75results about How to "The measured value is stable" patented technology

A blow molding machine with air conditioning that while minimizing the introduction rate of outside air, realizes maintaining of constant temperature in not only a plant building but also the interior of a blow molding machine and production of a bottle as a final configuration with stability in its measurement value. The blow molding machine with air conditioning is constructed so that air for use in biaxially stretching blow molding together with hot air of heating zone (1) and internal air of a plant building is suctioned by means of suction chamber (4), filtered by means of primary filter (6) and secondary filter (7) into clean air, brought into heat exchange with primary cooling coil (8), fed under pressure by air blower (10) and released through low-temperature duct (12) into the interior of the plant building. Further, the construction is made so that housing (3) on its side face is provided with vent (3a) so as to allow reflux of the clean air released into the interior of the plant building and flow into the heating zone (1) and blow zone (2).

An objective of this invention is to achieve good measurement accuracy, stable measurement sensitivity and rapid response in a device for measuring a liquid sample and a method for measuring a liquid sample using a sensor comprising an enzyme layer and to minimize sensitivity reduction in repeated or continuous measurement. A device for measuring a liquid sample consists of a sensor comprising an enzyme layer, an upper case 3 and a lower case 4 sandwiching the sensor 5. The sensor 5 is removable from the upper case 3. The upper case 3 comprises a liquid sample inlet channel 1 and a liquid sample outlet channel 2. The liquid sample inlet channel 1 is placed at an angle to the surface of the sensor 5 while its opening end is placed in the vicinity of the surface of the sensor 5.

The invention provides an SF6 breaker dynamic contact resistance detection device. The SF6 breaker dynamic contact resistance detection device comprises a super capacitance power source which is connected in parallel with two ends of a port of an SF6 breaker and is used for providing a stable similar current for the SF6 breaker, a current acquisition device which is connected in series with a connection line of the SF6 breaker and the super capacitance power source and is used for acquiring loop currents of the SF6 breaker in a closing and opening process, a voltage acquisition device which is connected in parallel at two ends of the port of the SF6 breaker and is used for acquiring loop voltages of the SF6 breaker in the closing and opening process, and a data processing system which is respectively connected with the current acquisition device and the voltage acquisition device and is used for receiving and displaying the currents and the voltages of the loop and calculating dynamic contact resistance of the SF6 breaker in the closing and opening process according to the currents and the voltages. The detection device is advantaged in that the structure is simple and safe, operation is convenient, and measurement precision is higher when dynamic contact resistance of the SF6 breaker is detected.

The invention provides an impedance measuring device and an impedance measuring method capable of carrying out stable measurement. By using a plurality of measuring frequencies to carry out following measurements and acquiring measuring frequencies having low noises, the measurements comprise steps that synchronous detection of a measuring object in a state without being supplied with measuring signals, namely, the detection signals occurring in samples, is carried out by using two reference signals synchronized with the measuring signals and having orthogonal phases, namely synchronous signals, and the noise level of the samples is measured; the measuring signals having the frequencies of low noises are provided to the samples, and the reference signals are used for the synchronous detection of the detection signals to measure the impedance of the samples; or the samples used as the measuring objects are used to provide the measuring signals having the specific frequencies to generate the reference signals synchronized with the measuring signals, and by using the reference signals, the synchronous detection of the detection signals occurred in the samples is carried out; a plurality of low pass filters having different characteristics are used to let the signals after the synchronous detection pass, and any of the plurality of low pass filters is selected, and the selection is ended by the acquisition of the measuring values without the noise influences.

A blow molding machine with air conditioning that while minimizing the introduction rate of outside air maintains constant temperature in a plant building and the interior of a blow molding machine and production of a bottle as a final configuration with stability in its measurement value. The machine is constructed so that air for biaxially stretching blow molding together with hot air of heating zone and internal air of a plant building is suctioned by suction chamber, filtered by primary filter and secondary filter into clean air, brought into heat exchange with primary cooling coil, fed under pressure by air blower and released through low-temperature duct into the interior of the plant building. Further, a housing on its side face is provided with vent to allow reflux of the clean air released into the interior of the plant building and flow into the heating zone and blow zone.

