JPH08219813A - Measured value display device for material testing machinery - Google Patents

Abstract

PURPOSE: To simultaneously display the analog type display and the graph type display in the same display faceplate without having a mechanical driving unit. CONSTITUTION: The electrical signal for showing load and elongation from a material testing machinery 1 is sent to a measurement control device 5. A data processing device built in the measurement control device 5 appropriately processes the electrical signal and sends out the signal to a liquid crystal display device 6. This liquid crystal device 6 simultaneously displays the indicator type display 11 for showing the measured value of the load and the graph type display 12 for showing the relation with the load and elongation in the same faceplate. An operation switch device 7 can change the display condition of the liquid crystal display device 6 with the operation from outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a measurement value display device for a material tester, and more particularly to a measurement value display device for a material tester that displays the measurement value of the material tester on an electro-optical display such as a liquid crystal display. .

[0002]

2. Description of the Related Art A conventional measurement value display device for a material testing machine is
Generally, a load indicating device that displays the load of the material testing machine in a pointer format is used. This load indicating device has a mechanical rotary drive, converts the mechanical motion of the load device into a rotary motion, and displays it in an analog pointer format. In addition to the load indicating device, a measurement value display device including a recorder such as an XY plotter for displaying the relationship between load and elongation in a graph is also known.

[0003]

However, the measurement value display device of the conventional material testing machine has a mechanical drive part having a relatively complicated structure, and therefore has a problem that it is liable to fail and the cost is high. There is also a problem that it is difficult to visually recognize the pointer display section of the load indicating device and the graph display section of the recorder such as the XY plotter at the same time because they are distant from each other in distance. Therefore, an object of the present invention is to provide a measurement value display device of a material testing machine which does not have a mechanical driving unit and can simultaneously display an analog display and a graph display on the same display screen. .

[0004]

To achieve this object, the present invention provides an electrical device for displaying measured values in an analog format and a graphical format based on at least two measurement data from a material testing machine. A data processing device for generating a signal, and an electro-optical display device having at least one display screen, for simultaneously displaying the analog form display and the graph form display on the one display screen based on the electric signal, and An operating device for sending to the data processing device a command for changing at least one of the display form of the analog form display and the graph form display by an operation. In this configuration, it is desirable that the analog type display displays the load applied to the material of the material testing machine in the pointer type. The analog format display preferably displays the load applied to the material of the material testing machine in a bar graph format.
The operating device can send an enlargement command for enlarging a part of the graph form display, and the electro-optical display device is enlarged on the basis of the enlargement command and a part of the graph form display and the graph. It is desirable to display the formal display and the simultaneous display. It is preferable that the analog format display and the graphic format display are overlapped with each other in substantially the same area of the display screen, with one display density being dark and the other density being light.

[0005]

The data processor processes at least two measurement data from the material testing machine and produces an electrical signal for display in analog and graphical form. Based on the electrical signal from the data processing device, the electro-optical display device simultaneously displays an analog display and a graph display on the display screen. The operating device sends to the data processing device a command to change at least one display mode of the analog format display and the graph format display by an external operation. Since the display device uses an electro-optical display device such as a liquid crystal display device, a cathode ray tube display device, a plasma display device, an LED display device, or the like, it does not require a mechanical drive unit and has an analog format in the same display screen. Since the display and the graph format display are displayed at the same time, both format displays can be visually recognized very easily.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a measurement value display device of a material testing machine according to the present invention will be described below with reference to FIGS. In FIG. 1, the material testing machine 1 applies a tensile load, a compressive load, or the like to the test piece material 2. The material testing machine 1 is equipped with various sensors such as the load sensor 3 and the elongation sensor 4 shown in FIG. The load sensor 3 measures values such as a tensile load and a compressive load applied to the test piece material 2 and generates an electric signal according to the load. Similarly, the elongation sensor 4
For example, it is attached to the test piece material 2 to measure the elongation amount of the test piece material 2 and generate an electric signal according to the elongation amount.

The measurement control device 5 comprises an operating device for the material testing machine 1 and a measured value display device. The former operating device generates an operation command signal for the material testing machine 1 to operate the material testing machine 1. Control. The latter measurement value display device is a liquid crystal display device 6 having a large color or monochromatic liquid crystal display screen, an operation switch section 7, A / D converters 8 and 9 shown in FIG. It is composed of a data processing device 10 having a CPU.

In FIG. 2, the outputs of the load sensor 3 and the elongation sensor 4 are connected to the input section of the data processing device 10 via A / D converters 8 and 9, respectively. The output of the operation switch section 7 is also connected to the input section of the data processing apparatus 10, and the liquid crystal display device 6 is connected to the output section of the data processing apparatus 10.

Next, the operation of this embodiment will be described. With the start of the test of the material testing machine 1, the load sensor 3 and the elongation sensor 4 generate electric signals representing the load and the elongation amount of the material, respectively. These electric signals are converted into digital signals by the A / D converters 8 and 9 and input to the data processing device 10. The data processing device 10 appropriately processes the input digital signal and outputs it to the liquid crystal display device 6.

