CN112996205B

CN112996205B - Multipath light-adjustable signal generator

Info

Publication number: CN112996205B
Application number: CN201911217275.XA
Authority: CN
Inventors: 毛晓惠; 李飞镝; 李青; 邓茂才
Original assignee: Southwestern Institute of Physics
Current assignee: Southwestern Institute of Physics
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2023-04-14
Anticipated expiration: 2039-12-02
Also published as: CN112996205A

Abstract

The invention belongs to the field of high-voltage power supply control systems, and particularly relates to a multipath dimmable signal generator which comprises a signal trigger device, a multipath pulse forming circuit, a plurality of signal pulse width adjusting knobs, a data processor and a nixie tube, wherein the multipath pulse forming circuit receives optical signals transmitted by the signal trigger device, receives pulse width signals transmitted by the signal pulse width adjusting knobs, then generates multipath pulses, transmits the multipath pulses to the data processor, and drives the nixie tube to display numerical values. The pulse width of the multiple paths of optical signals can be set according to the test condition, manual triggering can be adopted, the multiple paths of analog optical signals can be sent out according to an external time sequence, and the device has the advantages of strong expansibility, flexible control, simple and clear structure, high safety performance and low cost.

Description

Multipath light-adjustable signal generator

Technical Field

The invention belongs to the field of high-voltage power supply control systems, and particularly relates to a multi-channel adjustable light signal generator.

Background

At present, large-scale nuclear fusion devices at home and abroad adopt various auxiliary heating modes to carry out plasma heating and current driving experiments, the voltage of a required high-voltage power supply is gradually increased, and a high-power pulse high-voltage power supply can be formed by overlapping a plurality of switching power supply modules. The control system of the high-voltage power supply is isolated from the high-voltage power supply body by adopting optical fibers, and all control signals are transmitted by adopting the optical fibers. In the debugging process of the high-voltage power supply, various optical signals are needed to simulate control signals of a real test. Most of the signal generators on the market are pulse transmitting devices of electric signals.

Disclosure of Invention

The invention aims to provide a multipath adjustable optical signal generator which provides multipath optical control signals required by high-voltage power supply debugging so as to simulate the debugging condition under a real test environment.

The technical scheme of the invention is as follows:

the utility model provides a multichannel adjustable light signal generator, includes signal trigger device, multichannel pulse formation circuit, a plurality of signal pulse width adjust knob, data processor and charactron, multichannel pulse formation circuit receive the light signal of signal trigger device conveying, multichannel pulse formation circuit receives the pulse width signal that a plurality of signal pulse width adjust knob sent simultaneously, later produces multichannel pulse, sends to data processor to drive charactron shows numerical value.

The signal trigger device comprises a manual trigger, an optical signal receiver and a dial switch, wherein the output ends of the manual trigger and the optical signal receiver are connected with the dial switch, the selection of two paths of output optical signals is realized through the switch, and the selected signals are transmitted to the multi-path pulse forming circuit.

The multi-channel pulse forming circuit sends the multi-channel pulses to the multi-channel optical signal transmitting unit, and the multi-channel pulses are converted into optical signals through electro-optic conversion and then output.

The pulse width adjusting buttons set the width of the pulses, and the pulse width is adjusted through the adjustable resistor.

The data processor is a DSP.

And the data processor reads the voltage value at each pulse width adjusting button and converts the voltage value into the pulse width.

The multi-path pulse forming circuit is a monostable circuit, and generates a single pulse after receiving an external trigger signal.

The invention has the following remarkable effects: the pulse width of the multiple optical signals can be set according to the test condition, manual triggering can be adopted, and the multiple analog optical signals can be sent out according to an external time sequence. The invention has the characteristics of strong expansibility, flexible control, simple and clear structure, high safety performance, low cost and the like.

Drawings

FIG. 1 is a schematic diagram of a multi-channel tunable optical signal generator;

in the figure: 1. a manual trigger; 2. an optical signal receiver; 3. a dial switch; 4. a multi-channel pulse forming circuit; 5. a multipath optical signal transmitting unit; 6. a data processor; 7. a multi-channel pulse width adjusting knob; 8. two nixie tubes; 9. two-bit nixie tubes; 10. three-position nixie tube

Detailed Description

The invention is further illustrated by the accompanying drawings and the detailed description.

As shown in fig. 1, the multipath adjustable optical signal generator includes a manual trigger 1, an optical signal receiver 2, a dial switch 3, a multipath pulse forming circuit 4, a plurality of signal pulse width adjusting knobs 7, a data processor 6, and a plurality of

nixie tubes

8, 9, and 10. A multi-path optical signal transmitter 5 is also included.

