170results about How to "Accurate and reliable measurement" patented technology

The invention relates to a dual-algorithm mode farm machinery field operation area calculating system and method. The system comprises a vehicle-mounted terminal device and a server module. The vehicle-mounted terminal device is internally provided with a GPS module for positioning the position of a farming machine during an operation driving process, a GPRS module for sending together position data and a time corresponding to each position point to the server module through a wireless network and receiving a calculating result of a server, and a controller for controlling the GPS module and the GPRS module, controlling a display result, and controlling historical data storage and scheduling, wherein the GPS module, the GPRS module and a display are connected with the controller, and the GPRS module communicates with the server through a GPRS wireless network. The server module is responsible for calculating a related result. According to the invention, the modes of two algorithms, i.e., a finite element method and a locus method, are simultaneously utilized, the actual land area of a farm filed operation area and the area of the farming machine driving in the operation area are calculated, operation cost for payment is given according to calculated areas, and at the same time, the result of a driving locus is stored in the form of a picture, so that farming machine drivers and farmers can know detailed driving situations conveniently.

A method, named Juran Hydrocarbons Index (JHI), for measuring the overall competitiveness of an oil and gas facility (i.e. platform, pipeline, marine terminal, processing terminal, refinery, or LNG plant) that incorporates operational efficiency and effectiveness. The method describes a plurality of performance metrics that reflect measurable properties of an oil & gas organization. It further calculates the percentage deviation of these metrics relative to the corresponding industry or peer group average and assins weights of importance in the form of gap cofficients. Finally, it integrates all the individual performances into a mathematical equation to provide a numerical value (an index) of overall hydrocarbons competitiveness.

The invention discloses a granulation production line for composite material machining. The granulation production line for composite material machining comprises a mixing module for mixing materials, a kneader module for kneading the mixed materials, and a granulator module for granulating the kneaded materials; a mixing discharge port of the mixing module is connected to a kneader feed port of the kneader module through a pumping pipeline; a feeding pump is mounted on the pumping pipeline; a kneader discharge port of the kneader module is connected to a granulator feed port of the granulator module through a blanking pipeline; the mixing module includes a first feed port and a second feed port; a first weighing machine and a second weighing machine are respectively arranged on the first feed port and the second feed port; a first batching tank and a second batching tank are respectively connected to the first feed port and the second feed port through feeding pipelines; and a feed port weighing machine is arranged on the kneader feed port of the kneader module.

An inspection system for inspecting an interior surface of a pipeline has a frame adapted to travel in the pipeline and an imaging means for imaging a selected portion of the interior surface of the pipeline. The imaging means has a field of view and is mounted in a rotatable manner on the frame. The inspection system has with a two-dimensional pattern generator for generating a two-dimensional pattern projection. The generator is mounted with the imaging means to project the two-dimensional pattern projection in the field of view thereof. The imaging means provide images of the selected portion of the internal surface comprising the two-dimensional pattern projection for monitoring a perpendicularity of the optical axis of the imaging means with respect to the selected portion of the interior surface of the pipeline thanks to a shape of the two-dimensional pattern projection prior to inspection of the internal surface.

The invention discloses an integrating sphere type light-catalyzed reaction measuring system which is originally designed aiming at the problem that the most basic evaluation parameters respectively represent apparent quantum yield in the light-catalyzed reaction process and can theoretically research and solve the actual efficiency evaluation in the light-catalyzed process. According to functions, the system mainly comprises a light system part and a hydrogen system part which are organically coupled, wherein in the light system part, a light inputting and measuring system comprises a light source, a light path, a monochromator and an integrating sphere and a spectrometer; in the hydrogen system part, a light-catalyzed reaction and measuring system comprises a reaction vessel, a liquid storage vessel, a peristaltic pump, a gas differential detector and the like. The system realizes the synchronous measurement of reactive light absorbing property and the performance for producing hydrogen by light catalysis and can deeply research the light-catalyzed reaction process.

The invention discloses a low-temperature curing silver/silver chloride slurry for a flexible bioelectrode and a preparation method thereof. The silver/silver chloride slurry comprises, by weight, 38-70wt% of silver/silver chloride powder and 30-62wt% of an organic carrier, wherein the silver/silver chloride powder is composed of 40-90wt% of silver powder and 10-60wt% of silver chloride powder. The prepared flexible bioelectrode is low in square resistance, good in adhesion, good in electrode potential stability, high in anti-interference capability and good in biocompatibility, specific shapes can be formed for different use environments, the cost is low, and mass production is easy. The obtained flexible bioelectrode can highly fit the human tissue, especially the skin, can meet the wearing requirements of different parts of the human body, can measure more accurate and reliable bioelectrical signal data, and can be applied to the fields of biosensor electrodes, ECG electrodes, electrochemical reference electrodes, blood glucose test reference electrodes, environment test electrodes and the like.