The invention relates to a wide-range high pressure resistant wire type strain gauge which comprises a cable sealing component (1), a protecting casing sealing component (2) and a wire type sensitive component (3). The wire type sensitive component (3) is subjected to effective multiple sealing protection through the cable sealing component (1) and the protecting casing sealing component (2), the cable sealing component (1) is used for protecting a cable and enables a cable joint to be sealed in the protecting casing sealing component (2), and the wire type sensitive component (3) is located in the protecting casing sealing component (2). According to the wide-range high pressure resistant wire type strain gauge, structures of both a sensitive component and a sealing component of a traditional vibrating wire type strain gauge are modified, and the problems that the strain gauge is subjected to limitation of small wire core strain capacity of the sensitive component and is insufficient in water pressure resistance are solved.

The invention discloses an imaging-free moving object detection and three-dimensional tracking device and method. The method comprises the following steps of controlling the spatial light modulator togenerate a set of sine stripe pattern for modulation illumination by using control equipment, dividing the generated structured light into two beams of polarized light through an imaging system and abeam splitting device, reflecting the light by the reflection device and projecting the light to a scene to be measured from two orthogonal directions, generating two beams of transmission light passing through a scene, then receiving the two beams of transmission light by a photoelectric detector, obtaining a signal amplitude by a data acquisition card, and judging whether a moving object existsin the scene and obtaining a three-dimensional space coordinate and a moving track of the moving object by control equipment according to the change of the signal amplitude. The device is simple in structure and low in cost, the method does not need to acquire, reconstruct or process the image of the object, the amount of data required to be acquired for spatial positioning is small, the data acquisition time is short, the calculation complexity is low, the consumed time is short, and long-time real-time detection and tracking of a moving object and even a high-speed moving object can be realized.

The invention discloses a grating lever-structured contact-pin displacement sensor and a measuring method thereof. The grating lever-structured contact-pin displacement sensor is characterized in that a contact-pin surface profile measuring apparatus and a surface shape measuring apparatus are used for measuring the parameters such as the distances, angles, arc radiuses, and the like of two-dimensional shapes on the surfaces of workpieces by a contact pin scanning method, and a contact-pin sensor is an important component of the surface profile measuring apparatus and the surface shape measuring apparatus and used for acquiring the measured surface profile information. The grating lever-structured contact-pin displacement sensor disclosed by the invention comprises a sensor substrate (1); the sensor substrate is provided with a rotary shaft (2), a sensor lever (3), a grating reading head (4) and a pen-rising mechanism (5); and the front end of the sensor lever is connected with a measuring pin rack (7), a grating ruler (6) is adhered to an arc surface at the tail part of the sensor lever, the rear end of the sensor lever is connected with a damper (8) by a connecting sheet, the measuring pin rack is connected with a measuring pin (10) by a measuring bar (9), and the measuring bar is provided with a force adjustment weight (11). The grating lever-structured contact-pin displacement sensor disclosed by the invention is used for measurement.

The present invention relates to a high-resolution natural potential well-logging method and specially-designed logging instrument for implementing said method. It is characterized by that said instrument shell interior includes a 31-core connector and a collection circuit and control circuit board, can said instrument shell exterior is connected with an electrode system which uses rubber as carrier and contains 16 mutually-insulated electrodes. Besides, said invention also provides the well-logging method by using said logging instrument and its concrete logging steps.

A composition for dyeing keratinous fiber which includes incorporated therein an oxidative color-developing substance, an enzyme which reacts with oxygen as a substrate but does not evolve hydrogen peroxide, and a weak reducing agent.

The invention relates to an automatic tracking type solar scattered radiation measuring instrument and a measuring method. The device comprises a solar scattered radiation measuring device, a controller and an upper computer, the solar scattered radiation measuring device is in wireless connection with the controller, and the controller is in wireless connection with the upper computer. The longitude and latitude of a measurement site, the local time and the initial placement orientation of the automatic tracking type solar scattered radiation measurement instrument are obtained through the Beidou positioning time service module of the controller, and the declination angle, the elevation angle and the azimuth angle of the sun are calculated through the geometrical optics principle of the sun; the declination angle, the elevation angle and the azimuth angle of the sun at each moment when the number of days is n are used for controlling the solar scattered radiation measuring device to track the sun for position change, the solar scattered radiation measuring device obtains radiation voltage, and a solar scattered radiation value is calculated through the controller and transmitted to the upper computer for display and data storage. The solar scattered radiation measuring device can accurately and automatically operate, and an expensive optical tracking device is not needed.

