Electronic levelling staff with levelling indication

An electronic level and ruler technology, which is applied in the direction of measuring rulers, movable marks, measuring point marks, etc., can solve the problems of discoloration of the marking edge, easy to accumulate dirt, high cost, etc., achieve high definition, solve processing technology problems, The effect of long service life

Inactive Publication Date: 2005-12-21
戴进武 +1
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Problems solved by technology

[0003] Although the laser firing process meets the accuracy requirements of the leveling scale used in electronic levels, there are still some unsatisfactory aspects in terms of its aesthetics, such as the uneven bottom of the stripe code, discoloration of the edge of the division, easy aging, brittleness, and dents. Dirt is easy to accumulate in the reticle, which not only directly affects the imaging clarity, but also affects the service life of the product
[0004] In addition, the laser burning process has a long cycle and high cost

Method used

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  • Electronic levelling staff with levelling indication
  • Electronic levelling staff with levelling indication
  • Electronic levelling staff with levelling indication

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specific Embodiment approach

[0024] detailed description: figure 1 A schematic diagram of the leveling staff used by the electronic level is given. The barcode on the scale is designed as black and white or yellow and black stripes, and all stripes are integer multiples of the thinnest stripe.

[0025] Such as figure 2 As shown, in order to realize the production by spraying process figure 1 An electronic level gauge, which at least includes processing a strip 1 with a length and width similar to the scale to be processed, and the strip 1 is wider than the leveling scale pattern part, figure 2 Band 1 that fits the fabrication template is given.

[0026] image 3 On the strip 1, the positioning marks 2 are firstly arranged at a certain period, and the positioning marks 2 can be discs or square discs, which play a positioning role. The center distance between two positioning marks is 2.025mm. Then the positioning mark 2 is drilled to form a positioning hole 4, as shown in FIG. 4 .

[0027] Figure 4 ...

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Abstract

An electronic level surveying rod with level indication is prepared by manufacturing a strip similar to size of surveying rod to be prepared, arranging the positioning marks on said strip, forming the positioning holes by making holes according to positions of the positioning marks , preparing relevant bar code at bottom edge of the positioning holes , processing off rags of holes and making the surveying rod by spraying on strip with hole bar code.

Description

Technical field: [0001] The invention relates to an electronic level gauge, in particular to an electronic level gauge with level indication. Background technique: [0002] The bar code of the leveling scale in high-precision geodetic leveling requires high processing accuracy. Whether it is spraying process or laser firing, the process error is required to be controlled at the order of tens of μM. Although there are many kinds of processing technology for controlling this method, but there is no reticle in reality. The base surface of the tape is flat, and the reticle is convex. The image of the instrument is clear, and the precision control level in the process is high, which meets the requirements of the first-class geodetic precision measurement standard. However, with the emergence of electronic levels, the processing method of printing patterns on the scales is not suitable for the requirements of the leveling scales used by electronic levels. The leveling scales used ...

Claims

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Application Information

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IPC IPC(8): G01C15/06
Inventor 戴进武李文杰
Owner 戴进武
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