38results about How to "Reasonable measurement" patented technology

The invention relates to an overall verification and measurement method for the measurement performance of a high-voltage electric energy metering device, which belongs to the field of measurement. It connects the high-voltage voltage / current generation unit, voltage / current adjustment unit, data comparison unit, control and data processing unit with the high-voltage electric energy standard metering unit and the measured high-voltage electric energy metering device; the high-voltage electric energy standard metering unit and the measured The high-voltage electric energy metering device respectively applies the sequence values ​​of primary voltage Un and primary current In to obtain a set of standard circuit electric energy value and measured electric energy value data; the above data are respectively sent to the data comparison unit for comparison, and the comparison results are sent to the control and a data processing unit; the required measurement error percentage γ is obtained according to the following formula: γ (%)=((the electric energy of the measured high-voltage electric energy metering device-the electric energy of the standard metering circuit) / the electric energy of the standard metering circuit)×100 ; The control and data processing unit converts the measurement results into identifiable information and outputs them, based on which the overall measurement performance of the measured high-voltage electric energy metering device is verified and measured. It is suitable for the field of verification and measurement of high-voltage electric energy metering devices.

The invention relates to a device and a method for measuring fluffing and balling shape as well as hair bulb stripping of a yarn. The device comprises a mechanism clamping hair bulbs to implement stripping, a yarn delivery mechanism performing equal-tension close packing, a yarn winding mechanism winding the yarn at a constant speed, a yarn grinding mechanism performing friction on the close packed and wound yarn, a translation driving mechanism driving the yarn delivery mechanism and the yarn winding mechanism in a switching manner, an abrasion object collector, a microimaging system and a control and data analysis system. The measuring method comprises the steps that a gap bridge wheel of the translation driving mechanism transposes the yarn delivery mechanism and the yarn grinding mechanism, and is matched with the yarn winding mechanism, so that close packing yarn winding and yarn grinding sampling are achieved; a yarn grinding sample in a yarn grinding process is measured in situ; and comprehensive measuring and evaluation are performed on the yarn grinding sample in a final state. The device is ingenious in structure, practical, precise in measuring, quantitative, and multipurpose, is an in-situ measuring device for measuring multiple indexes, and can be used for measuring of the hair feather and hair bulb quantity, the shape, the abrasion loss and the back-and-forth drag stripping property of the yarn, and for comprehensive evaluation of the fluffing resistance and the balling resistance.

The invention provides a device for testing the mechanical properties of high-temperature superconducting strips, which includes a four-lead control device (1), a strip critical current test stand (2), a strip turning radius test stand (3), a strip material tensile stress test frame (4). The advantages of the present invention are: 1. The device of the present invention can complete the precise measurement of almost all the electrical and mechanical properties of the strip short sample, including the turning radius, tensile stress, delamination stress, etc., with complete functions and convenient use; 2. Equipment The design is complete, practical and humanized, people can sit on the table for welding, testing and other processes, the whole process is relatively easy. 3. The square hole plate installed on the desktop can accommodate various test sample racks, screws, tools, etc., which is convenient and practical; 4. The test sample racks can reasonably and effectively support the measurement of samples.

Provided is a sub-channel flow sampling device. The device comprises an e-press, a sampling passageway upper sealing cover, a sampling section outlet connecting pipe, a round section sampling passageway, a flexible corrugated pipe, an upper chamber, an upper chamber outlet connecting pipe, a sampling passageway lower sealing cover, a sampling probe, a visible pipe section and an adjusting device,wherein the e-press is welded to a hole in the lower end side face of the sampling probe, the sampling probe is used for measuring the static pressure of an internal sub-channel and an adjacent sub-channel, the round section sampling passageway penetrates through the top of the upper chamber and is connected with the upper chamber through the flexible corrugated pipe. The lower end of the upper chamber is connected with the visible pipe section for observing and calibrating the position of the sampling probe. The adjusting device can adjust the position of the sampling probe. The sampling device is connected with a rod cluster test section through the visible section and connected with a test pipeline system through the sampling section outlet connecting pipe and the upper chamber outlet connecting pipe. The sampling device is simple in overall structure and easy to machine, and a flow sampling scheme is provided for the research on the rod cluster sub-channel flowing characteristic. The invention further provides a use method of the sampling device.

