a high-temperature and high-pressure container to directly measure a real liquid level and a real liquid temperature, so that the sensor is small in measurement error, high in resolution and assembled and used easily and has a compact structure. The sensor is used for measuring the liquid level and the liquid temperature of relevant high-temperature and high-pressure containers of a nuclear reactor, such as a reactor core, a spent fuel battery, a pressure stabilizer and a steam generator, and also can be used for measuring the liquid level and the liquid temperature of the conventional high-temperature and high-pressure containers.

The invention discloses an overvoltage protection configuration system of a unified power flow controller. The system comprises a direct-current overvoltage protection device, a valve overvoltage protection device and a sub-module overvoltage protection device. The relation of protection action constant values can be expressed by a relational expression that (N*Vov2)>(N*Vov1)>Uov1>...>Uovm>Unom. The cooperative relation of protection action delay can be expressed by a relational expression that Tvo2<Tvo1<Tuo1...<Tuom. Lightning arresters and by-pass switches which are in bridge joint are configured at two ends of the circuit-side winding of a series transformer; grounding lightning arresters are respectively configured at the near bus-bar end and near circuit end of the circuit-side winding of the series transformer; grounding lightning arresters are configured at the alternating-current power grid side and converter side of a parallel transformer; and grounding lightning arresters areconfigured at the alternating current-direct current side and valve bottom of a converter. With the overvoltage protection configuration system of the invention adopted, the converter can act reliably when the system is disturbed or the sub-modules of the converter fail, and therefore, the reliability of the unified power flow controller can be improved.

The invention discloses a method and a device for measuring a soil penetration characteristic based on instantaneous acceleration detection, specifically a method and a device for measuring soil penetration resistance and then obtaining soil physical properties. The device mainly comprises an acceleration detection device, a handle, a guide rod, impact weights, an adapter sleeve, a penetrating rod, a guide support and the like. The penetrating rod penetrates into soil, the acceleration detection device is used for detecting acceleration change in the descending process of the whole device, and after the whole operation process is finished, data can be read in a computer for further analysis processing. The initial velocities when the penetrating rod penetrates into the soil are different by changing parameters in the descending process, so that the velocities of a conical head reaching the same depth are different, and then the relation between mathematical model discussion velocity and penetration resistance can be established, a series of characteristic parameters of soil are researched, and the device has significance for guiding agricultural production. Speed-changing penetration, automatic recording and data storage are realized, and the device is high in measuring precision and high in work efficiency.

The invention discloses a compressor blade runner surface profile tolerance detecting device and a compressor blade runner surface profile tolerance detecting method. The compressor blade runner surface profile tolerance detecting device comprises a support, wherein a positioning and clamping device, a standard surface block and a differential meter frame are arranged on the support, the positioning and clamping device is used for fixing compressor blades, the standard surface block is used for being compared with the compressor blades, the differential meter frame is used for detecting runner surface profile tolerance of the compressor blades, the differential meter frame comprises a differential meter frame body, an upper measuring rod and a lower measuring rod which can move up and down are arranged on the differential meter frame body, the end part of the upper measuring rod is provided with a measuring head used for measuring runner surfaces of the compressor blades, the end part of the lower measuring rod is provided with a measuring head used for measuring surfaces of the standard surface block, a dial indicator used for displaying compressor blade runner surface profile tolerance deviation is arranged on the differential meter frame body, and a meter-correcting block used for carrying out zero setting on the dial indicator is arranged on the support. The compressor blade runner surface profile tolerance detecting device and the compressor blade runner surface profile tolerance detecting method achieve accurate measurement of the blade runner surface profile tolerance, have small error and high efficiency, and solve the detection difficulty of blade processing site.

The invention belongs to the insect motion bionic technique, relating to the improvement on the detecting device of insect motion parameters. The invention comprises: a platform (5), a high-speed camera (2), a background lamp (4), and a computer (7), and it is characterized in that: a combination four-sides mirror (1) is arranged under the high-speed camera (2), while each side of it has one plane external mirror (3), and each optical path has one background lamp (4). The invention can uses one high-speed camera to realize the detecting function of four sensors to reduce the system cost significantly, and effectively solve the problem of detecting blind area and shading when detecting the motion of high swinging-frequency insect.

A precise shaft dynamic torque measuring instrument relates to a shaft measurement technology and solves the problem that shaft friction torque can not be accurately measured and the test scope is small. The precise shaft dynamic torque measuring instrument comprises a structure adjusting subsystem, a pitching and yaw detection shaft subsystem, a positioning installation subsystem, a lateral roller detection shaft subsystem and a support and detection platform subsystem and measures friction torque of a fake load on vertical shaft direction. A torque motor drives a torque sensor to rotate through a toothed shaft, the displacement is adjusted on the vertical and horizontal direction, and a handwheel is rotated to move a leading screw nut mechanism vertically or horizontally along a linear guide rail. A rotary table drives a vertical sliding bench fixed together with a connection board to realize rotation of changing angle at certain level. A counterweight block is added on a fixed pulley on the vertical sliding bench to prevent extra torque, and verticality precision is ensured.

