JP2709092B2 - Spectrum 3D display method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a three-dimensional spectrum that displays a plurality of two-dimensional spectrum waveforms measured under various conditions simultaneously on a display screen such as a CRT. Display method.

[Prior Art] Generally, in an optical spectrum analyzer, a light level value at each wavelength is measured by a light receiver while rotating a spectroscopic element such as a diffraction grating by a stepping motor or the like, and as shown in FIG. , The two-dimensional display is performed on the display screen of the CRT with the wavelength λ as the horizontal axis and the level value (spectrum level) at each wavelength as the vertical axis. Then
A two-dimensional spectrum waveform 1 can be obtained as a two-dimensional spectrum waveform of a spectrum change caused by a lapse of time of the device under test or a change in the environment of the device under test.

However, in general, in such an optical spectrum measurement, the above-mentioned conditions are changed and the measurement is performed a plurality of times, and a change in a peak level, a change in a peak wavelength, etc. in each two-dimensional spectrum waveform under each measurement condition may be observed. Many.

In order to respond to such demands, in recent optical spectrum analyzers, as shown in FIG. 22, each two-dimensional spectrum waveform ₁₁ , 1 ₂ ,.
... A three-dimensional spectrum display method of sequentially shifting 1 _n on the same display screen is used. That is, the wavelength of each two-dimensional spectrum waveform 1 is set as the horizontal axis (X axis) on the display screen, and the level value at each wavelength is set as the vertical axis (Y
, And a variable of the measurement condition indicated by, for example, a waveform number is a depth axis (Z-axis) intersecting the display screen.

By simultaneously displaying a plurality of two-dimensional spectrum waveforms (hereinafter abbreviated as waveforms) 1 having different measurement conditions on the display screen in this manner, each waveform 1
It can be grasped immediately how the peak in has changed.

Further, as shown in FIG. 23, by displaying marks 2 at each waveform position corresponding to the particular wavelength of interest, how the level value of each waveform 1 at the particular wavelength changes in response to the change in the measurement conditions. It is visually grasped whether or not it has been done.

[Problems to be Solved by the Invention] However, as shown in FIGS. 22 and 23, the following problems still exist in the spectrum three-dimensional display method for displaying a plurality of waveforms 1 three-dimensionally for each measurement condition. There is. That is, as shown in FIG. 23, the level fluctuation when the measurement condition at the specific wavelength of each waveform 1 is changed can be visually grasped, but the depth axis (Z Since the axis (axis) is indicated by a straight line rising to the right on the display screen, it is difficult to quantitatively grasp the level change of a specific wavelength in each waveform from the waveform 1 displayed on the CRT display screen.

Therefore, in order to quantitatively grasp the fluctuation of each peak value of each waveform 1 and the fluctuation of the level value at the specific wavelength, each measurement data at the specific wavelength of each waveform 1 is extracted and the level of each measurement data is obtained. It was necessary to calculate and display the fluctuation separately. Therefore, in order to obtain these fluctuation values from FIG. 22 or FIG. 23, it is necessary to execute a large amount of calculation and then display them, and thus there is a problem that necessary information cannot be obtained quickly.

The present invention has been made in view of such circumstances, and by devising a method of setting the coordinate axes on the display screen, the level value of each waveform at each wavelength or frequency can be quantitatively grasped, and the measurement condition change. It is an object of the present invention to provide a three-dimensional spectrum display method capable of immediately grasping a quantitative level change corresponding to the above.

Further, it is an object of the present invention to provide a spectrum three-dimensional display method in which a waveform position corresponding to a designated wavelength or frequency value can be easily grasped by a mark, and a level value of each waveform represented by the marker can be more easily grasped. With the goal.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a two-dimensional spectrum waveform in which each level value at each first variable value is enveloped by using wavelength or frequency as a first variable. In a three-dimensional spectrum display method in which a plurality of measurement conditions are simultaneously drawn on a display screen of a display unit for each second variable value as a second variable, the second variable is displayed on a horizontal axis on the display screen, and each two-dimensional A plurality of two-dimensional spectrum waveforms are displayed on the display screen, with each level value of the spectrum waveform being on the vertical axis and the first variable being a depth axis intersecting with the display screen.

