JPH011969A - probe - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION C. INDUSTRIAL APPLICATION FIELD The present invention relates to a probe for indirectly connecting a measurement channel of a measuring instrument to a measurement point of an electrical circuit to be measured.

[Prior Art] FIG. 10 shows the external appearance of a conventional probe of this type, which is used for measuring equipment such as an oscilloscope. In the figure, numeral 2 is the probe body;
It is connected to a connection member of an input terminal of a measurement channel of a measuring device via a connection member (not shown) connected to the cord 3 of the lead wire and its rear end. At the tip of the probe body 2,
A cap 1 for a clip is removably fitted to connect a terminal conductor (not shown) whose tip is bent in a U-shape to a thin terminal such as an IC terminal as a measurement point of an electric circuit. It has become.

In the fitted state, the cap 1 is moved in the direction of arrow e by pushing its flange 1a, and the above-mentioned terminal conductor (not shown) protrudes from the tip, so that it can be fitted onto an IC terminal or the like.

In addition, a terminal conductor bottle with a sharp tip for contacting and connecting to a measurement point of an electric circuit is implanted in the tip (not shown) of the probe body 2, and a cap 1 is fitted onto the pin.
It is designed to be connected to the terminal conductor of the

With this structure, the probe is connected to the measurement point by hooking the terminal conductor of the cap I to the measurement point of the electric circuit, or by removing the cap 1 and bringing the pin of the probe body 2 into contact with the measurement point. will be carried out.

[Problems to be Solved by the Invention]Measuring instruments such as oscilloscopes have a plurality of measurement channels. A plurality of the above-mentioned probes are used, each being connected to one of a plurality of channels. In that case, probes of the same model, that is, probes with exactly the same appearance, are usually used.

However, if the external appearance of each probe is exactly the same, it is not possible to immediately identify which probe is connected to which measurement channel at first glance, and it is necessary to follow code 3 to confirm. There is a problem in that it is time-consuming to perform this every time as necessary during measurement, and the measurement cannot be carried out efficiently.

[Means for Solving the Problems] In order to solve these problems, according to the present invention, in a probe used by being connected to one of the channels of a measuring instrument having a plurality of measuring channels, A structure is adopted in which the main body is provided with a display section that displays a display for identifying the measurement channel to which the main body is connected.

[Function] According to such a structure, when using a probe, the measurement channel to which the probe is connected can be immediately identified by simply glancing at the display on the display section.

[Example] Hereinafter, details of an example of the present invention will be described with reference to FIGS. 1 to 9. In addition, in FIGS. 1 to 9, the conventional example 1
Parts common or equivalent to those in Figure 0 are given the same reference numerals, and explanations of the common parts will be omitted or only briefly mentioned. In addition, here, for the sake of simplicity, it is assumed that the probe of the embodiment is connected to a measurement device having two measurement channels.

FIG. 1 shows the external appearance of a probe according to a first embodiment of the present invention with the cap 1 removed. The basic structure of this probe is the same as that of the conventional example described above, and the probe body 2 is connected to a measurement channel of a measuring instrument (not shown) via a cord 3, and a cap 1 is attached to an end 2a of the probe body 2. It is removably fitted. The probe is connected to the measurement point by clipping it as described above with the cap 1 fitted, or by removing the cap 1 and contacting the measurement point with the bottle 4 implanted in the tip 2a.

By the way, the probe of this embodiment differs from the conventional example in that the probe body 2 has the following structure.
A display unit is provided for displaying information to identify the measurement channel to which the measurement channel is connected.

That is, first, as shown in FIG. 2, the diameter of the intermediate portion of the substantial portion of the probe body 2 excluding the tip portion 2a is smaller than that of both ends, and a recessed portion 2b is formed. Recess 2
In the center of b, there are "rchl" and "rch2" for identifying the measurement channel of the measuring device connected to the probe body 2.
” are provided along the circumferential direction of the probe body 2 by printing or pasting a sticker. Of course, "rchl" indicates the first channel of the measurement channel,
"rch2" indicates the second channel.

A display cover 6 formed in a cylindrical shape as shown in FIG. 3 is fitted onto the recess 2b as shown in FIG.
It is provided rotatably in the directions of arrows a and b. A display window 6a is formed in the display section cover 6, and the size of the window 6a is large enough to expose only either one of the identification display 5 of "rchl" or "ch2".

Further, as shown in FIG. 3, protrusions 6b are provided on the inner surface of the display cover 6 near both sides of the window 6a. These protrusions 6b, 6b move the display section cover 6 in the direction a or in the direction b.
By rotating the probe body 2 in the direction, the recess 2b of the probe body 2
It is adapted to be engaged with holes 2c, 2c or 2d, 2d (see Fig. 2) formed in the. This engagement can be released by applying a certain amount of force to the display section cover 6 in the a direction or the b direction.

When the protrusions 6b and 6b engage with the holes 2c and 2c, the display cover 6 is locked at a position where the identification display 5 of ``rchl'' is exposed through the window 6a as shown in FIG. Also, when the protrusions 6b, 6b engage with the holes 2d, 2d, rch2.
The display cover 6 is locked at a position where the display is exposed through the window 6a.

