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Digital trip water level point gauge

A barcode and stylus technology, applied in the direction of measuring devices, liquid/fluid solid measurement, engine lubrication, etc., to achieve digitization and automation, reduce work intensity, improve measurement efficiency and accuracy

Inactive Publication Date: 2007-02-28
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0009] However, the application of bar codes to water conservancy projects, especially to the basic experiments and model research fields of hydraulic engineering measurement, has not yet been implemented.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The names of the components in Figures 1 to 3 are: 1-Measuring vehicle, 2-Barcode reader, 3-Style, 4-Support rod, 5-Screw fixing device, 6-Barcode scale, 7-Guide rail, 8 - barcode scanner, 9-computer.

[0017] The barcode reader 2 is fixed on the measuring vehicle 1, and the barcode scale 6 is moved and fixed by rotating the fixing device 5, and the probe 3 and the barcode scale 6 are fixedly connected.

[0018] According to the new barcode coding method, make a barcode suitable for the probe, use the mature photoelectric system and pattern recognition system to read the barcode in the metal frame, get the actual length value through decoding, and then save the length data through the computer 9 and processing.

[0019] Generally, the length measurement range of the water level probe is 50 cm, the vernier window is 1 cm, and the measurement accuracy is 0.1 mm. The measuring range length of the new water level stylus rod is still 50 cm, and the vernier window is 1 cm. ...

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Abstract

The invention relates to a digit bar code water level meter, wherein it is characterized in that: it comprises testing cart, bar code reader, testing needle, support rod, screw fixer, bar code scale, track, bar code scanner, and image processor; the bar code reader is fixed on the testing cart, via rotating fixer, to move the bar code scale; the testing needle and the bar code scale are connected; the testing cart moves on the track; one end of bar code scanner is connected to the optical path of scale, and another end is connected to the image processor; it is relative to the cursor window, to move with the window to generate bar code unit on the scale. The invention can improve the testing efficiency and improve the accuracy.

Description

technical field [0001] The invention relates to a digital barcode water level probe for measuring water level, which belongs to the technical field of water conservancy engineering. Background technique [0002] 1. Background technology of water level probe [0003] The water level measuring needle is used to measure the water level, also known as the measuring needle water level gauge. It is the most widely used instrument in hydraulic engineering and research. The measuring needle is composed of a sleeve and a measuring rod, and the sleeve is firmly installed on the support. , the stylus can move up and down in the sleeve, and there is another kind of micro-movement structure, which uses the micro-motion gear to make it move slightly. There is a vernier with a minimum reading of 0.1mm (or 0.05mm). It is characterized by high measurement accuracy and small measurement range. It is mainly used for water level measurement with high data accuracy requirements. It is often us...

Claims

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Application Information

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IPC IPC(8): G01F23/00
Inventor 方红卫韩冬
Owner TSINGHUA UNIV
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