Further, a marker indicating a waveform position corresponding to an arbitrarily designated first variable value is displayed on each two-dimensional spectrum waveform. Further, the displayed adjacent markers are connected by connecting lines.

Further, each level value of each two-dimensional spectrum waveform designated by each marker is displayed on the display screen together with the designated first variable value. Furthermore, while arbitrarily designated markers among the markers are displayed as relative markers,
Each relative value of the level value of each marker with respect to the level value of the relative marker is displayed on the display screen.

Further, a level scale including a plurality of horizontal lines for reading the level value of each waveform at each marker is displayed in a plane including each marker and parallel to the vertical axis. Further, in each of the two-dimensional spectrum waveforms, each waveform portion located on the origin side of the coordinate composed of the horizontal axis, the vertical axis, and the depth axis from each marker is selectively deleted.

[Operation] With the above-described spectrum three-dimensional display method,
The first variable of the wavelength or frequency of each two-dimensional spectrum waveform is on the depth axis (Z-axis) on the display screen, and the second variable indicating the measurement condition between each two-dimensional spectrum waveform is on the display screen. The horizontal axis (X axis) is set, and the level value of each waveform is set on the vertical axis (Y axis).

Therefore, when the first variable of the wavelength or frequency is fixed and the level value of each waveform is examined when the measurement conditions are changed, by quantitatively examining the vertical fluctuation in the direction parallel to the horizontal axis, Level fluctuation is obtained.

When one first variable value is designated, each waveform position corresponding to the designated first variable value is displayed as a marker on each waveform. Furthermore, each marker is described in a state where it is connected by a connection line.

Further, each level value of each waveform displayed as a marker is separately displayed together with a first variable value corresponding to the marker. Further, when one of the markers is designated as a relative marker, the corresponding relative marker is displayed, and each of the level value corresponding to the relative marker and each level value corresponding to each of the other markers are displayed. The relative value is displayed. Therefore, comparison of each level value at each marker position becomes easier.

Further, since the level scale is described in a plane including each marker position and parallel to the vertical axis, each level value at each marker position can be more easily grasped.

In addition, since each waveform portion existing before each marker position in each two-dimensional spectrum waveform is selectively deleted, the quantitative value of each level value at each marker position can be more easily confirmed.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a block diagram showing a schematic configuration of an optical spectrum analyzer to which the three-dimensional spectrum display method of the embodiment is applied. This optical spectrum analyzer is broadly divided into a control unit 3 for controlling the operation of each unit, a spectroscope, etc., and an optical level value (measurement data) at each wavelength of the measured light.
, For example, a motor drive unit 5 that drives and controls a stepping motor 5a that rotationally drives a diffraction grating and the like of the optical unit 4, a display unit 6 that displays various data on a display screen 6b of a CRT display tube 6a, A printer unit 7 for printing data,
It comprises a common memory 8 for storing each measurement data at the wavelength λ inputted from the optical unit 4 for each measurement condition, and a calculation unit 9 for performing calculation processing of various data accompanying display.
Each of the components 3 to 9 is composed of a microcomputer having a CPU and a memory.
It operates according to a predetermined control program in response to application of various interrupt signals.

FIG. 1 is a diagram showing the concept of four basic screens 10a to 10d displayed on the display screen 6b of the CRT display tube 6a of the display unit 6 and a synthesized screen 10e obtained by synthesizing these. The first screen 10a is a scale display screen showing the coordinate axes 11a, 11b, 11c and each scale, and the second screen 10b is a waveform display screen showing a plurality of two-dimensional spectrum waveforms (hereinafter abbreviated as waveforms) 12. Yes, the third screen 10c shows the wavelength marker 13 displayed on each waveform 12.
A fourth screen 10d is a scale / table display screen showing a level scale 15 and a table 16 displaying each data. Then, the display screens 10a to 10d are combined and displayed on the display screen 6b of the CRT display tube 6a.

Note that a depth axis (Z axis) 11c on the first screen 10a indicates a wavelength λ (μm) as a first variable, and a vertical axis (Y axis)
11b indicates a level value (mW), and the horizontal axis (X-axis) 11a indicates waveform numbers 1 to 10 corresponding to the number of measurements as a second variable.