The invention relates to an eccentric wheel type horizontal impact spectrum measuring device and a mounting and measuring method thereof. The eccentric wheel type horizontal impact spectrum measuringdevice comprises a base and a top plate which are horizontally arranged up and down at intervals, wherein the space between the base and the top plate is supported by vertical plates on the two sides;a vertical shaft is jointly mounted by the base and the top plate, the two ends of the shaft are connected with the base and the top plate through bearings respectively, and the upper end of the shaft extends out of the top plate and an angle sensor is mounted at the end; an eccentric wheel with an oval structure is horizontally and fixedly arranged on the shaft between the base and the top plate; and torsion springs are fixedly arranged between the eccentric wheel and the top plate and between the eccentric wheel and the base respectively; when a test is carried out, the angle sensor is connected with a controller, the eccentric wheel is rotated under the action of an external impact load, the angle sensor transmits rotation angle information to the controller, and the eccentric wheel isreset under the action of an upper torsion spring and a lower torsion spring after the external load is removed; and the impact spectrum displacement is obtained according to the measured rotation angle information, and then the measurement of the horizontal impact spectrum is realized. The device is simple and compact and reliable in structure and convenient to operate and use, and the obtaineddata is reliable and effective.

The invention relates to a tension gripping and drawing measuring device and method for a polygonal cylinder type grinding yarn feather badminton. , creel, electrostatic piler and control and data acquisition and analysis system. The method is to rub the yarns on the polygonal tube corner by corner in a Lisharu curve after the close-packed winding is completed, and then apply pressure to the grinded yarn samples turned to the top to hold the yarn layer corner by corner, and then Clamp the ground hair feathers or balls to measure the pulling force and observe the shape of the tested hair feathers or balls until the drawing measurement of each corner is completed, and the microscopic shape of the hair feathers and balls pulled out under tension is obtained. value and extraction force curve. It is a fast, simple, practical and accurate measuring device and method, which can be used for the pilling sample preparation of yarn, the measurement of pilling hairiness and pilling curve and shape, and the pilling resistance of yarn comprehensive evaluation.

Provided is a light stop block for axial movement measurement of large cylindrical rotating equipment. A stop block body is a hollow plate, the two ends of the stop block are respectively provided with a bolt hole, one end is a movable end, a double-end bolt penetrating through the bolt hole in the movable end is provided with an adjusting spring, the other end is a fixed end, and a bolt penetrates through the bolt hole in the fixed end; the stop block and a base frame are fixedly arranged in an integrated mode, a dial gauge is fixed on the base frame, and an axial movement measurement dial gauge is erected above the center of the equipment. The stop block is light in weight, can guarantee stability when axial movement measurement of the large cylindrical rotating equipment is conducted, and therefore effectively guarantee measurement accuracy.

The invention relates to a wind-dispelling and damp-clearing wine comprising 30g of long-nodded pit viper, 30g of ophidian black snake, 50g of earthworm, 20g of white silkworm, 20g of scorpio, 10g of chilopod, 20g of ground beetle, 10g of black ant, 30g of Chinese angelica, 30g of yam, 30g of liquorice, 60g of rhizome cibotii, 30g of aristolochina mollissima, 30g of rehmannia glutinosa, 30g of eucommia ulmoides, 30g of Chinese starjasmine stem, 30g of radices sileris, 30g of fourstamen stephania root, 30g of radix rehmanniae recens, 30g of notopterygium root, 30g of doubleteeth pubescent angelica root, 30g of mulberry twig, 30g of radix astragali, 30g of the root of bidentate achyranthes, 30g of clematis root, 30g of rhizoma chuanxiong, and 4000ml of high-quality white spirit with 60 degrees. The wind-dispelling and damp-clearing wine takes the high-quality white spirit as a carrier and makes the traditional medical effective disease treating elements fully solve in the carrier to specially treat rheumatism with exact medicine usage, proper dosage and strong pertinence; and the patient takes the medicine conveniently with small dosage and fast curative effect.