JPH0353111A - Measuring instrument - Google Patents

Abstract

PURPOSE:To reset the measurement result in a range having a relatively narrow maximum width by constituting an instrument so that the measurement result is simultaneously displayed in plural ranges in parallel. CONSTITUTION:An object 4 to be measured is placed on an attitude correcting means 9, and a measuring means 5, a moving means 6, and the means 9 are operated to set the face to be measured of this object 4 to the state parallel with the movement direction of the means 6. An operator uses a mouse 5 to measure the surface roughness of the object while seeing the menu displayed on the display face of a display means 8. A control means 13 receives the signal from the mouse 15 and sends control signals to means 5, 6, 8, and 12. The detection signal of the surface roughness of the object 4 detected by the means 5 is so amplified by an amplifying means 11 that the maximum width is 8mum, 80mum, and 800mum, and three signals are subjected to prescribed operation in an operation means 12, and operation results are displayed on a display face 10 as values corresponding to respective ranges.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a measuring device that includes a display means for displaying measurement results and displays the measurement results in a plurality of ranges.

[Prior Art] Conventionally, a measuring device equipped with a display means and configured to display measurement results in a plurality of ranges, when a certain range is selected from a plurality of ranges, the selection Only the values corresponding to the current range are displayed on the display means.

[Problem to be Solved by the Invention] In a conventional measuring device equipped with a display means and configured to display measurement results in a plurality of ranges, it is difficult to select a specific range from among the plurality of ranges. When selected, only the values corresponding to the selected range are displayed on the display means.

By the way, the purpose of displaying measurement results in multiple ranges is to obtain measurement results with accuracy for multiple heights. In other words, for example, you can switch to a lower precision range, determine the approximate relative position of the object to be measured and the measurement means, or set the measurement means relative to the object, and then switch to a higher range for measurement. Let's do it. Also, by switching to a range with low accuracy, you can obtain a rough measurement result for the entire object to be measured, and by switching to a range with high accuracy, you can obtain extremely accurate measurement results for a specific part of the object to be measured. It is.

When using a conventional measuring device, first switch to a range with low accuracy to set the measurement means for the object to be measured, then switch to a range with high accuracy to measure the object. When a measurement result exceeds the selected high-precision range, a so-called overrange condition, it is impossible to know to what extent the measurement result exceeds the range. Therefore,
In order to continue measurement in the selected range, it is necessary to set the relative positions of the means to be measured and the object to be measured again so that they are within the range. However, with conventional measurement methods, even if the range has been exceeded, it is impossible to know how much the range is overranged, so the measurer has to make settings from scratch, making the operation complicated. There was also the problem that it took a lot of time to reset.

Also, if you want to obtain approximate measurement results for the entire object to be measured and highly accurate measurement results for a specific part of the object in parallel, switch to a lower precision range and measure the entire object. By doing this, you can obtain measurement results for the entire object by switching to a high-accuracy range and measuring a specific part of the object to be measured, and then obtain measurement results for each specific part separately. A method is adopted in which the measurement result is matched to a corresponding part of the entire measurement result. However, this method requires a plurality of measurements, and the measurement results need to be matched between corresponding parts, which makes the work complicated and takes a lot of time. In addition, for example, if the measuring device is a contact-type surface roughness measuring device, the surface roughness of the object to be measured changes with repeated measurements, and There is a problem in that when measurements are performed in a highly accurate range, the measurement results are different and it is sometimes difficult to match the measurement results.

This invention was made in view of the above circumstances, and allows measurement results to be displayed in multiple ranges, and when an overrange occurs during measurement, the reset can be done easily and in a short time. The purpose of this invention is to provide a measuring device that can obtain In addition, when measuring an object to be measured, when obtaining general measurement results of the entire object to be measured and highly accurate measurement results of a specific part in parallel, the work is simple and can be completed in a short time. Moreover, the plurality of measurement results provide measurement results that correspond well to each other.

[Means for Solving the Problems] The present invention is a measuring device configured to display measurement results in any number of ranges from among a plurality of ranges.

The detailed structure includes a measuring means, a display means for displaying the measurement results, and a signal intervening between the measuring means and the display means for transmitting signals from the measuring means indicating the measurement results to a plurality of ranges. The measuring device is equipped with arithmetic means capable of converting into a signal, and configured such that the display means can display measurement results in a desired number of ranges.

