JPH05312836A - Output screen display device of oscilloscope - Google Patents

Abstract

PURPOSE:To provide an output screen display device of oscilloscope which can read the value of output waveform easily. CONSTITUTION:Output of an input waveform data display circuit 3, output of a voltage value display circuit 4, and output of a time value display circuit 5 are synthesized by an output screen control circuit 6 to display it on an output display screen 1. An oscilloscope control section 7 changes output of the voltage value display circuit 4 and the time value display circuit 5, corresponding to the settings of vertical sensitivity, vertical position, time coefficient, horizontal position, and trigger point by an operation panel 2. Numeric of voltage value and time value which are displayed by the changes of output and display position are changed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an output screen display device such as an analog oscilloscope or a digital oscilloscope used for waveform observation.

[0002]

2. Description of the Related Art In recent years, an oscilloscope has a function of automatically reading a value at an arbitrary point of an output waveform and displaying it as a numerical value, which assists the reading of the output waveform.

FIG. 3 shows the configuration of a conventional output screen display device of an oscilloscope. As shown in FIG. 3, the output of the input waveform data display circuit 101 and the output of the voltage / time cursor display circuit 102 are combined by the output screen control circuit 103 and displayed as an output display screen 104.
Here, the oscilloscope control unit 105 operates the operation panel 1
The output of the voltage / time cursor display circuit 102 is changed corresponding to the positions indicated by the voltage cursor 107 and the time cursor 108 operated by 06, and the voltage value 109, the time value 1
Change 10

As described above, in the above-mentioned conventional output screen display device of the oscilloscope, the value of a certain point is displayed by the voltage cursor 10.
7. The value of any other point can be known by reading with the time cursor 108 and reading and converting the scale of the scale grating 111 with the point as a reference.

[0005]

However, in the configuration of the conventional example as described above, when the points indicated by the voltage cursor 107 and the time cursor 108 do not match the scale of the scale grating 111, the scale values of other points are set. Is difficult to read, and the read scale value has to be converted according to the set range, which is troublesome.

The present invention solves such a conventional problem, and makes it possible to easily read the value of the output waveform without reading the scale of the scale grating or converting the scale value. It is an object of the present invention to provide an output screen display device of an oscilloscope.

[0007]

In order to achieve the above-mentioned object, the present invention provides an input waveform data display circuit for displaying input waveform data and a voltage value display for displaying a voltage value. An output screen control circuit for synthesizing a circuit, a time value display circuit that outputs to display a time value, and the outputs of the input waveform data display circuit, the voltage value display circuit, and the time value display circuit, and displaying them on the output display screen. , And the output of the above voltage value display circuit and time value display circuit in conjunction with the operation of the vertical sensitivity adjustment knob, vertical position adjustment knob, sweep time adjustment knob, and horizontal position adjustment knob on the operation panel. And a control unit that controls to change the numerical value of the voltage value and the time value displayed on the display and the display position.

[0008]

Therefore, according to the present invention, the output screen control circuit combines the outputs of the input waveform data display circuit, the voltage value display circuit and the time value display circuit and displays them on the output display screen. By controlling the control unit, it is possible to display the vertical sensitivity, trigger position, sweep time, vertical position, and voltage value and time value corresponding to the horizontal position setting on the output display screen. However, the value of any point of the waveform can be immediately read by the voltage value and the time value displayed corresponding to the setting.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic configuration diagram showing an output screen display device of an oscilloscope in one embodiment of the present invention.

In FIG. 1, reference numeral 1 is an output display screen composed of a CRT, and 2 is an operation panel. An input waveform data display circuit 3 outputs the input waveform data for displaying on the output display screen 1, and has an output waveform voltage data component display circuit and an output waveform time data component display circuit.
Reference numeral 4 is a voltage value display circuit for outputting the voltage value of the waveform output from the input waveform data display circuit 3 to display it on the output display screen 1, and 5 is a time value of the waveform output from the input waveform data display circuit 3. A time value display circuit that is output for displaying on the output display screen 1, 6 is an input waveform data display circuit 3,
It is an output screen control circuit that combines the outputs of the voltage value display circuit 4 and the time value display circuit 5 and displays them on the output display screen 1, and has a vertical component display circuit and a horizontal component display circuit. Reference numeral 7 denotes an oscilloscope control unit that changes the outputs of the voltage value display circuit 4 and the time value display circuit 5 in association with the operation of each knob of the operation panel 2 to display the voltage value and the time value displayed on the output display screen 1. The output screen control circuit 6 is controlled so as to change the numerical value and the display position.