The present invention provides a test device and method for simulating field electric energy measurement.The device for simulating field electric energy measurement is a novel simulating device designed according to the state electric energy meter field standard and DL/T448-2000, includes a real load portion and a virtual load portion in principle.The real load portion is composed of current voltage transformer, second wiring thereof, and electric energy meter, is a single bus double loop, can simulate various real wirings in the field, thus ensuring the accuracy and reliability of the electric energy measurement, and avoiding bringing hidden trouble to the safe operation of the power system.The virtual load is composed of three-phase program control test power supply and voltage, and current wiring switch box, has the characteristics of stability, strong function, easy use and the like, can be used by power supply department, metering department, school and training center for explaining practical phenomena such as false wiring of three-phase three-wire, three-phase four-wire active and reactive electric power meters to students, making the teaching closer to the practical work.

The present invention relates to a hard X-ray photoelectron spectroscopy (HAXPES) system comprising an X-ray source providing a beam of photons which is directed through the system so as to excite electrons from an illuminated sample. An X-ray tube is connected to a monochromator vacuum chamber in which a crystal is configured to monochromatize and focus the beam onto an illuminated sample. A hemispherical electron energy analyser is mounted onto the analysis chamber. An air gap is provided between the X-ray tube and the monochromator chamber, which air gap is provided with a first radiation trap to shield the ambient air from the radiation when the air gap is illuminated with X-rays from the source.

The invention discloses an intelligent vehicle oil amount measurement detection system which aims at providing the intelligent vehicle oil amount measurement detection system which is suitable for vehicle-mounted measurement of a diesel motor and has simple structure and accurate and reliable measurement. An output shaft of a driving motor of a measurement pump is connected with the measurement pump; an oil inlet of the measurement pump is connected with a control valve; an oil outlet of the measurement pump is connected with the oil inlet of a diesel drop tank; the oil outlet of the diesel drop tank is connected with the oil inlet of a low-pressure pump of the diesel motor; an output end of the driving motor of the measurement pump is provided with a revolution sensor; a liquid level sensor is arranged in the diesel drop tank; and the liquid level sensor and the revolution sensor are respectively connected with a central processing unit. The measurement detection system solves the problem of vehicle oil consumption measurement taking diesel oil as energy, provides a guarantee for the convenience of measurement, management of power generating machines and energy conservation, and has simple structure, accurate and reliable measurement, low cost and convenient installation.

The invention discloses an electronic scale, which comprises a rotary holder, a right leg, a left leg, a middle leg, a main circuit board, a scale display and a power supply part, supporting feet are respectively mounted on the right leg, the left leg and the middle leg, a first sensor is mounted on the right leg, a second sensor is mounted on the left leg, a third sensor is mounted on the middle leg, the first sensor, the second sensor and the third sensor are in signal connection with the main circuit board through sensor wires, and the main circuit board is connected with the circuit of the scale display. The electronic scale is characterized in that: the right leg, the left leg and the middle leg are connected with the rotary holder, wherein the right leg, the left leg and the middle leg are mutually rotated to form a folding state by means of the rotary holder. The electronic scale is thin in thickness, the measurement is accurate and reliable, the electronic scale is convenient to carry, and moreover, the electronic scale also has an angle-limiting function and an in-place indication function, and therefore is more convenient to use.

The invention discloses a quantum voltage-based digital electric energy metering instrument detection method and system. The method comprises the following steps that analog voltage and current signals and alternating-current quantum voltage signals are generated; the analog voltage and current signals and the alternating-current quantum voltage signals are subjected to AD sampling separately to obtain difference values between the analog voltage and current signals and the corresponding alternating-current quantum voltage signals; standard analog alternating-current power is obtained throughcalculation; the analog voltage and current signals are packaged into digital quantity signals for detecting the digital electric energy metering instrument to be input into a to-be-detected digital electric energy metering instrument; the digital quantity signals are used for realizing the detection of the electric energy metering accuracy of the digital electric energy metering instrument, so that the problem that when an existing analog electric energy power reference is adopted for carrying out quantity value transmission on the digital electric energy metering instrument, the electric energy quantity value transmission link is long and uncertainty components are numerous, and consequently, the detection requirements of the digital electric energy metering instrument with high accuracycannot be satisfied is solved.

The present invention relates to one kind of liquid drop measuring method and device. The measurement method includes adopting two vertically superposed position sensors and one capacitive sensor to measure the time for the liquid drop to pass through, adopting a frequency counter to count frequency and adopting microprocessor to calculate the liquid drop volume. The device includes two photoelectronic sensors, one capacitive sensor, one capacitance/frequency converter, one frequency pulse counter and one microprocessor. The present invention can measure the volume of each falling liquid drop directly with high precision and fast dynamic speed.