As shown in FIG. 3 (a), when a key signal of a display start key is input from a keyboard (not shown), the control unit 3 applies a three-dimensional display interrupt signal to the display unit 6. Then, the display start processing is ended after waiting for the display end interrupt signal of the scale display from the display unit 6. The display unit 6 to which the three-dimensional display start interrupt signal has been input has the horizontal axis (X-axis) 11a, the vertical axis (Y-axis) 11b, stored in the memory 6d in advance.
The scale value of the depth axis (Z axis) 11c is read out, and each axis 11a, 11
As shown in FIG. 4, the image is displayed on the display screen 6b of the CRT display tube 6a via the frame buffer 6c together with b and 11c. After that, an interrupt signal for ending the scale display is applied to the control unit 3.

After each axis and scale values shown in FIG. 4 are displayed on the display screen 6b, when a measurement start key of a keyboard (not shown) of the control unit 3 is input by a key, as shown in FIG. One measurement condition (waveform number) is designated to the unit 4 and the display unit 6 to transmit a measurement start interrupt signal and a display start interrupt signal. Then, the process is terminated after the measurement and display end interrupt signals are input from the respective units 4 and 6.

The optical unit 4 to which the measurement start interrupt signal is applied reads the measurement start wavelength λ ₀ and the measurement end wavelength λ ₁ from the memory 4c as shown in FIG. Is received by the light receiver 4a, converted into a digital value by the A / D converter 4b, and stored as measurement data in the common memory 8 via the data bus. When measurement data at all measurement wavelengths λ from the measurement start wavelength λ ₀ to the measurement end wavelength λ ₁ is obtained, a measurement end signal is sent to the control unit 3.

The display unit 6, to which the display start interrupt signal has been input, confirms that the measurement data is stored in the common memory 8 as shown in FIG. One measurement data at one wavelength λ is read, the measurement data is converted into the display data on the display screen 6b, and in step (S) 1, the CRT display processing for the display data is executed.

Then, in S2, when the CRT display processing for all the measurement data for one measurement condition stored in the common memory 8 is completed, the display screen 6b of one two-dimensional spectrum waveform 12 under one measurement condition (waveform number) is displayed. Since the display processing has been completed, a display end interrupt signal is sent to the control unit 3. Thus, the control unit 3 determines the next measurement condition (waveform number)
And sends a measurement start and display start interrupt signal to the optical unit 4 and the display unit 6.

FIG. 6 is a flowchart showing the CRT display processing of S1 in FIG. 5 (c). That is, the display data of one point (one wavelength) converted from the measurement data is temporarily stored in the waveform data bank of the corresponding waveform in the memory. Then, the data is compared with the data on the same display dot currently displayed on the display screen 6b. If the input display data is larger than the currently displayed data, the currently displayed data is deleted and the newly input display data is displayed on the display screen 6b. If the display data is smaller than the data being displayed, it is displayed as it is.

Note that other measurement conditions (waveform numbers) are already displayed on the display screen 6b.
When the waveform 12 is displayed, the portion of the previously displayed waveform 12 which is hidden by the shadow of the subsequently displayed waveform 12 is erased, as shown in FIG. Thus, as shown in FIG. 7, each waveform 12 of each measurement condition (waveform number) is displayed on the display screen 6b. Note that each measurement data at each wavelength λ of each waveform 12 is stored in the common memory 8.

Each waveform 12 is displayed on the display screen 6b as shown in FIG.
When the off switch is operated, the display unit 6 performs display / deletion processing of the wavelength marker 13 in accordance with the flowchart shown in FIG. That is, if the wavelength marker 13 is currently being erased in S3, the wavelength λ stored in the wavelength buffer provided in the memory 6d is read, and as shown in FIG. 9, each wavelength λ corresponding to the read wavelength λ is read. Wavelength markers at each waveform position of waveform 12
Display 13. Next, as shown in FIG. 10, the table 16 shown in FIG. 1 is displayed on the display screen 6b, and the measurement data 16a of each waveform 12 corresponding to the wavelength λ of the wavelength buffer is read out from the common memory 8. Are displayed in areas corresponding to the respective waveform numbers 1 to 10 in Table 16. The corresponding wavelength λ is also shown in Table 16.