The output ends of the manual trigger 1 and the optical signal receiver 2 are connected with the dial switch 3, two paths of output optical signals are selected through the switch, the selected signals are transmitted to the multi-path pulse forming circuit 4, meanwhile, the multi-path pulse forming circuit 4 receives pulse width signals sent by the signal pulse width adjusting knobs 7, multi-path pulses are generated and sent to the data processor 6, corresponding nixie tubes are driven, numerical value display of the nixie tubes is carried out, meanwhile, the multi-path pulse forming circuit 4 sends the multi-path pulses to the multi-path optical signal transmitting unit 5, and finally, the multi-path pulses are sent to an external system after being converted into optical signals through electro-optic.

The trigger mode has two kinds, one is a manual trigger 1, the specific realization mode is that a touch switch is adopted, when the touch switch is pressed down, the signal is grounded, and the signal is sent to a multi-path pulse forming circuit 4 after passing through a dial switch 3; the other triggering mode is that the optical signal receiver 2 receives a time reference signal of an external system, the external signal is also an optical signal, and after passing through a photoelectric conversion circuit on the transmitter, the signal is sent to the multi-path pulse forming circuit after passing through the dial switch 3.

The two modes are selected by the dial switch 3 to perform selection conversion.

The function of the pulse width adjusting buttons 7 is to set the width of the pulses, and the specific implementation mode is to adjust the adjustable resistors so as to achieve the purpose of adjusting the pulse width. The resistor to which each adjustment button is connected is finally connected to a multiplex pulse forming circuit 4.

The data processor 6 is a DSP minimum plate with strong function, which can automatically read the voltage value at each pulse width adjusting button, calculate in the program, convert into the width of each path of pulse, and then drive the corresponding digital display tube. Thus, in the digital display tube, the width of the corresponding pulse can be displayed.

The specific implementation of the multi-path pulse forming circuit 4 is a monostable circuit, and when the pulse forming circuit receives an external trigger signal, a single pulse can be generated.

The multi-path optical signal transmitting unit 5 outputs the optical fiber signal to the corresponding debugging device after the multi-path pulse signal generated by the multi-path pulse forming circuit 4 is subjected to electro-optical conversion.

Claims

1. The utility model provides a multichannel adjustable optical signal generator, includes signal trigger device, multichannel pulse forming circuit, a plurality of signal pulse width adjust knob, data processor and digital tube, its characterized in that: the multi-channel pulse forming circuit receives the optical signals transmitted by the signal trigger device, receives pulse width signals sent by the signal pulse width adjusting knobs, then generates multi-channel pulses, sends the multi-channel pulses to the data processor, and drives the nixie tube to display numerical values;

the signal trigger device comprises a manual trigger, an optical signal receiver and a dial switch, wherein the output ends of the manual trigger and the optical signal receiver are connected with the dial switch, the selection of two paths of output optical signals is realized through the switch, and the selected signals are transmitted to a multi-path pulse forming circuit;

the multi-channel adjustable optical signal generator comprises a multi-channel optical signal transmitter, and the multi-channel pulse forming circuit transmits multi-channel pulses to the multi-channel optical signal transmitting unit, and the multi-channel pulses are converted into optical signals through electro-optic conversion and then output;

the output ends of the manual trigger and the optical signal receiver are connected with the dial switch, two paths of output optical signals are selected through the switch, the selected signals are transmitted to the multi-path pulse forming circuit, meanwhile, the multi-path pulse forming circuit receives pulse width signals sent by the plurality of signal pulse width adjusting knobs, multi-path pulses are generated and sent to the data processor, corresponding nixie tubes are driven to display numerical values of the nixie tubes, meanwhile, the multi-path pulse forming circuit sends the multi-path pulses to the multi-path optical signal transmitting unit, and finally, the multi-path pulses are sent to an external system after being electro-optically converted into optical signals;

the trigger mode has two types, one is a manual trigger, the specific realization mode is that a light touch switch is adopted, when the light touch switch is pressed down, the signal is grounded, and the signal is sent to a multi-path pulse forming circuit after passing through the dial switch; the other triggering mode is that an optical signal receiver receives a time reference signal of an external system, the external signal is also an optical signal, and after passing through a photoelectric conversion circuit on a transmitter, the signal is sent to a multi-path pulse forming circuit after passing through a dial switch.

2. The multiplexed tunable optical signal generator of claim 1, wherein: the pulse width adjusting buttons set the width of the pulses, and the pulse width is adjusted through the adjustable resistor.

3. The multiplexed tunable optical signal generator of claim 1, wherein: the data processor is a DSP.

4. A multipath dimmable signal generator as claimed in claim 3, wherein: and the data processor reads the voltage value at each pulse width adjusting button and converts the voltage value into the pulse width.

5. The multiplexed tunable optical signal generator of claim 1, wherein: the multi-path pulse forming circuit is a monostable circuit, and generates a single pulse after receiving an external trigger signal.