The invention discloses a soil moisture measuring transducer based on time domain transmission and realization method. The transducer comprises: a signal source, a moisture perceptron, a phase shifter and a soil probe. The method includes using the signal source for producing three high-frequency sine-wave signals, sending the third high-frequency signal to the soil probe used for perceiving soil moisture information, sending the signal to the moisture perceptron after returning by the probe, performing phase comparison between the signal with the first high-frequency signal to obtain phase difference cosine signal relevant to the soil moisture, the measuring transducer in order to eliminate interference caused by signal amplitude attenuation, using the second high-frequency signal after performing phase shift for 90 degree by the phase shifter as an orthogonal reference signal which is performing phase comparison with soil probe return signal to obtain a phase difference sine signal, and sending the two phase difference signals to a single-chip microcomputer to process and display measured value. The method has high measurement accuracy, stable measured value and low cost, is easy to realize, and has wide application prospect. The performance reaches the international advanced level.

The invention discloses a method using three-dimensional photonic crystals to measure potential of hydrogen (pH), and relates to a method for measuring a pH valve of solution. The method using the three-dimensional photonic crystals to measure the pH aims to solve the problem that when used for measuring the pH, an existing method is not high in accuracy, and not good in stability. The method using the three-dimensional photonic crystals to measure the pH comprises a first step of adding methacrylic acid and vinyl benzene to ultrapure water, adjusting and extracting the pH, adding potassium persulfate and carrying out stirring in an even mode, a second step of adding ultrapure water to adjust volume fraction of the solution, and placing the solution into a constant temperature box, carrying out deposition and obtaining a photonic crystal film, a third step of placing the photonic crystal film into solution with different pH values, sequentially measuring reflection spectral curves of the photonic crystal film and matching a relation curve of the wavelength of the wave peak position of the reflected light of a pH value and the photonic crystal film, and a fourth step of soaking the photonic crystal film in the solution to be measured, measuring a curve of reflectance spectrum, and inferring the pH valve of the to-be-measured solution. A device, used for preparing the photonic crystal film, of the method is simple, the film can be repeatedly used, a measured value of the pH is accurate, a measured numerical value is stable, and the method using the three-dimensional photonic crystals to measure the pH is mainly used for measurement of the pH of the solution.

A temperature measuring device includes a temperature sensor, arranged within a holder, for determining the temperature of a building material located within a skip of a transport vehicle, the skip including an inner wall and an outer wall, and the holder being arranged on that side of the inner skip wall that faces the outer skip wall. The holder is arranged within a recess within the inner skip wall such that it is thermally insulated from the inner skip wall. The holder is arranged within the recess such that a region, which faces the interior of the skip, of the holder is exposed.

The invention belongs to the technical field of methods for determining copper in copper concentrate, and particularly relates to a sample treatment method for determining copper in copper concentrate. The method comprises the following steps: (1) respectively weighing 11 parts of national primary standard substances GBW07166 and 11 parts of ZBK338 0.4000g parallel samples, and putting the samplesinto a 300mL conical flask; (2) wetting the samples with a small amount of water, adding 10 mL of hydrochloric acid, and placing the samples on an electric heating plate for low-temperature heating for 3-5 min; (3) adding 5mL of nitric acid, and performing low-temperature heating for 3-5min; (4) adding 5mL of sulfuric acid (1 + 1), performing low-temperature heating for 3-5min, then adding 3mL ofperchloric acid, performing heating for dissolving until no black residue exists, performing evaporation to dryness, and performing cooling. Long-term practice proves that the method is accurate andstable in measured value, good in human body safety and worthy of popularization.

The invention provides a livestock airbag type anti-stamped automatic weighing device, which includes a fence module, a pedal module and a measuring module; the fence module includes a bracket and a block; the pedal module includes a lifting plate, a guide module and an electronic scale; Rollers are designed on the side of the lifting plate; the measurement module includes an air pressure module and an electrification module; the air pressure module includes an air bag and a connector, and a sealed cavity is designed inside the connector, and an advanced air hole; the electrification module includes an elastic film, wires and contacts; the elastic film is internally designed with wire grooves, and the upper and lower ends of the inner surface of the air intake hole are designed with corresponding wire grooves; The weighing device is a device that can buffer the pedaling force of the livestock through the characteristics of the airbag, and at the same time accurately and automatically measure the weight of the livestock.

The present invention relates to an automatic correction method of human body fat measuring instrument. Said method is characterized by that between left electrode LI, left electrode LV, right electrode RI and right electrode RV a standard resistor R is mounted, and said invention utilizes chip computer assembler language program or C assembler language program and applies AC constant-current source to said standard resistor R to measure standard resistor R value, then utilizes said standard resistor R value and slope formula to calculate human body resistance value so as to ensure measurement accuracy of human body fat rate.