If the wavelength markers 13 and the measurement data 16a in Table 16 are already being displayed at S3, the currently displayed wavelength markers 1 are displayed.
The wavelength λ corresponding to 3 is stored in the wavelength buffer of the memory 6d. Then, each wavelength marker 13 is deleted. Further, if a later-described level scale 15 in FIG. 1 is being displayed, it is deleted. Next, the measurement data 16a and the wavelength λ displayed in Table 16 are deleted together with Table 16.

Further, as shown in FIG.
When the relative marker on / off switch of the operation panel is operated while the measurement data 16a in Table 12 and Table 16 are displayed, the display unit 6 executes the flowchart shown in FIG. That is, if the relative marker 14 in FIG. 1 is not currently displayed in S4, the waveform number stored in the waveform number buffer formed in the memory 6d is read out, and as shown in FIG. Wavelength marker 13 of waveform 12 corresponding to read waveform number
To the relative marker 14. Then, using the respective measurement data 16a displayed in Table 16, each relative value 16b indicated by the difference of the measurement data of each wavelength marker 13 other than the relative marker 14 with respect to the measurement data of the relative marker 14 is calculated. It is displayed in each area on the right side of each measurement data 16a.

If the relative marker 14 is already being displayed in S4, the waveform number of the waveform 12 currently displayed by the relative marker 14 is stored in the waveform number buffer, and then the displayed relative marker 14 is stored in the wavelength marker 13. change. Further, each relative value 16b displayed in Table 16 is deleted.

As shown in FIG. 9, each waveform 12 is displayed on the display screen 6a.
When the wavelength marker connection on / off switch of the operation panel is operated while the respective wavelength markers 13 are displayed, the display unit 6 executes the flowchart shown in FIG. That is, S5
If the connection line is not currently displayed at, as shown in FIG. 14, the wavelength marker 13 of one waveform 12 existing at the left end
And a connection line 17 connecting the right side and the adjacent wavelength marker 13 of the waveform 12 are displayed. Note that each wavelength marker 13 is subjected to a reverse process. Then, the wavelength marker 13 that is adjacent to the right side sequentially
And the connection lines 17 are sequentially displayed.

If the connection lines 17 have already been displayed in S5, the connection lines 17 are sequentially deleted (cleared) from the left end to the right end.

Also, as shown in FIG. 12, each waveform 12, each wavelength marker 13, relative marker 14 and each measurement data 1 are shown in Table 16 on the display screen 6b.
6a, while the relative value 16b is displayed, when the key of the wavelength marker moving key on the operation panel is operated, the display unit 6
The moving process of the wavelength marker is executed according to the flowchart of FIG.

The flow chart is started, and if the wavelength marker movement key is a movement command to the left (toward the front) in S6, after confirming that the movement is still possible to the left, the designated movement wavelength amount and the wavelength buffer are designated. read the current wavelength corresponding to the marker 13 of, obtaining the destination wavelength lambda _a by subtracting the movement wavelength value from the wavelength was read. When the destination wavelength lambda _A has the above-described larger measurement start wavelength lambda ₀ is moved to the waveform position corresponding wavelengths marker 13 on the movement destination wavelength lambda _A of each waveform 12. Also, if the destination wavelength lambda _A measurement start wavelength lambda ₀ is smaller than moving the wavelength marker 13 to the waveform position corresponding to the measurement start wavelength lambda ₀ of each wavelength 12.

If it is a movement command to the right (rearward direction) in S6, after confirming that the movement is still possible to the right, the wavelength corresponding to the instructed movement wavelength amount and the current wavelength marker 13 of the wavelength buffer is determined. Is read, and a destination wavelength λ _B is obtained by adding a moving wavelength amount to the read wavelength. If the destination wavelength λ _B is smaller than the measurement end wavelength λ ₁ described above, the wavelength marker 1
3 is moved to each waveform position corresponding to each destination wavelength λ _B of each waveform 12. When the destination wavelength λ _B is larger than the measurement end wavelength λ _{1, the} wavelength marker 13 is moved to each waveform position of each waveform 12 corresponding to the measurement end wavelength λ ₁ .