A wearable patch includes a stretchable and permeable substrate, a temperature sensing unit mounted in the stretchable and permeable substrate, wherein the temperature sensing unit includes a first electrode configured to contact a user's skin, and a temperature sensor in thermal contact with the temperature sensor and configured to measure the user's skin temperature. The wearable patch includesa second electrode and a third electrode respectively attached to the stretchable and permeable substrate, a circuit substrate on the stretchable and permeable substrate, and a battery configured to supply power to the control circuit and the temperature sensor. The control circuit can select a first mode for measuring a user's skin temperature and a second mode for charging the battery by the charging station via the first electrode, the second electrode, and the third electrode.

The invention discloses a visual measuring device and measuring method for a curved plate-rotor gap of an air pre-heater. The visual measuring device comprises a video collecting unit and a light supplementing mechanism that are arranged on a mounting body. In addition, the visual measuring method includes: each visual measuring device is calibrated before usage and a correspondence relationship between a displacement increment and a pixel increment is found out; during the application process, the visual measuring devices are installed, a camera is used for acquiring a dual-line laser image of a target area and transmits the image to an image processor, the image processor feeds back a gap value obtained by processing to a video monitoring unit, and the gap value is monitored in real time; and when the gap value exceeds a normal range, the system carries out alarming automatically for warning, so that the operator is able to adjust the arc plate position timely based on the monitoringpicture. According to the invention, the gap picture and the gap size information can be observed in real time and thus the operator can adjust the gap between the arc plate and the side of the rotorof the air pre-heater conveniently, so that the operating efficiency of the set is improved and the maintenance and replacement become convenient.

The invention discloses a particle size distribution measurement method and system based on a light scattering field. The method comprises the following steps: emitting incident light to a to-be-measured area in a to-be-measured environment; collecting scattered light signals of all particles in the area within an observation angle range on one side of the incident light incident direction by adopting a curved reflector; shaping the scattered light signals by adopting an optical lens, and then collecting an independent scattered light signal corresponding to each angle in an observation anglerange by adopting a photoelectric converter; and based on the scattered light signals at all angles, obtaining particle size distribution of the particles through reverse deduction calculation. According to the invention, only the curved reflector, the optical lens and the photoelectric converter are adopted; the system is simple in structure and low in cost, can achieve independent collection ofscattered light signals at all angles in the observation angle range, obtains a large-range high-angular-resolution scattering angle spectrum, provides scattered light signals with multiple channels for accurately solving the particle size distribution, achieves the function of accurate particle size distribution measurement of particles, and is simple in structure, low in cost and high in practicability.

The invention discloses a substation secondary system based on master units and subunits. The system is characterized comprising a GPS clock, a monitoring background and a plurality of cross-interval master units. Each cross-interval master unit is connected with a plurality of single-interval subunits. Each single-interval subunit is externally connected with an electronic/conventional transformer, a switch and a knife switch. The cross-interval master units and the single-interval subunits are all connected with the monitoring background. The cross-interval master units, the single-interval subunits and the monitoring background are all connected with the GPS clock. According to the system provided by the invention, the problems that according to the intelligent substation, the number of devices is high, the configuration is complex and the construction and investment cost is high are solved; and the problems that according to the traditional substation, the electrical loop is complex and the cable consumption is high are solved. The system has the advantages that the fault removal time is short, the reliability is high, the electrical loop is simple and the maintenance is convenient.

The invention discloses a real-time spectrum analyzer tracking generator design method. 100 MHZ reference serves as phase demodulation reference of a first local oscillator and a tracking generator local oscillator loop; a first local oscillator signal is divided into two paths through a coupler, wherein one path of local oscillator signal passes through an amplifier 1 and then, reaches a reception down-conversion channel, and the other path of local oscillator signal passes through an amplifier 2 and then, reaches a frequency mixer; the reception down-conversion channel outputs an Intermediate-frequency signal to a high-speed ADC; and the high-speed ADC carries out digitization on an analog signal, and then, carrying out signal processing analysis. A tracking generator local oscillator output signal realizes mixed output or direct output with the first local oscillator signal through selection of switches 1 and 2, and then, passes through an amplifier 3, a low-pass filter 2 and a radio-frequency attenuator in sequence to serve as tracking generator output. On the basis of an original hardware architecture of a real-time spectrum analyzer, the method increases a tracking generatorand output channels thereof, conveniently realizes spectrum analyzer all-band tracking generator design, enables the spectrum analyzer to have a tracking generator measurement function, and greatly expands the application range of the real-time spectrum analyzer.