As a result, as shown in FIG. 3, the measured load value is displayed on the screen of the liquid crystal display device 6 in the analog pointer form 11, and the relationship between the measured load and the elongation is shown in a graph form. It is displayed at 12. Further, in addition to the analog pointer format display 11 and the graph format display 12, the measured values such as load and elongation are displayed on the digital display section 13.
Digitally displayed on.

In the display mode of FIG. 3, since the analog pointer format display 11 is large and the graph format display 12 is small,
The pointer format display 11 is relatively easy to read, and the graph format display 12 is difficult to read. Therefore, this can be reversed if desired. That is, by operating the operation switch unit 7, the graph format display 12 can be enlarged and the analog pointer format display 11 can be reduced, as shown in FIG.

Further, by operating the operation switch section 7, as shown in FIG. 5, a part 12 of the graph format display 12 is displayed.
It is possible to specify "a" with the cursor, and enlarge and display the specified portion 12a in the area 14 similarly specified with the cursor. Since a grid-type scale is also displayed on the magnifying display unit 14, the graph on the magnifying display unit 14 can be easily read.

FIG. 6 and FIG. 7 show a modification of the display form of the analog pointer format display 11 and the graph format display 12. The pointer format display 11 and the graph format display 12 are superimposed on each other and displayed. To be done. More specifically, in FIG. 6, the pointer format display 11 is displayed in dark density, and the graph format display 12 is displayed in light density. Thus, the pointer format display 11 is displayed in an easy-to-see state with the graph format display 12 as the background.

The density relationship between the pointer format display 11 and the graph format display 12 can be reversed by operating the operation switch section 7. That is, as shown in FIG. 7, the graph format display 12 is displayed in dark density, and the pointer format display 11 is displayed.
Is displayed in a light density. Further, if the liquid crystal display device 6 is capable of color display, by using different colors for the pointer format display 11 and the graph format display 12, both format displays can be visually distinguished.

The load measurement values are displayed in the bar graph format 1 as shown in FIGS. 8 and 9 instead of the above-mentioned pointer format display 11.
It is also possible to display by 5. Also in this case, a part 1 of the graph format display 12 is operated by operating the operation switch section 7.
2a can be enlarged and displayed. The measured values displayed in this way are not limited to loads and elongations, and measured values of various factors such as bending moment and creep can be used according to the purpose of material testing. For example, it is naturally possible to display the relationship between the load and the time in the form of a graph or the relationship between the elongation and the time in the form of a graph. Although the liquid crystal display device 6 is used as the display device in the above embodiments, the present invention is not limited to this, and any electro-optical display device such as a cathode ray tube display device, a plasma display device or an LED display device can be used. Can be used.

[0016]

As is apparent from the above description, according to the present invention, since an electro-optical display device is used as a display device, a mechanical drive unit is not required, and therefore the failure rate is significantly increased. Since both the analog display and the graphic display are simultaneously displayed on the same display screen, both display can be visually recognized very easily. Furthermore, it is possible to easily change the display mode as necessary by operating the operating device.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire embodiment of a measurement value display device of a material testing machine according to the present invention.

FIG. 2 is a block diagram showing each element of the embodiment.

FIG. 3 is a schematic diagram showing an example displayed on a display screen of an electro-optical display device.

FIG. 4 is a schematic diagram when the display mode of the display example of FIG. 3 is changed by an external operation.

FIG. 5 is a schematic diagram when a part of a graph format display is enlarged and displayed by an external operation.

FIG. 6 is a schematic view showing an example of another display mode.

FIG. 7 is a schematic diagram when the display mode of FIG. 6 is changed by an external operation.

FIG. 8 is a schematic diagram showing an example of another analog display mode.

9 is a schematic view when the display mode of FIG. 8 is changed by an external operation.

[Explanation of symbols] 1 material testing machine 6 electro-optical display device 7 operating device 10 data processing device 11 analog format display 12 graph format display

Claims (5)

[Claims] 1. A data processing device for generating an electric signal for displaying measured values in an analog format display and a graph format display based on at least two measurement data from a material testing machine, and at least one display screen. Having an electro-optical display device that simultaneously displays the analog format display and the graph format display on the one display screen based on the electrical signal, and at least one of the analog format display and the graph format display by an external operation. A measurement value display device for a material testing machine, comprising: an operation device for sending a command for changing a display mode to the data processing device. 2. The measurement value display device for a material testing machine according to claim 1, wherein the analog format display displays a load applied to the material of the material testing machine in a pointer format. 3. The measurement value display device for a material testing machine according to claim 1, wherein the analog format display displays the load applied to the material of the material testing machine in a bar graph format. 4. The operating device is capable of sending an enlargement command for enlarging a part of the graph format display, and the electro-optical display device is adapted to enlarge the graph form display based on the expansion command. The measurement value display device for a material testing machine according to claim 1, wherein a part and the graph format display are simultaneously displayed. 5. The analog format display and the graph format display are overlapped with each other in substantially the same area of the display screen in a state where one display density is high and the other display density is low. The measurement value display device of the material testing machine according to claim 1.