[Operation] The measurement results are simultaneously displayed on the display means in an arbitrary number of ranges selected from a plurality of ranges.

[Example] This invention will be described in detail based on the example shown in FIGS. 1 and 2. However, the invention is not limited to this example.

As shown in FIG. 1, a surface roughness measuring device 1, which is a measuring device, includes a base 2, a support 3 vertically installed on the base 2, and a contact device for measuring the surface roughness of an object to be measured 4. A measuring means 5 of the formula, a moving means 6 and a sliding means 7 for moving the measuring means 5 in the front-back direction (arrow 8 directions) and the up-down direction (arrow B direction), respectively, and the results detected by the measuring means 5. A display means 8 for display is provided.

The object to be measured 4 is mounted and supported on an attitude correction means 9 (see Japanese Patent Application No. 1-72288) placed on the base 2, so that the surface to be measured is parallel to the moving direction of the measuring means 5. It is being structured.

The display means 8 is substantially a CRT, and a display screen 10 displays a menu for performing measurements in addition to measurement results.

As shown in FIG. 2, the configuration related to the operation of the surface roughness measuring device 1 includes a measuring means 5 that detects the surface roughness of the object to be measured and converts it into an electrical signal, and a predetermined system for detecting the detection signal from the measuring means 5. (1x, 10x, and 100x), and amplifying means 11 that amplifies the ranges whose maximum widths are 8 μm, 80 μm, and 800 μm, and three signals from the amplifying means 11. , a calculation means 12 that performs predetermined calculations including detection, smoothing, and A/D conversion;
It consists of a display means 8 which displays measurement results by manually inputting signals from the measuring means 5, amplification stages 11, arithmetic means 12, and a control means 13 which sends operational control signals to the display means 8 and the like. Note that the amplification means 11, the calculation means 12, and the control means 3 are arranged inside the main body casing 14 of the display means 8. A mouse 15 is connected to the control means 13 and is used by the measurer to perform measurement operations during measurement.

In the following, the use of the surface roughness measuring device 1 will be explained.

First, the object to be measured 4 is placed on the attitude correction means 9, and the measurement means 5, the movement means 6, and the attitude correction means 9 are operated to align the surface of the object to be measured 4 parallel to the moving direction of the movement means 6. put it in a state. Here, while looking at the menu displayed on the display surface 10 of the display means 8, the user operates the mouse 15 to measure the surface roughness of the object to be measured 4. Control means 13
receives a signal from the mouse 15, and sends a control signal to the measuring means 5 to measure the surface roughness of the object to be measured 4, and a control signal to the moving means 6 to move the measuring means 5 in the eight directions of the arrows. , a control signal for causing the amplifying means 11 to amplify the signal from the measuring means 5 so as to correspond to the three ranges,
The calculation means 12 receives a control signal for performing predetermined calculations on the three signals from the amplification means, and the display means 8 displays the surface roughness of the object to be measured 4 in three ranges based on the three signals from the calculation means 12. A control signal is sent to each display.

Here, the measuring means 5 sends a detection signal obtained by detecting the surface roughness of the object to be measured 4 to the amplifying means 11, and the amplifying means 11 sends the detection signal to a maximum width of 8 μm, 80 μm, and 80 μm, respectively.
The calculation means 12 performs predetermined calculations on the three signals and sends the calculation results as a signal to the display means 8. The display means 8 receives the signals from the calculation means 12. Based on the three signals, values corresponding to the respective ranges are displayed on the display screen 10.

During this measurement, for example, if there is a step on the surface to be measured and the measurement result becomes larger than 8 μm, an overrange state will occur in the display of the range whose maximum width is 8 μm, and the control means will receive a signal indicating this overrange. 13 sends a signal to the moving means 6 to stop. That is, in a range where the maximum width is 4 μm, no measurement results are displayed. Therefore, the measurer needs to reset the relative position between the measuring means 5 and the object to be measured 4 so that the maximum width is within a range of 8 μm. However, in this measurement, the measurement results are also displayed in a range with a maximum width of 80 μm, so the measurer can check how much the measurement result is overranged from the measurement results displayed in a range with a maximum width of 80 μm. Based on the read result, a signal for operation is sent to the slide means 7 using the mouse 15. By sending this signal, the control means 13 sends a signal to the sliding means 7 for sliding the measuring means 5 in the direction of arrow B by a desired distance. The sliding means 7 operates in response to a signal from the control means 13, and the measuring means 5 is located within a range having a maximum width of 8 μm with respect to the surface to be measured of the object 4 to be measured. Here, the relative position between the measuring means 5 and the object to be measured has been reset. The measurer can continue measuring again.

