Automatic detection method for measuring effective area of adjusting mechanism
A technology of automatic detection and effective area, which is applied to measuring devices, optical devices, instruments, etc., can solve problems such as large errors, inability to adjust and repair the adjustment mechanism, and difficulty in accurately estimating the working performance deviation of the adjustment mechanism.
Active Publication Date: 2021-05-18
BEIJING POWER MACHINERY INST
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Problems solved by technology
Since the cross-section of the effective area 2 is actually a closed polygonal structure rather than a circle, calculating the circular area directly based on the aperture will lead to excessive errors; moreover, the continuous measurement of the effective area 2 cannot be carried out by using the caliper measurement, and it is difficult to obtain a change curve accurately. Estimate the deviation of the working performance of the adjustment mechanism, and it is impossible to effectively install, adjust and repair the adjustment mechanism based on the measurement results
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[0035] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0036] This embodiment provides an automatic detection method for measuring the effective area of the adjustment mechanism, the steps are as follows:
[0037] Step 1, build an automatic detection device.
[0038] Such as figure 2 As shown, the automatic detection device includes an image acquisition lifting mechanism 3 , an image analysis module 4 , a synchronization ring lifting mechanism 5 , and a control module 6 . The image acquisition lifting mechanism 3 is used to collect images of the effective area 2 of the adjustment mechanism; the image analysis module 4 is used to analyze the collected images; the synchronization ring lifting mechanism 5 is used to drive the movement of the synchronization ring 1 of the adjustment mechanism; the control module 6 is used to control the image detection The movement of the lifting mechanism and the synchronizi...
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The invention discloses an automatic detection method for measuring the effective area of an adjusting mechanism, and the method employs an optical system to obtain an effective area cross-sectional image as the basis of effective cross-sectional area calculation. On the basis of obtaining an effective area cross section image, the effective area cross section image is analyzed, and then area calculation of an effective cross section is carried out based on geometric features and optical features. Effective areas of different positions can be measured by utilizing an image acquisition lifting mechanism, a synchronous ring lifting mechanism and a control module, high sectional area measurement precision, high detection precision and high detection efficiency can be ensured by utilizing pixel equivalent calibration, and the requirement that effective area measurement is less than or equal to 2% of comprehensive error precision is met. And the detection requirements of various adjusting mechanisms in a certain size range can be met, and the detection method is universal.
Description
technical field [0001] The invention relates to the field of detection devices, in particular to an automatic detection method for measuring the effective area of an adjustment mechanism. Background technique [0002] The adjustment mechanism mostly adopts the rotary form, such as figure 1 As shown, it mainly includes two parts, the synchronization ring 1 and the main body of the adjustment mechanism, which can convert the up and down movement of the synchronization ring 1 into the opening and closing movement of the main body of the adjustment mechanism, and control the effective area 2 to continuously adjust within a fixed area range. In the process of adjusting the movement of the nozzle, it is necessary to establish a relationship curve between the position of the synchronous ring 1 and the effective area 2, so it is necessary to carry out real-time linkage measurement of the position of the synchronous ring 1 and the effective area 2 during the assembly process, and s...
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Login to View More IPC IPC(8): G01B11/28
CPCG01B11/28
Inventor毛海俊周恺张忠清毛善斌徐军
OwnerBEIJING POWER MACHINERY INST