73results about How to "Measure impact" patented technology

The invention discloses a lithography device, which comprises a light source for providing exposure light beams, a projection system for projecting a pattern on a mask plate onto a substrate, a workbench system for moving the substrate and a focusing leveling system for measuring a vertical position and an inclination angle of the substrate. The lithography device is characterized by further comprising a reflecting mirror and a laser interferometer, wherein the optical axis of the laser interferometer is perpendicular to the reflecting surface of the reflecting mirror, and the reflecting surface of the reflecting mirror is parallel to an optical focal plane of the projection system. The invention further discloses a method for measuring multi-light spot zero offset simultaneously. By means of the method, the multi-light spot zero offset can be accurately measured under the condition of using a normal plane, and influence of the uneven appearance of a measured surface on the height measurement is eliminated.

The invention discloses a quantitative evaluation method for an urban heat island effect. The method comprises the following steps of 1, performing data acquisition and preprocessing; 2, calculating an urban heat island intensity and grading; 3, calculating a land utilization contribution index LCI; and 4, coupling urban heat island effect evaluations of the land utilization type based on an LCI index model. The quantitative evaluation method is used for more accurately quantifying the relation between different land utilization types of the city and the urban heat island effect, and the influence of land utilization layout change to the heat island effect. The change of an urban underlying surface is used as a most important factor which affects the urban heat island effect. According tothe quantitative evaluation method, the relation between the land utilization type and the urban heat island effect is quantitatively evaluated, and a scientific guidance basis is laid for reasonableutilization and configuration of the urban land resource.

The invention discloses a leakage-proof ring and method of XLPE cable polarization current measurement. Metal shielding and outer semiconductor layers at the two ends of a measured XLPE cable are peeled and serve as reserved edge surfaces, a copper strip of the width of 15mm and thickness of 2mm is selected, and the length of the copper strip is selected according to the diameter of a cable core and the thickness of an insulating layer. The length of the copper strip equals [pi*(D+d*2)+30]mm, D represents the diameter of the cable core, d represents the thickness of the insulating layer, and the margin of 30mm is considered. Holes of the diameters of 5mm are drilled at positions 5mm to the edges at the two ends of the copper strip respectively, the copper strip is bent till the holes at the two ends are leveled, and a copper ring, namely, the leakage-proof ring, is formed. The leakage-proof rings at the two ends are connected so that leakage current of the edge surfaces does not directly flow back to a power side via a current measurement module, influence of edge-surface leakage current on measurement of the polarization current is influenced, and the polarization current measured by the current measurement module does not include the edge-surface leakage current.

The invention discloses a resistance characteristic electrical variable measuring device of an electronic component, and belongs to the technical field of measuring equipment. The resistance characteristic electrical variable measuring device of the electronic component comprises a box body and an electronic component body, and further comprises a feeding hole and a discharging hole which are respectively formed in two sides of the box body; a frame, which is fixedly connected to the inner wall of the box body; a self-locking assembly which is arranged on the frame; a conducting ring which is arranged on the self-locking assembly and is connected with the electronic component body in an inserting manner; and a signal source which is matched with the conducting ring to transmit an electric signal to the electronic component body. According to the invention, when an electronic component body is measured, a limiting effect can be achieved, the situation that displacement occurs during measurement and measurement of the electronic component body is affected is avoided, dust attached to the conductive column can be cleaned while limiting is conducted, and the situation that the measurement accuracy is affected due to the fact that a large amount of dust is attached is avoided; after measurement, automatic blanking is performed and workers do not need to manually take the electronic component bodies, so that the measurement efficiency is prevented from being affected.

A device (110) for evaluating an electromagnetic field strength / field geometry of an electromagnetic gate apparatus (120) is provided, the device (110) comprising a measurement unit (112) adapted for receiving a measurement signal from the electromagnetic gate apparatus (120) and determining a value of the field strength of said measurement signal, a communication unit (114) adapted for receiving command data from the electromagnetic gate apparatus (120) and adapted for sending response datato the electromagnetic gate apparatus (120). Optionally, the device (110) comprises an evaluation unit (116,118) adapted for evaluating the electromagnetic field geometry of the electromagnetic gate apparatus (120) based on said values of the field strength received from the measurement unit (112).