The invention relates to an optical measurement device with a light beam control function, belongs to the technical field of optical non-linear measurement devices, solves technical problems of high cost, complex structure, large measurement error and the like of a multi-band optical non-linear measurement device in the prior art and further enlarges the measurement spectrum range. The optical nonlinear measurement device comprises a laser collimation system, a beam splitter, a focusing optical system, an electric displacement platform, a diaphragm, a first power meter, a main control computer, a data acquisition instrument, a second power meter and a first lens. The optical non-linear measuring device can measure a non-linear absorption coefficient and a non-linear refraction coefficientof a material in real time, is wide in measurement wavelength spectrum band, simple in principle, high in measurement precision and low in cost, and has a function of measuring the film system damagethreshold of an optical element.

The invention provides a control method of an air conditioner and the air conditioner. The control method of the air conditioner comprises the following steps of detecting whether users exist around the air conditioner or not; and if yes, controlling a height measuring device of the air conditioner to measure the heights of the users, and controlling a display device of the air conditioner to display a measurement result. The control method of the air conditioner has the advantages that when the condition that users exist around the air conditioner, the height measuring device at the upper part of the air conditioner is controlled to automatically measure the heights of the users, and the measurement result is displayed after the measurement result is measured to realize measuring functionof the users, and meanwhile, convenience for enabling users to know and record the measurement result is brought.

The invention provides a cardiopulmonary endurance measurement method and system based on oxygen uptake calculation. The method comprises the steps that the resting heart rate of a user is collected through intelligent wearable equipment before a test; in the test process, the real-time heart rate and walking speed are collected, the maximum oxygen uptake is obtained according to a VO2Max calculation formula, and the cardiopulmonary endurance is measured and evaluated through the maximum oxygen uptake. Expensive measuring equipment is not needed, the motion state of a user is automatically detected, that data are real and effective, the cost of manual guidance and measurement in the cardio-pulmonary endurance test project can be reduced, the functions of the intelligent wearable equipmentare further expanded, and the practicability of the intelligent wearable equipment is improved.

The invention relates to a method and system for measuring reverse friction of a vehicle steering system. The method for measuring the reverse friction of the vehicle steering system comprises the steps that a rotary disc is fixed with wheels of a vehicle to be detected, driving force is applied to the rotary disc, the rotary disc drives the wheels to rotate, the rotating angle of the wheels is recorded when the wheels do not rotate any more under the driving force, and the reverse friction force of the vehicle steering system under the rotating angle of the wheels is obtained through the driving force and the resistance force borne by the rotary disc in the rotating process. Compared with a traditional vehicle steering reverse friction torque measuring method, according to the scheme, manpower is saved, and meanwhile steering detection can be carried out on the vehicle with high efficiency and high precision. In addition, equipment in the scheme is high in operability and low in cost, measured data can provide supports for the steering reversal performance of a product, and inconsistency of product quality is avoided.

The invention discloses a contact-type displacement sensor structure based on 3D printing and a making method thereof. The contact-type displacement sensor structure comprises a base structure; one end of the base structure is provided with a second fixing hole and the other end is provided with a guide hole; a cantilever structure is connected above the base structure; the second fixing hole in the base structure is flush with a first fixing hole at the tail end of the cantilever structure; the tail end of the cantilever structure is provided with a strain gauge structure; the head end of thecantilever structure is provided with a limiting hole; a probe passes through the guide hole in the base structure; and the upper end of the probe is located in the limiting hole and the lower end isused for contact measurement. The making method adopts a combination of a photocuring process and an ink-jet printing process, conductive ink is directly sprayed on the resin cantilever structure, and aking of a three-dimensional composite structure sensor is realized; a desktop photocuring printer is used to make the sensor structure; and the contact-type displacement sensor structure based on 3D printing and the making method thereof have the advantages that the processing cost is low, the processing cycle is short, the production is simple and the structure is optimized and convenient andthe like.

The invention belongs to the electric system auxiliary tool field, and particularly relates to a multifunctional interface type insulation rod which can be used as a scale ruler, a high altitude electricity test rod, a long pole sickle, an wind meter and a mobile phone signal amplifier. The multifunctional interface type insulation rod comprises a drag hook type work head, an insulating bar and a grab handle, and thread holes and screws matched with the thread holes are arranged on the lower end face of the work head, the upper end face and the lower end face of the insulating bar and the upper end face of the grab handle. The multifunctional interface type insulation rod is characterized in that scale marks are engraved on the outer faces of the insulating bar and the grab handle, and the work head further comprises an electricity test rod work head, a sickle work head, a wind meter work head and a signal amplifier work head. According to the multifunctional interface type insulation rod, the functions of measuring height, testing voltage, cutting braches, measuring wind speed and amplifying mobile phone signals are added based on functions of a common insulation rod, and functional diversification of the multifunctional interface type insulation rod is achieved.