Then, in S7, the measurement data 16a of each waveform 12 corresponding to the wavelength λ at the new wavelength marker position is read from the common memory 8 and displayed in the area corresponding to each waveform number in Table 16.
If the relative marker 14 is being displayed, each relative value 16b is calculated and displayed in the corresponding area of Table 16. Then, when the key operation of the wavelength marker moving key ends, the wavelength marker moving process ends.

Further, as shown in FIG. 12, each waveform 12,
When the relative marker movement key on the operation panel is operated with the respective wavelength markers 13, the relative markers 14 and the respective measurement data 16a and the respective relative values 16b displayed in the table 16, the display unit 6 is displayed as shown in FIG. The moving process of the relative marker is executed according to the flowchart of FIG.

The flow chart is started. If the relative marker movement key is a movement command to the left (to the left of the screen) in S8, it is confirmed that the movement is still possible to the left, and then the displayed relative marker 14 is displayed.
To the wavelength marker 13 and the waveform 12 on the left by one waveform
Is changed to the relative marker 14. If it is a movement command to the right in S8, the currently displayed relative marker 14 is changed to the wavelength marker 13, and the wavelength marker 13 of the waveform 12 on the left side is changed.
To the relative marker 14.

Thereafter, the measured data 16a of the moved relative marker 14 and each wavelength marker 13 is read out from the displayed table 16 or the common memory 8, and the relative value 16b of each wavelength marker 13 is calculated. indicate. When the key operation is completed, the moving process of the relative marker 14 is completed.

Further, as shown in FIG. 9, when the level scale on / off switch of the operation panel is operated in a state where each waveform 12 and each wavelength marker 13 are displayed on the display screen 6b, the display section 6 is displayed. Execute the flowchart in Figure 17.

When the flow chart is started and the level scale 15 is not already being displayed in S9, the division value (div) stored in the level scale buffer of the memory 6d is read, and the wavelength marker 13 being displayed is read from the wavelength buffer. Read the corresponding wavelength λ. Then, as shown in FIG. 18, a level scale 15 having a plurality of horizontal lines 15a shown in FIG. 1 is displayed at the read wavelength position. The horizontal line 15 of this level scale 15
The number of divisions according to a changes according to the division values (div) stored in the level scale buffer, as shown in FIG. The level scale 15 includes each wavelength mark 13 of each waveform 12 and is formed in a plane parallel to the vertical axis 11b. Therefore, the horizontal line 15a of the level scale 15 is parallel to the horizontal axis 11a.

If the level scale 15 is already displayed in S9, the division value (div) of the currently displayed level scale 15 is stored in the level scale buffer, and the displayed level scale 15 is deleted.

Also, as shown in FIGS. 18 (a) and 18 (b), the display screen 6b
If the front waveform erasure on / off switch on the operation panel is operated in a state where each waveform 12, each wavelength marker 13, and the level scale 15 are displayed, the display section 6 executes the flowchart of FIG.

If the flowchart is started and a part of each waveform 12 is not already erased in S10, the measurement start wavelength λ ₀ is read from the common memory 8 and the wavelength marker is read from the wavelength buffer of the memory 6d.
Read out the wavelength corresponding to 13. Then, the measurement start wavelength λ ₀
Is initialized as a count value E in the counter. Thereafter, the display data of each waveform 12 being displayed corresponding to the wavelength E of the count value of the counter is read, and all the read display data is subjected to the reverse processing and displayed (erased). Then, 1 is added to the count value E, and the reverse display process is repeated. When the count value E reaches the wavelength of the wavelength marker 13, the
As shown in FIG. 20 (b), each waveform 12 existing before the position of the waveform marker 13 of each waveform 12, that is, from the position of the wavelength marker 13 to the horizontal axis 11a is deleted.