The invention provides a high-precision cesium optical pump dynamic magnetic measurement system applied to ship-borne hard links in shallow water areas, which is characterized in that the system comprises a ship-borne quick-release connecting structure, a cesium optical pump acquisition system, an RTK (Real-Time Kinematic) positioning structure, an IMU (Inertial Measurement Unit) inertial navigation system, a watertight packaging probe cover and a power supply system; the ship-borne quick-release connecting structure is mounted on the lower side of the cesium optical pump acquisition system; the cesium optical pump acquisition system and the ship-borne quick-release connecting structure are connected with a ship through quick-release screws; the RTK positioning structure, the IMU inertial navigation system and the watertight packaging probe cover are installed on the upper side of the cesium optical pump acquisition system; and the power supply system is connected with the cesium optical pump acquisition system, the RTK positioning structure and the IMU inertial navigation system. The ship-borne cesium optical pump system is subjected to related modification and is equipped with an angle measurer, a carbon fiber telescopic pipe, a sealed waterproof probe outer cover and the IMU inertial navigation system, the whole set of device can be used independently, the model of a loading ship is not limited, and connecting devices can be changed according to different ships.

The invention provides a quantitative detection kit for human Dickkopf-1 protein (DKK-1). The quantitative detection kit comprises a calibrator, a quality control product, a DKK-1 monoclonal antibody labeled by fluorescein isothiocyanate and DKK-1 monoclonal antibody labeled by alkaline phosphatase solution, a magnetic separation reagent, cleaning liquid and a substrate solution. An adopted detection method combines magnetic particle separation chemiluminescence immune detection, enzyme labeling technology, magnetic separation technology and chemiluminescence technology, and is convenient and simple to operate, mild in reaction condition, stable in luminescence value and little in influence by outside conditions. Compared with existing detection methods, the quantitative detection kit has the advantages of simple sample treatment process, low detection cost, quickness in detection, accurate testing result and high repeatability.

The invention discloses a carrier suppression measurement method of a short burst spread spectrum signal. The method comprises the steps that firstly, a navigation user terminal test platform is constructed under the laboratory conditions with a time frequency reference source time frequency signal acting as a reference; secondly, test control and evaluation software controls a satellite navigation signal simulator to broadcast an outbound navigation signal; thirdly, a navigation user terminal receives the outbound navigation signal broadcasted by the satellite navigation signal simulator and transmits an inbound short burst spread spectrum signal under the control of test control and evaluation software; and fourthly, an inbound signal receiver captures, tracks and demodulates the short burst spread spectrum signal transmitted by the navigation user terminal and acquires useful signals and leakage carrier power through precise tracking of the code loop and the carrier loop of the signal so that the carrier suppression measurement value of the short burst spread spectrum signal can be acquired. Carrier suppression measurement of the inbound short burst spread spectrum signal can be realized, and the method has the advantages of being low in cost and simple and practical.

The invention discloses an instruction-EPI-based fine-grained GPDSP power consumption test method and system, and a medium. The instruction-EPI-based fine-grained GPDSP power consumption test method comprises the steps: analyzing an instruction stream of a target program, and obtaining various instructions of the target program and occurrence times Ni of the instructions; calculating the active power consumption Eactive of the target program according to the various instructions of the target program and the appearing times Ni of the instructions in combination with the EPI of the various instructions on the target GPDSP platform; obtaining static power consumption Estatic and no-load power consumption Eidle of the target program; and adding the static power consumption Estatic, the no-load power consumption Eid and the active power consumption Eactive to obtain the total power consumption E of the target program on the target GPDSP platform. According to the invention, the measurementvalue is stable, the accuracy is good, the reliability is high, and the power consumption test has high universality and expansibility.

A temperature measuring device includes a temperature sensor, arranged within a holder, for determining the temperature of a building material located within a skip of a transport vehicle, the skip including an inner wall and an outer wall, and the holder being arranged on that side of the inner skip wall that faces the outer skip wall. The holder is arranged within a recess within the inner skip wall such that it is thermally insulated from the inner skip wall. The holder is arranged within the recess such that a region, which faces the interior of the skip, of the holder is exposed.

The invention relates to the technical field of forensic measuring tools, in particular to an automatic human body size measuring device and method for forensic detection, and aims to solve the problems that a forensic needs to frequently move a human body in the measuring process, so that huge physical power is consumed, the measuring time is long, and the working procedures are tedious. The device comprises a frame plate, a graduated scale is arranged on the side edge of the frame plate; a height measurer which is used for measuring the height of a human body and is arranged on the frame plate; a back jacking mechanism which is used for lifting the back of a human body and is arranged at the bottom of the frame plate; a girth measuring device for quickly measuring the girth of each part of the human body, and a flexible rule for measurement. According to the device of the invention, by means of the human body measurement assisting device, the forensic can be assisted in human body measurement, and the problem that multiple persons need to work cooperatively in the measurement process can be solved.