The output screen display device configured as described above will be described in more detail with reference to the operation of the display screen display device shown in FIG.

The output of the input waveform data display circuit 3, the output of the voltage value display circuit 4, and the output of the time value display circuit 5 are combined by the output screen control circuit 6 and displayed on the output display screen 1. As an example thereof, a CH1 output waveform 11 is displayed on the output display screen 1 and a CH1 voltage display 13 displaying the voltage of CH1 at each position at an arbitrary interval with GND as a reference.
Is displayed. Then, the numerical value of the CH1 voltage display 13 changes in accordance with the operation of the CH1 vertical sensitivity adjustment knob 21 of the operation panel 2, and moves up and down corresponding to the operation of the CH1 vertical position adjustment knob 22. Further, the CH1 time display 15 showing the time of CH1 at each position is displayed at an arbitrary interval with the trigger time as a reference. Then, the numerical value of the CH1 time display 15 changes in accordance with the operation of the CH1 sweep time adjusting knob 23, and moves to the left or right corresponding to the horizontal position adjusting knob 24. Further, on the side opposite to the information value display of CH1, the CH2 voltage display 1 for the output waveform 12 of CH2 is displayed.
4 and CH2 time display 16 are similarly displayed corresponding to the settings made by the operations of the CH2 vertical sensitivity adjustment knob 25, the CH2 vertical position adjustment knob 26, the CH2 sweep time adjustment knob 27, and the horizontal position adjustment knob 24.

In the above embodiment, CH1 voltage display 1
3 and the CH2 voltage display 14 are displayed at mutually opposite positions, but they may be distinguished by different colors or by shifting the positions to the left and right. Similarly, the CH1 time display 15 and the CH2 time display 16 may also be distinguished by different colors or by shifting the positions vertically.

[0015]

As described above, according to the present invention, the outputs of the input waveform data display circuit, the voltage value display circuit and the time value display circuit are combined by the output screen control circuit and displayed on the output display screen. You can display the voltage value and time value that correspond to the vertical sensitivity, trigger position, sweep time, vertical position, and horizontal position settings on the output display screen by controlling the control unit that accompanies the operation of the knob. Even if it is displayed with any setting, the value of any point of the waveform can be immediately read by the voltage value and the time value displayed corresponding to the setting. Therefore, the value of the output waveform of the oscilloscope can be easily read without the effort of reading and converting the scale grid scale value based on the point indicated by the voltage cursor or the time cursor as in the past. ..

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an output screen display device of an oscilloscope according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a display example by the output screen display device of the oscilloscope.

FIG. 3 is a schematic configuration diagram showing an output screen display device of a conventional oscilloscope.

[Explanation of symbols]

 1 Output Display Screen 2 Operation Panel 3 Input Waveform Data Display Circuit 4 Voltage Value Display Circuit 5 Time Value Display Circuit 6 Output Screen Control Circuit 7 Oscilloscope Control Section 11 CH1 Output Waveform 12 CH2 Output Waveform 13 CH1 Voltage Display 14 CH2 Voltage Display 15 CH1 Time display 16 CH2 Time display 21 CH1 vertical sensitivity adjustment knob 22 CH1 vertical position adjustment knob 23 CH1 sweep time adjustment knob 24 horizontal position adjustment knob 25 CH2 vertical sensitivity adjustment knob 26 CH2 vertical position adjustment knob 27 CH2 sweep time adjustment knob

Claims (1)

[Claims] 1. An input waveform data display circuit which outputs to display input waveform data, a voltage value display circuit which outputs to display a voltage value, and a time value display circuit which outputs to display a time value. And an output screen control circuit that synthesizes the output of the input waveform data display circuit, voltage value display circuit, and time value display circuit and displays it on the output display screen, and the vertical sensitivity adjustment knob and vertical position adjustment knob and sweep on the operation panel. The output of the voltage value display circuit and time value display circuit is changed in conjunction with the operation of the time adjustment knob and horizontal position adjustment knob, and the numerical values and display positions of the voltage value and time value displayed on the output display screen are changed. An output screen display device of an oscilloscope, which includes a control unit for controlling so as to control.