The invention discloses a resistance characteristic electric variable measuring device of an electronic component, which belongs to the technical field of measuring equipment. The device for measuring electrical variable of electrical resistance characteristics of electronic components includes a box body and an electronic component body, and further includes: a feeding port and a discharging port, which are respectively opened on both sides of the box body; a frame, which is fixedly connected to the inner wall of the box; A self-locking component is arranged on the frame; a conductive ring is arranged on the self-locking component and is connected to the electronic component body; and cooperates with the conductive ring to transmit an electrical signal to the electronic component body When measuring the electronic component body, the present invention can play a limiting effect, avoid displacement during measurement, which affects the measurement of the electronic component body, and at the same time limit the position, the dust attached to the conductive column can be removed. Clean up to avoid dust adhesion, which affects the accuracy of measurement; automatic cutting after measurement, no need for staff to manually take the body of the electronic components, to avoid affecting the measurement efficiency.

A technology and sensor chip that enable hematocrit levels in blood samples to be measured in a short time and at low cost are provided. A response current, which is obtained by sweeping a voltage applied between a measurement working electrode and a measurement counter electrode provided to a sensor chip, is measured, and a hematocrit level is derived on the basis of the ability to track the response current with respect to temporal changes in the applied voltage that was swept. The hematocrit level in a blood sample can thus be measured in a short time without having to wait until a redox reaction in a redox substance for measuring the hematocrit level stabilizes, as in the hematocrit measurement methods of the prior art. Furthermore, because there is no need for a redox substance to measure the hematocrit level, the hematocrit level can be measured at low cost.

The invention relates to a schlieren device used for a test on a high power laser far-field focal spot. The device comprises a light blocking sheet and a light transmission cover that is arranged outside the light blocking sheet. According to the invention, the schlieren device used for a test on a high power laser far-field focal spot is provided. The device has a good light blocking effect and a laser irradiation resistant performance; and there is no influence on measurement.

A thermotechnical high-precision temperature measurement relay of the present invention belongs to the temperature control and overheating electronic component protection technology field, and comprises a relay body and a temperature measuring device, wherein the temperature measuring device is arranged at the side part of the relay body and comprises a fixing casing, a push rod motor, a fixing pipe, a first spring, a first fixing rod, a second fixing rod, a pressure sensor, a second spring, a draught fan, a first temperature sensor, a humidity sensor, a one-way valve, a second temperature sensor, a control device and an alarm. Compared with the prior art, according to the present invention, the second temperature sensor is separated from the relay body, and the push rod motor can push the second temperature sensor regularly to be contacted with the relay body to measure under the control of the control device, thereby avoiding the situation that the second temperature sensor suffers a high temperature for a long time, so that the precision of the second temperature sensor decreases.

The invention relates to a schlieren device used for a test on a high power laser far-field focal spot. The device comprises a light blocking sheet and a light transmission cover that is arranged outside the light blocking sheet. According to the invention, the schlieren device used for a test on a high power laser far-field focal spot is provided. The device has a good light blocking effect and a laser irradiation resistant performance; and there is no influence on measurement.

The invention belongs to the technical field of a precipitation detecting device, and particularly relates to an electric control measuring cylinder type digital intelligent precipitation gauge. The invention provides the electronic precipitation gauge which has advantages of large bearable rain strength range and automatic fault alarm, namely the electric control measuring cylinder type digital intelligent precipitation gauge. The electric control measuring cylinder type digital intelligent precipitation gauge comprises a rain containing funnel and is structurally characterized in that the lower end of the rain containing funnel is provided with a buffering water containing tank; the lower end of the buffering water containing tank is connected with an upper inlet of a main measuring tubebody through a measuring cylinder upper electromagnetic valve; the lower outlet of the main measuring tube body is provided with a measuring cylinder lower electromagnetic valve. A precipitation measuring electrode, an auxiliary electrode and a main measuring tube fault detecting electrode on the main measuring tube body are connected with an electric control measuring cylinder driving board. A control signal output port of the electric control measuring cylinder driving board is connected with a control signal input port of the measuring cylinder upper electromagnetic valve and the control signal input port of the measuring cylinder lower electromagnetic valve. The electric control measuring cylinder driving board is connected with a single-chip microcomputer unit.