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 relates to a method for measuring pH by using photonic crystal wettability. The method comprises the following steps: (1) preparing an ethanol dispersion solution of microspheres; (2) preparing a silica photonic crystal film; (3) preparing pH responsive photonic crystal films with different infiltrating abilities; (4) putting the photonic crystal film with a wettability response into the known solutions with different pH values, orderly measuring whether the pH responsive photonic crystal films with different infiltrating abilities can be infiltrated to generate an obvious color change under different pHs, and recording; and (5) soaking an array formed by the pH responsive photonic crystal films with different infiltrating abilities into a to-be-measured solution, and observing the color change, so as to know the pH value of the to-be-measured solution. Compared with the prior art, the method disclosed by the invention can be repeatedly used, and is not affected by ion strength, pH measurement value is accurate, the error is smaller than 0.05-0.2pH, and the measurement numerical value is stable.

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.

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 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 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 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 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.

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.