When using the probe of this embodiment with such a structure, when the probe is connected to the first channel or the second channel of the measurement channel of the measuring device, the display cover 6 is moved in the direction a or b depending on the connected channel. direction to switch the identification display 5 to "rchl" or "ch2" and lock the display section cover 6. If the probe of this embodiment is used for measurement in this way, when it is necessary to identify the measurement channel to which the probe is connected during measurement, all one has to do is look at the identification display 5 exposed through the window 6a. can be instantly and easily identified. There is no need to trace code 3 as in the past for identification.
Measurements can be performed extremely efficiently.

Figures 4 to 9 illustrate the structure for the above-mentioned identification display in a probe according to a second embodiment of the present invention.

FIG. 4 shows the probe body 2, and as shown in the figure, the substantial portion of the probe body 2 of this embodiment except for the tip 2a is formed into a uniform cylindrical shape with no step. On the outer periphery of the central part of the probe body 2, "Chl" and r
ch2” identification marks 5 are arranged in the axial direction of the probe body 2.

Then, as shown in FIG. 5, an exterior cover 7 formed in a cylindrical shape is fitted and fixed to the substantial portion of the probe body 2 except for the tip 2a. In the center of the exterior cover 7, there is a “chl”
An opening 7a is formed large enough to expose both the identification marks 5 "" and "rch2". The exterior cover 7 is fixed with the opening 7a aligned with the identification display 5.

In the region of the identification display 5, between the exterior cover 7 and the probe body 2, as shown in FIG. It is fitted into the recess 7b (see FIGS. 8 and 9) and is slidably provided in the directions of arrows c and d shown in FIG. .

As shown in FIG. 6, a window 8a is formed in the center of the display cover 8 and is large enough to expose only one side of the identification display 5. Further, on the inner surface of the display cover 8, there are protrusions 8b, 8.
b is formed.

The display cover 8 is locked by engaging the protrusions 8b, 8b into the holes 2e, 2e or 2f, 2f (see FIG. 4) formed in the probe body 2. This locking is released by applying a certain amount of force to the display section cover 8 in the direction C or d.

° Then, in the position where the projections 8b, 8b are engaged with the holes 2e, 2e and the display cover 8 is locked, the rchl, H identification marks 5 are exposed through the window 8a, as shown in FIG. Ru. That is, in FIG. 6, a region of the window 8a shown by arrow A of the display cover 8 is located in front of "Chl" of the identification display 5, and the cross section of that area is shown in FIG. 8 as the opening of the window 8a. The display of "Chl" is exposed through the . Further, in the display section cover 8, the area indicated by the arrow B is located in front of the display of "ch2", and the display section cover 8 covers the display of "rch2" as shown in the cross section of FIG.

On the other hand, in the position where the projections 8b, 8b are engaged with the holes 2f, 2f and the display cover 8 is locked, "ch2" is inserted through the window 8a.
” identification display 5 is exposed.

According to the structure of the probe of this embodiment, when in use, the display cover 8 is moved in the direction of the arrow C or d to switch the identification display 5 according to the connected measurement channel. can be displayed. Exactly the same effects as in the first embodiment can be obtained.

In the above, the number of measurement channels to which the probe is connected is assumed to be two to simplify the explanation, but if the number of channels is more than that, the identification display 5 is increased accordingly and the position where each channel is displayed is changed. Display section cover 6
It is sufficient if the structure is configured such that 1 to 8 are locked.

In addition, it goes without saying that the channels for identification may be displayed using characters other than those described above, and may also be displayed using symbols, figures, or the like.

[Effects of the Invention] As is clear from the above description, according to the present invention, in a probe used by being connected to any of the channels of a measuring instrument having a plurality of measuring channels, The structure is equipped with a display to identify the connected measurement channel, so the connected measurement channel can be easily identified at a glance on the display, making it easy to perform measurements using a probe. The excellent effect of being able to perform work efficiently can be obtained.

[Brief explanation of the drawing]

1 is a perspective view showing the external appearance of a probe according to a first embodiment of the present invention with the cap removed; FIG. 2 is a perspective view of the probe body in FIG. 1 with the display cover removed; 3 is a perspective view of the display cover in FIG. 1, FIG. 4 is a perspective view of the probe body according to the second embodiment of the present invention, and FIG. 5 is a perspective view of the exterior cover fitted and fixed to the main body. 6 is a perspective view of the display cover provided inside the exterior cover, FIG. 7 is an explanatory diagram of the display state according to the second embodiment, and FIG.
9 is a sectional view taken along the arrow A in FIG. 7, FIG. 9 is a sectional view taken along the arrow B in FIG. 7, and FIG. 10 is a perspective view showing the external appearance of a conventional probe. 1... Cap 2... Probe body 3...
・Code 4...Pin 5...Identification display
6.8... Display section cover 7... Exterior cover

Claims (1)

[Claims] 1) In a probe used by being connected to any of the channels of a measuring device having a plurality of measurement channels, an indication on the main body of the probe for identifying the measurement channel to which the main body is connected. A probe characterized in that it is provided with a display section that performs. 2) The probe according to claim 1, wherein the display on the display section is switchable.