At S10, as shown in FIG. 20 (b), when a part of each waveform 12 has been erased, the measurement start wavelength λ ₀ is read from the common memory 8 and the wavelength buffer The wavelength corresponding to the wavelength marker 13 is read from. And
The measurement start wavelength λ ₀ is initialized in the counter as the count value E. Thereafter, the display data of each waveform 12 in the reverse display corresponding to the wavelength E of the count value of the counter is read, and all the read display data in the reverse display is subjected to the reverse processing again to be displayed (redisplayed). Then, 1 is added to the count value E, and the above-described redisplay processing is repeated. When the count value E reaches the wavelength of the wavelength marker 13, FIG.
As shown in the figure, before the position of the waveform marker 13 of each waveform 12,
That is, each waveform 12 existing from the position of the wavelength marker 13 to the horizontal axis 11a is displayed again. That is, the display on the display screen 6b can be arbitrarily changed as shown in FIG. 20 (a) or FIG. 20 (b) by operating the front waveform erasing on / off switch.

In the case of the spectrum three-dimensional display method configured as described above, as shown in FIG. 7, the wavelength as the first variable of each two-dimensional spectrum waveform 12 is the depth axis (Z axis) on the display screen 6b. 11c shows the number of times of measurement (wavelength number) of 1 to 10 as a second variable indicating the measurement conditions between the respective waveforms 12
Is set on the horizontal axis (X-axis) 11a on the display screen 6b, and the level value (measurement data) of each waveform 12 is set on the vertical axis (Y-axis) 11b.

Therefore, when examining the level value (measurement data) of each waveform 12 when the wavelength is fixed to an arbitrary value and the number of measurements (waveform number) is changed, examine the vertical fluctuation in the direction parallel to the horizontal axis 11a. As a result, the level fluctuation can be obtained quantitatively.

Incidentally, according to the conventional display method shown in FIG. 22 or FIG. 23, since the reference scale is inclined with respect to the horizontal axis of the display scene, it is necessary to quantitatively grasp each level of each waveform at the same wavelength. Is very complicated, and a reading error easily occurs.

When one wavelength is designated, each waveform position corresponding to the designated wavelength is displayed by a wavelength marker 13 in each waveform 12 as shown in FIG.
Therefore, the designated position in each waveform 12 can be immediately grasped.

Further, as shown in FIG. 14, it is also possible to display in a state where each wavelength marker 13 is connected by each connection line 17 by operating a switch on the operation panel. When each wavelength marker 13 is connected by the connection line 17 in this manner, how each level value changes in response to a change in each measurement condition (waveform number) is displayed in a graph, and the level fluctuation is displayed. More accurate judgment can be made at a glance.

Further, as shown in FIG. 10, each level value (measurement data) 16a of each waveform 12 indicated by the wavelength marker 13 is indicated in Table 16 together with the corresponding wavelength. So, in this case,
There is no need to read each measurement data 16a directly from the waveform 12.
Therefore, a more accurate quantitative level value can be obtained.

Further, one wavelength marker 13 of each wavelength marker 13
Is designated as a relative marker 14, as shown in FIG. 12, the corresponding relative marker 14 is displayed and the level marker (measurement data) 16a corresponding to each of the other wavelength markers 13 corresponds to the relative marker 14. Table 16 shows each relative value 16b for the level value (measurement data). Therefore, comparison of each level value (measurement data) at the position of each wavelength marker 13 becomes easier.

The wavelength position of the wavelength marker 13 and the waveform 12 to which the relative marker 14 is set can be easily moved or selected by an operation on the operation panel.

Further, as shown in FIG. 18, it is possible to display a level scale 15 including a plurality of horizontal lines 15a in a plane including each wavelength marker 13 position and parallel to the vertical axis 11b. Each level value (measurement data) can be grasped more easily.

Further, as shown in FIGS. 20 (a) and (b), by operating the operation panel, each of the waveform portions existing in front of each of the wavelength markers 13 in each of the waveforms 12 is selectively erased.
The quantitative value of each level value (measurement data) at the position of each wavelength marker 13 described in the waveform of the portion hidden by the waveform can be more easily confirmed.

[Effects of the Invention] As described above, according to the spectrum three-dimensional display method of the present invention, variables of measurement conditions such as the number of times of measurement of each two-dimensional spectrum waveform are set on the horizontal axis of the display screen, and wavelength or frequency variables are set. By taking the depth axis, the level value of each waveform at each wavelength or frequency can be quantitatively grasped, and a quantitative level change corresponding to a change in measurement conditions can be grasped immediately.

