Rockwell digital display meter

A digital display meter and Rockwell's technology, applied in the field of digital display gauges, can solve the problems of low service life, single function, and large measurement reading error of mechanical dial indicators, so as to reduce reading errors and improve accuracy , improve the effect of consistency

Inactive Publication Date: 2008-06-18
王丕勋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The Rockwell hardness tester with a mechanical scale as the measuring device has the characteristics of simple and reliable structure, no need for mains electricity, and low cost. At the same time, it also has shortcomings and shortcomings such as large measurement reading error, single function, and low service life of the mechanical dial indicator.
[0004] If the expansion of its functions and digital display are realized in the traditional way, the complexity of the system and the cost of equipment will be greatly increased.

Method used

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  • Rockwell digital display meter
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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0012] like figure 1 , 2 Mount this Rockwell digital display on the Rockwell hardness tester as shown. An inner case 3 is installed in the case 1 having the same installation size as the existing mechanical Rockwell watch. A slidable guide rod 6 is installed on the inner shell 3 , and a measuring ring 2 is installed on the slidable guide rod 6 . Equipped with a counterweight 7, the necessary additional measuring force is provided to make the measuring force constant.

[0013] The movable grid 4 fixed on the slidable guide rod 6 and the fixed grid 5 fixed on the bottom plate constitute a capacitive grid displacement sensor. During the Rockwell test, the displacement of the indentation depth is transmitted to the measuring ring 2 through the measuring lever, which drives the slidable guide rod 6 to move. After the sensing digital signal is read and processed by the microprocessor in the watch, the Rockwell hardness value is directly displayed by the liquid crystal display 11...

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Abstract

The invention discloses a Rockwell digital display meter. An inner covering (3) is arranged inside an outer encloser (1). A gliding guide stem (6) is arranged on the inner covering (3). One end of the gliding guide stem (6) is provided with a measuring hoisting ring (2), and the other end of the guide stem (6) is provided with a clump weight (7). A movable grating (4) fixed on the gliding guide stem (6) and a fixed grating (5) fixed on the soleplate of the outer encloser (1) constitute a capacitive grating displacement transducer. The invention manages various key operations, calculates and displays the hardness values during the test through an inner low power dissipation microprocessor. In addition, the invention achieves digital display of ordinary Rockwell hardness testers and reduces the error of reading.

Description

technical field [0001] The invention relates to a digital display meter, in particular to a Rockwell digital display meter used in a Rockwell hardness tester to calculate and display the Rockwell hardness value by measuring the depth of indentation. Background technique [0002] At present, the well-known Rockwell hardness testers are all based on a dial gauge with a mechanical dial indicator as the basic core, except that the digital display is realized by using a general displacement sensing device with a separation system of a microprocessor and a display device. The measurement converts the Rockwell hardness value. [0003] The Rockwell hardness tester with a mechanical gauge as the measuring device has the characteristics of simple and reliable structure, no need for mains power, and low cost. . [0004] If the expansion of its functions and digital display are realized in the traditional way, the complexity of the system and the cost of equipment will be greatly incr...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01N3/06G01N3/44
Inventor王丕勋
Owner王丕勋