CN86207551U

CN86207551U - Light intensity controlling device for carbon-dioxide laser

Info

Publication number: CN86207551U
Application number: CN 86207551
Authority: CN
Inventors: 曹国斌
Original assignee: HUNAN INST OF TECHNICAL PHYSICS
Current assignee: HUNAN INST OF TECHNICAL PHYSICS
Priority date: 1986-10-17
Filing date: 1986-10-17
Publication date: 1987-07-29

Abstract

The utility model relates to a light intensity controlling device for carbon-dioxide laser, comprising a minor switch which is arranged on a light-guiding knuckle arm, a laser intensity regulation handle (a potentiometer) and a laser power supply transformer primary thyristor voltage-regulating power. The utility model has the advantages of good synchronism, flexible operation, big working area, smaller volume and less weight and is a laser tool for artists or doctors; the circuits of the utility model can also be used for the load control for other electric appliances.

Description

Light intensity controlling device for carbon-dioxide laser

The utility model relates to a kind of light intensity control device of carbon dioxide gas laser.

Existing carbon dioxide laser mostly is equipped with voltage regulating transformer as the light intensity regulating handle at the contactor that the Laser Power Devices input is equipped with foot switch control as on-off switch with on Laser Power Devices.Like this, when carrying out processes with manual manipulation laser articulate arm, also handy foot control system laser break-make and the professional is set in addition carries out the operation of light intensity regulating handle at laser power supply one end often can not reach handy synchronous effect, and the equipment heaviness, volume is big.Existing solid state laser computer controller can reach effect preferably in precision with synchronously, but can only can not become the instrument of handling very skillfully in artist or the doctor's hand as the equipment of producing the small size workpiece by batch.

Purpose of the present invention is exactly the control device of a kind of energy of design Synchronization Control laser intensity, makes the artist carrying out the large tracts of land Carving Machining or handling very skillfully as doctor's scalpel, and is handy.

The utility model designs a kind of carbon dioxide laser light intensity control device (seeing accompanying drawing 1) exactly, is made up of laser on-off switch (1), laser intensity release handle (2) and Laser Power Devices.Laser on-off switch (1) is one to be installed in the switchette on the articulate arm; Laser intensity release handle (2) is for being installed in the potentiometer on the operating desk; The circuit that Laser Power Devices adopt the thyristor of Laser Power Devices primary major loop serial connection trigger impulse control to carry out pressure regulation.The thyristor control circuit of Laser Power Devices is made up of comparator (3), saw-toothed wave generator (4), trigger generator (5), accessory power supply (8).Laser on-off switch (1) is serially connected in the synchro source current supply circuit of accessory power supply (8) to saw-toothed wave generator (4), laser intensity release handle (2) is connected in the input circuit of comparator (3), comparator (3), saw-toothed wave generator (4), trigger generator (5) are connected in series successively, supply with working power by accessory power supply (8), the output of trigger generator (5) directly connects the control utmost point of thyristor, and thyristor is serially connected in the Laser Power Devices primary major loop.

Fig. 1 is the design's a schematic diagram.

Fig. 2 is the design's a circuit diagram.

Can find out that from accompanying drawing 2 the Laser Power Devices primary is connected to AC network after being connected in series by IGCT. Change the angle of flow of IGCT, just changed the primary voltage of Laser Power Devices transformers, the secondary high pressure of power transformer also changes thereupon. The change of high pressure has also just changed laser intensity. The angle of flow of IGCT is subjected to the control of trigger impulse. The control circuit of IGCT is composed in series successively by comparator, saw-toothed wave generator, trigger generator, and provides working power by accessory power supply for these circuit. The sawtooth waveforms that saw-toothed wave generator is produced by the modulation of comparator afterwards forms trigger impulse through trigger generator, be connected to the control utmost point of IGCT, because laser on-off switch (1) is serially connected in the synchro source current supply circuit of accessory power supply to saw-toothed wave generator, when laser on-off switch (1) when opening, cut off the synchro source of saw-toothed wave generator, saw-toothed wave generator does not have sawtooth waveforms output, trigger generator does not have input and can not form trigger impulse, thyristor control utmost point triggerless pulse and closing, the Laser Power Devices primary is because of the no-voltage of closing of IGCT, secondary high pressure and laser also just can't produce, reached the purpose of control laser intensity break-make, be connected in the input circuit of comparator owing to laser intensity release handle (2) (being potentiometer) again, regulator potentiometer (2), also just changed the input current potential of comparator, the output of comparator also changes thereupon, the output modulation saw-toothed wave generator of comparator, thereby changed the output of saw-toothed wave generator, and then changed the trigger impulse that trigger generator forms, just changed the angle of flow of IGCT, the change of the IGCT angle of flow has determined the degree that IGCT is opened. And IGCT is to be connected in the major loop of Laser Power Devices primary. Therefore, line voltage adds to the Laser Power Devices primary behind IGCT voltage also changes thereupon, the laser intensity of secondary high pressure and generation thereof is also regulated and is changed, so regulate the light intensity that laser intensity release handle (2) (being potentiometer) has also just been regulated laser.

Use this laser intensity control device, make the laser instrument synchronous effect good, simplified operation, working (finishing) area is big, and use flexibly, has conveniently reduced the volume and weight of equipment, is the instrument of handling very skillfully in artist or the doctor's hand.

Fig. 1 marking explanation

1 is the laser on-off switch.

2 is the laser intensity release handle.

3 is comparator.

4 is saw-toothed wave generator.

5 is trigger generator.

6 is thyristor circuit.

7 is the Laser Power Devices transformer circuit.

8 is accessory power supply.

9 is AC network.

Claims

1, a kind of carbon dioxide laser light intensity control device is made up of laser on-off switch (1), laser intensity release handle (2) and Laser Power Devices, it is characterized in that laser on-off switch (1) is for being installed in the switchette on the articulate arm; Laser intensity release handle (2) is for being installed in the potentiometer on the operating desk; The circuit that Laser Power Devices adopt the thyristor of Laser Power Devices primary major loop serial connection trigger impulse control to carry out pressure regulation.

2, by the described device of claim 1, it is characterized in that the thyristor control circuit of Laser Power Devices is made up of comparator (3), saw-toothed wave generator (4), trigger generator (5), accessory power supply (8).

3, by claim 1,2 described devices, it is characterized in that laser on-off switch (1) is serially connected in the synchro source current supply circuit of accessory power supply (8) to saw-toothed wave generator (4).

4, by claim 1,2 described devices, it is characterized in that laser intensity release handle (2) is connected in the input circuit of comparator (3).