JP3181064B2 - Measurement condition setting method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a measuring condition setting method for improving the operability of setting the measuring conditions of a measuring device such as a network analyzer when the measuring device has a plurality of measuring channels.

[0002]

2. Description of the Related Art It is often the case that relatively complicated measurement conditions are set in a measuring instrument and these conditions are stored in the measuring instrument in the form of a table. Of course, the measurement conditions are not limited to this. For example, the measurement conditions set for the measurement using the list sweep in the network analyzer are stored in the table.

In the list sweep, instead of sweeping over one frequency band, for example, 10 sweeps are performed.
The measurement is performed by sweeping a plurality of frequency bands such as kHz to 100 kHz and 500 kHz to 5 MHz.

In a network analyzer having a plurality of channels, a stimulus signal subjected to a list sweep as described above is supplied to a measurement target (DUT), and various response signals from the DUT are observed in each channel.

In a conventional measuring instrument, as shown in FIG. 2, a single table 201 in which a set of set measurement conditions is written is stored in all channels Ch1, Ch2, Ch.
3. Commonly applied to Ch4. However, the properties of the signals provided to each channel and the requirements for observation thereof are not necessarily the same . In such a measuring instrument, different measurement conditions cannot be set for each channel, and there is a problem that the degree of freedom in setting measurement conditions is small.

In another conventional measuring device, a plurality of such tables 301, 303, 305, 307 are provided, and one table is fixedly associated with each of the measurement channels Ch1, Ch2, Ch3, Ch4. Was. With such a configuration, the above-described problem regarding the degree of freedom in setting conditions is solved. However, for the relatively common situation where you want to set the same measurement conditions for all channels, the inefficient operation of setting the same set of measurement conditions in multiple tables one by one Is required.

[0007]

An object of the present invention is to solve the above-mentioned problems of the prior art, and to set the same measurement conditions for a plurality of channels while ensuring the freedom of setting the measurement conditions for each channel. An object of the present invention is to provide a measurement condition setting method that does not require any operation.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, in the measurement condition setting method of the present invention, a plurality of measurement channels and a plurality of measurement condition setting tables are provided, and the correspondence between the measurement channels and the measurement condition setting tables is arbitrary. Can be set to.

[0010]

FIG. 1 is a conceptual diagram of an embodiment of a measuring condition setting method according to the present invention.

In FIG. 1, four measurement channels Ch1, Ch2, Ch3, and Ch are used as in the prior art shown in FIG.
Four and four tables 101, 103, 105, 107 are provided. (Of course, the number “4” is merely an example, and can be increased or decreased as needed.) In FIG. 3, a fixed one-to-one correspondence between the measurement channel and the table is set in advance. Although set in this embodiment, this correspondence can be freely and dynamically set by the user via a keyboard or the like as shown in FIG.

For example, when separate settings are made for the measurement channels Ch1 to Ch4, the table 101 is stored in Ch1, the table 103 is stored in Ch2, and the table 103 is stored in Ch2, as in FIG.
3 is a table 105, and Ch4 is a table 10
7 can be associated.

When it is desired to make the same setting for the measurement channels Ch1 to Ch4, the measurement conditions are written in the table 101, for example, and all the measurement channels Ch1 to Ch4 are associated with the table 101 as in FIG. I just need.

[0009] Even when common settings are made for some measurement channels and individual settings are made for the remaining measurement channels one by one, the tables 101 to 10 adapted to them are set.
7 can be set and associated.

As a specific method of setting the table, a conventional method can be used as it is. Also,
As a method of realizing the setting of the correspondence between the table and the measurement channel, for example, a correspondence table that stores the correspondence between the measurement channel and the table is separately provided, and the actual data of the measurement condition of each measurement channel is stored. When it becomes necessary, the table associated with each measurement channel is identified by referring to the correspondence table, and the necessary measurement conditions may be read out from the table toward the corresponding measurement channel.

Although the present invention can of course be realized by using all hardware, it is usually convenient to realize mainly by software. In this case, the table is placed on the RAM. A routine for associating a table with a measurement channel can also be created with ordinary knowledge of those skilled in the art.

In the above embodiment, the number of measurement channels and the number of tables in which sets of measurement conditions are set are the same, but the present invention is not limited to this.

For example, when the number of tables is smaller than the number of measurement channels, there is no complete independence between the measurement channels in setting the measurement conditions. Nevertheless, as compared with the first conventional example shown in FIG. Large degree of freedom can be ensured, and the problem seen in the second conventional example shown in FIG. 3 can be completely solved.

Conversely, when the number of tables is larger than the number of measurement channels, the problems of the prior arts can be completely solved, and the table is used even when measurement is performed using all measurement channels. Since there are no tables, for example, the measurement conditions that are not used in the current measurement but are used later (for example, the measurement conditions used in the previous measurement) are stored, and it becomes necessary Thus, the correspondence between the channel and the table can be re-assigned to use this table immediately, so that the operability is further improved. Such a method of using an empty table is of course possible even when the number of tables is equal to or less than the number of measurement channels.

The measurement conditions in the table can be downloaded to a storage medium such as a floppy disk, or uploaded from such a storage medium instead of inputting from a keyboard.

[0016]

As described above in detail, according to the present invention, the user of the measuring instrument can independently set the measurement conditions for each channel, and can set a set of measurement conditions for a plurality of channels. Since it can also be used in common, it is possible to set convenient and convenient conditions for various accurate measurements.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram illustrating an embodiment of the present invention.

FIG. 2 is a diagram showing a first conventional example.

FIG. 3 is a diagram showing a second conventional example.

[Explanation of symbols]

101, 103, 105, 107, 201, 301, 3
03, 305, 307: tables Ch1, Ch2, Ch3, Ch4: measurement channels

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification code FI G01R 15/12 G01R 15/12 Z 23/16 23/16 Z 23/173 23/173 Z (58) Fields surveyed (Int. Cl. ^7, DB name) G01R 27/28 G01R 13/20 G01R 13/22 G01R 13/28 G01R 15/12 G01R 23/16 G01R 23/173

Claims (3)

(57) [Claims] A plurality of measurement channels; Multiple measurement conditions to set up these measurement channels
Each set of settings is individually stored as a measurement condition setting table.
Measurement conditions in a measuring instrument with storage means to be stored
Setting method, The plurality of measurement channels and individual measurement condition setting data
Information that identifies the correspondence with the table is a correspondence table
Stored in the storage means, Loading a set of measurement condition settings to a measurement channel
In the measurement condition setting table corresponding to the measurement channel,
The information for identifying which one is read from the correspondence table.
The corresponding measurement according to this read-out information
The condition setting table is selected, and the selected measurement condition
According to the set of measurement condition settings stored in the setting table
That the setting of the measurement channel is performed
Characteristic, measurement condition setting method. 2. One of the measurement condition setting tables
Measurement of two or more of the plurality of measurement channels
The correspondence table is created so that the channels are corresponded.
The measurement condition according to claim 1, wherein the measurement condition is established.
Setting method. 3. Currently used for any measurement channel
Set of measurement conditions that are not available but may be used in the future
Is stored in the measurement condition setting table, and the set of the measurement condition setting is stored.
When the measurement is required, the set of measurement condition settings is required.
Measurement channel storing a set of measurement channels and the measurement condition settings
Set the correspondence with the setting table in the correspondence table
Claim 1 or Claim 2, characterized in that the
The measurement condition setting method according to claim 2.