In addition, the position of the waveform corresponding to the designated wavelength or frequency value can be easily grasped with a marker, and the level value of each waveform represented by the marker can be determined by using the level value itself, a relative marker,
By displaying the relative value, the level scale, and the like, it is possible to more easily understand.

Further, since a portion in front of the marker of each waveform can be selectively deleted, the level value at each marker position can be grasped more accurately.

[Brief description of the drawings]

FIGS. 1 to 20 show an optical spectrum analyzer to which the spectrum three-dimensional display method of the present invention is applied. FIG. 1 is a conceptual view of each data displayed on a display screen, and FIG. FIG. 3 is a flowchart showing each coordinate axis, FIG. 4 is a diagram showing the displayed coordinate axes, FIGS. 5 and 6 are flowcharts showing measurement,
FIG. 7 shows the displayed waveforms, FIG. 8 shows a flowchart for displaying the wavelength markers, FIGS. 9 and 10 show the displayed wavelength markers, and FIG. 11 shows the relative markers. Flow diagram, FIG. 12 is a diagram showing the displayed relative markers, FIG. 13 is a flowchart showing the connection lines, FIG. 14 is a diagram showing the displayed connection lines, FIG. 15 and FIG. 16 are the wavelength markers and FIG. 17 is a flowchart showing the movement of the relative marker, FIG. 17 is a flowchart showing the level scale, FIG. 18 is a diagram showing the displayed level scale, FIG. 19 is a flowchart showing the deletion of a part of the waveform, and FIG. FIG. 21 is a diagram showing a waveform in which a part is deleted, FIG. 21 is a diagram showing a displayed general two-dimensional spectrum waveform, FIG.
FIG. 23 and FIG. 23 are diagrams showing a plurality of two-dimensional spectrum waveforms displayed three-dimensionally in the conventional method. 3 ... control unit, 4 ... optical unit, 5 ... motor drive unit, 6
…… Display unit, 6b …… Display screen, 8 …… Common memory, 11…
... scale, 11a ... horizontal axis, 11b ... vertical axis, 11c ... depth axis, 12 ... two-dimensional spectrum waveform, 13 ... wavelength marker, 14 ... relative marker, 15 ... level scale, 16 ...
Table, 17 ... Connection line.

Claims (6)

(57) [Claims] 1. A method according to claim 1, wherein each wavelength or frequency is a first variable.
A plurality of two-dimensional spectrum waveforms (12) enveloping each level value in the variable values of the above are simultaneously displayed on the display screen (6b) of the display unit for each second variable value using one measurement condition as a second variable. In the three-dimensional display method for drawing a spectrum, a horizontal axis (11a) on the display screen represents the second variable.
The level values of the two-dimensional spectrum waveforms are set on a vertical axis (11b), and the first variable is set on a depth axis (11c) intersecting the display screen. A spectrum three-dimensional display method for displaying on a display screen a marker (13) indicating a waveform position corresponding to an arbitrarily designated first variable value on each of the two-dimensional spectrum waveforms. 2. A connecting line (17) for connecting between adjacent markers displayed on each two-dimensional spectrum waveform.
The three-dimensional spectrum display method according to claim 1, wherein is displayed. 3. The display screen displays each level value (16a) of each two-dimensional spectrum waveform corresponding to an arbitrarily designated first variable value, together with the designated first variable value. The described spectrum three-dimensional display method. 4. A arbitrarily designated marker among the markers is displayed as a relative marker (14), and a relative value (16b) of the level value of each marker with respect to the level value of the relative marker is displayed. Claim 3 to display on the screen
The described spectrum three-dimensional display method. 5. A level scale (15) comprising a plurality of horizontal lines (15a) for reading the level value of each waveform at each marker in a plane containing each marker and parallel to the vertical axis.
The three-dimensional spectrum display method according to claim 1, wherein is displayed. 6. A method according to claim 5, wherein, of said two-dimensional spectrum waveforms, each waveform portion located on the origin side of coordinates of said horizontal axis, vertical axis and depth axis from said marker is selectively erased. Spectrum 3D display method.