A method and an apparatus for measuring the thickness of a metal layer. The metal layer has a resistivity (ρ1) that differs from the resistivity (ρ2) of the metal object. The apparatus includes a first device arranged to generate a magnetic field in close vicinity of the metal layer, and to generate a variation of the magnetic field so that a current is induced in the surface of the metal layer, a second device arranged to measure the changes of the magnetic field outside the metal layer due to the induced current during a time period that is longer than the time it takes for the current to propagate through the metal layer, and a computing unit to determine the thickness of the layer based on a mathematical relation between the thickness of the layer and the measured values of the changes of the magnetic field.

The present invention provides a DMA configuration mode and interrupt method based on ADSP-BF60x network communication, aiming at processors with DMA data in ADSP-BF60x series, to realize high-speed communication data processing; in DMA data transmission, two sets of configurations are used in rotation The DMA high-speed transfer interrupt method used. In order to meet the requirements of DMA transfer, configure two sets of descriptor-based DMA transfer sequences; the DMA transfer sequence corresponds to allocate a group of memory in the chip, and move the data in the physical channel to this group of memory during DMA transfer, and set The DMA channel starts the second serial transmission immediately after the first serial transmission is completed; immediately starts the first serial transmission after the second serial transmission is completed. The two DMA series use two sets of configurations for transmission in rotation, and the two sequences switch back and forth, which greatly improves the transmission quality of DMA and solves the problem of data loss.

The invention discloses a rheological measurement apparatus and a measurement method with flow rate accurately controlled. A second and a third pressure sensors are successively arranged on a die head of a measurement module in the flowing direction of a melt polymer at interval. Sufficient material is guaranteed to be supplied to a second gear pump by changing the rotation speed of a first gear pump, and the inlet pressure and the outlet pressure of the second gear pump tend to be equal so as to ensure that the first gear pump can accurately control and meter the material entering the measurement module; in the same way, by changing the rotational speed of a fourth gear pump, the material flowing out from the measurement module can be accurately controlled and metered by means of a third gear pump; when the rotational speeds of the first and the second gear pumps are equal, the material is ensured to flow through the module head as stable as possible by accurately controlling and metering the flow rate, wherein the pressure sensors in the measurement module are capable of detecting the pressure drop in little fluctuation when the material passes through the module head; and accurate relative rheological properties are obtained by the accurate flow rate and the stable and accurate pressure drop.

The invention provides a seawater stray current in-situ monitoring device and belongs to the technical field of stray current monitoring. The monitoring device comprises a seal body, a measuring electrode system for obtaining stray current information, an upper computer system arranged above the water surface and used for displaying the stray current information of a monitoring region in real time, and a test pile. The seal body is internally provided with a single-chip microcomputer microcontroller, a storage device, a power supply module, a timing clock and a circuit conditioning module, wherein the power supply module, the timing clock and the circuit conditioning module are connected with the single-chip microcomputer microcontroller; the measuring electrode system is connected with the circuit conditioning module in the seal body through a multi-core cable; the upper computer system is internally provided with software developed based on Labview; the upper computer system is connected with the single-chip microcomputer microcontroller in the seal body through a cable; the single-chip microcomputer microcontroller realizes in-situ monitoring and recording of measurement data ofthe stray current according to a program set by the built-in software of the upper computer system; and the test pile is connected with the seal body and the measuring electrode system and is fixed to the bottom of a sea area to be monitored. The device realizes online monitoring and long-term and in-situ recording of relevant data of the stray current in the sea area.

The present invention provides a hydraulic measuring unit and a liquid level gauge using the hydraulic measuring unit, which can not only avoid the aeration of the measurement object, the prevention of the growth of the bacteria, the influence of the static region, The A pressure measuring unit includes a diaphragm (5) having a pressure receiving surface on the one surface side of the liquid to be measured, and the other side facing the air chamber (6) as a pressure receiving surface; a compressed air supply port, The air chamber (6) is provided with an opening; and an exhaust port whose open end (71) is opposed to the diaphragm (5) in the air chamber (6). The open end (71) and the diaphragm (5) of the exhaust port are lip-shaped structures which are balanced by the pressure applied to the pressure receiving surface and the pressure applied to the air chamber (6), and the open end (71).