Measuring method of plane levelness measuring device
A technology of level measurement and measurement method, which is applied in the direction of measuring devices, optical devices, instruments, etc., and can solve problems such as the inability to measure level
Inactive Publication Date: 2013-11-27
YANGZHOU SANYE HEAT RADIATOR
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[0006] The above method is suitable for the measurement of a movable, single overall plane, and it cannot be measured for the levelness fixed on the ground or under the ground (in the pit) or multiple small planes
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[0028] A method for measuring a plane levelness measuring device, comprising a differential pressure transmitter 5, a water cup 1, a water cup 2 2, two rubber pressure guide tubes 4, a digital ammeter 7 and a power supply 6, the differential pressure transmitter 5 and The digital ammeter 7 is connected to the power supply 6, and the side walls of the cup one 1 and cup two 2 near the bottom are provided with through holes, and copper tubes 3 are arranged in the through holes and welded firmly, and the copper tubes 3 are drawn out of the cup body. One end of the two rubber pressure guiding tubes 4 is sleeved on the copper tube 3, and the other end is respectively sleeved on the interface of the high pressure port and the low pressure port of the differential pressure transmitter 5. The bottoms of the first water cup 1 and the second water cup 2 Flat and smooth, there is clear water in the cup, the water volume is 1 / 2 to 2 / 3 of the capacity of the cup, the specific measurement ste...
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The invention relates to a plane levelness measuring device and a measuring method of the plane levelness measuring device. The plane levelness measuring device comprises a differential pressure transmitter, two cups, two rubber joining pipes, a digital ammeter and a power supply; the specific measuring steps are as follows: cups 1 are moved in sequence and placed on different positions of a plane to be measured, after standing, the output value of the ammeter is observed, when the output value of the ammeter does not change, the current values Ii corresponding to positions are respectively recorded; the differential pressure value of each point Delta h (mm)=[range H of the transmitter (mm H2O) / 16(mA)]*[measured current value I(mA)-4(mA)]; and the levelness error calculated value of the plane to be measured is equal to Delta h maximum minus Delta h minimum. The invention breaks through the traditional measurement mode, takes the horizontal plane as the measurement base level and accurately measures the levelness error of planes at different positions by the method of measuring the pressure difference of water levels in a container at different positions.
Description
technical field [0001] The invention relates to a measuring device and a measuring method for the levelness of a shock-absorbing foundation base of precision mechanical equipment, in particular to a measuring device and a measuring method for a plane levelness. Background technique [0002] At present, there are several methods for measuring plane levelness as follows: [0003] 1. Flat interferometry: Use the working surface of optical flat to reflect the ideal plane, and directly determine the flatness error value of the measured surface by the curvature of the interference fringes. Pertains to measuring facets. [0004] 2. Meter measurement method: The meter measurement method is to place the measured part and the micrometer on a standard flat plate, use the standard flat plate as the measurement reference surface, and use the micrometer to measure. [0005] 3. Beam plane method: The beam plane method uses a quasi-value telescope and an aiming target mirror for measurem...
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IPC IPC(8): G01B11/30
Inventor 李楠
Owner YANGZHOU SANYE HEAT RADIATOR