In this resetting, the measuring means 5 and the object to be measured 4
Since the user can know how much the relative position of the sensor has deviated from the boundary of the range, which has a maximum width of 8 μm, from the display corresponding to the range with a maximum width of 80 μm, the measurer can easily and easily reset the range. It can be done in a short amount of time.

In addition, in the above-mentioned measurement, there is a step on the surface to be measured of the object to be measured 4 and the maximum width is 8 μm, and the measurement result until the measurement is temporarily interrupted due to overrange and the measurement obtained by restarting the measurement after resetting. There is a case in which results are to be obtained both locally and simultaneously in a range with a maximum width of 80 .mu.m, throughout the entire region, and in a range with a maximum width of 8 .mu.m. In this case, the maximum width is 8μ
Since both the display corresponding to the m range and the display corresponding to the range with a maximum width of 80 μm are obtained at the same time, the measurer can read the local measurement results from the display corresponding to the range with a maximum width of 8 μm. . On the other hand, the measurer displays the overall measurement results in a display corresponding to a range with a maximum width of 80 μm at the reset point and slides the sliding means 7 by the distance in the opposite direction to the reset point. It can be obtained by sliding the value after the reset point.

As mentioned above, when obtaining the approximate measurement result of the entire measurement surface of the object to be measured 4 and the measurement result when the measurement object is localized and the measurement accuracy is higher in parallel, surface roughness measurement is necessary. Since the two desired measurement results can be obtained simultaneously in parallel with the device 1, it requires less work to obtain the results than when obtaining the two desired measurement results separately and then matching those measurement results. It is simple and can be done in a shorter amount of time.

In this example, the maximum width of the measurement result display is 8 μm.
The measurement results are displayed simultaneously and in parallel even in the range where the maximum width is 800 μm. Also, if desired, only the required range (single or multiple ranges) can be selected and displayed.

The surface roughness measuring device 1 detects the object to be measured 4 and the measuring means 5 when the maximum width is overranged in the display of the small range.
By sliding the relative position with respect to the range, the measurement results are displayed in the range where the maximum width is small, and at this time, the range where the maximum width is relatively large is shifted by the amount of the slide, resulting in discontinuity, but it is possible to slide. A configuration may also be provided in which a correction means is added that can take in the distance and display it continuously.

The surface roughness measuring device 1 is equipped with three types of ranges with maximum widths of 8 μm, 80 μm1, and 800 μm, but the maximum width of the range and the type of range can be selected as desired or necessary. You may.

In the surface roughness measuring device 1ifl, the display means 8 is equipped with a CRT, but the display means may be of a liquid crystal display type, or the measurement results may be displayed by a printer.

The present invention is not limited to surface roughness measuring devices, but can be widely applied to measuring devices that obtain measurement results using a plurality of ranges, such as a roundness measuring device or a contour measuring device.

[Effects of the Invention] According to the present invention, measurement results can be displayed simultaneously and in parallel in a plurality of ranges, so that when the maximum width is overranged in a range where the maximum width is relatively small, the maximum width can be displayed in parallel. Based on the measurement results displayed in a relatively large range, it is possible to easily and quickly reset the measurement results to a range whose maximum width is relatively small. In addition, when obtaining approximate measurement results for the entire object to be measured and local and highly accurate measurement results for the object to be measured simultaneously and in parallel, these two measurement results are simple, Moreover, the effect can be obtained in a short time.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is an explanatory view of the structure showing the operation of this embodiment. 1... Surface roughness measuring device (measuring device) 4... Measured object, 5... Measuring means, 8... Display means,
10...Display surface, 12...Calculating means, 13...
- Control means.

Claims (1)

[Claims] 1. A measuring means, a display means for displaying the measurement results, and a device interposed between the measuring means and the display means, capable of transmitting signals from the measuring means indicating the measurement results to a plurality of ranges. A measuring device comprising: arithmetic means capable of converting the signal into a signal, and configured such that the display means can display the measurement results in a desired number of ranges.