CN203874222U - Displacement measurement device for injection automatic control system - Google Patents
Displacement measurement device for injection automatic control system Download PDFInfo
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- CN203874222U CN203874222U CN201420115821.5U CN201420115821U CN203874222U CN 203874222 U CN203874222 U CN 203874222U CN 201420115821 U CN201420115821 U CN 201420115821U CN 203874222 U CN203874222 U CN 203874222U
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- photoelectric sensor
- displacement
- grating scale
- control system
- automatic control
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Abstract
The utility model discloses a displacement measurement device for an injection automatic control system, and belongs to the field of medical equipment. The displacement measurement device comprises a grating ruler, a displacement detection unit and photoelectric sensors. The grating ruler is fixed on a movable sleeve of an automatic injector, and the displacement detection unit is connected with the photoelectric sensors through a position detection socket. The displacement measurement device for the injection automatic control system is characterized in that the grating ruler is provided with 39 square holes, each photoelectric sensor is of a U-shaped structure, the grating ruler moves in a U-shaped groove of each photoelectric sensor, the number of the photoelectric sensors is two, the grating ruler moves along with the movable sleeve of the automatic injector, the photoelectric sensors convert the displacement of the grating ruler into an electric pulse, the displacement detection unit receives electric pulse signals of the photoelectric sensors, and the electric pulse signals are encoded into the digital movement amount through the displacement detection unit. The displacement measurement device for the injection automatic control system has the advantages of being high in detection precision, long in service life and the like.
Description
Technical field
This utility model relates to a kind of injection automatic control system displacement measuring device of medical instruments field.
Background technology
In the market for injecting automatic control system displacement measuring device, the main swept resistance that adopts, thereby by moving displacement, change resistance and change current signal identification displacement, and relative position, by disk unthreaded hole, the control of luminous signal is realized to identification displacement in addition, and relative position structure, its swept resistance, move around for a long time easy to wear, the signal stabilization of controlling and damage are difficult to control, cause service life short, or when the precision of wear signal de-stabilising effect injectable drug, finally affect the therapeutic effect to patient, disk unthreaded hole is in position of every rotation, while changing next position, make zero, to the control complexity of software and program reliability, require high, the workload of CUP is large, relative signal easily runs and flies, thereby affect control accuracy, the final therapeutic effect that affects.
Summary of the invention
The purpose of the present utility model is to overcome the deficiencies in the prior art, solution is because swept resistance moves around easy to wear for a long time, the signal stabilization of controlling and damage are difficult to control, cause service life short, and when the precision of wear signal de-stabilising effect injectable drug, finally affect the therapeutic effect to patient, for improving life-span and injection precise control and the precision of apparatus, this utility model adopts grating scale to substitute swept resistance as mobile detecting element.
The present utility model is achieved through the following technical solutions:
A kind of injection automatic control system displacement measuring device, described device comprises grating scale, displacement detecting unit and photoelectric sensor, grating scale is fixed on automatic injector moving sleeve, displacement detecting unit is connected with photoelectric sensor by position probing socket, it is characterized in that: grating scale is provided with 39 square openings, photoelectric sensor is U-shaped structure, grating scale moves in the U-shaped groove of photoelectric sensor, described photoelectric sensor is 2, grating scale moves with automatic injector moving sleeve, photoelectric sensor changes into electric pulse by grating scale displacement, the electric impulse signal of photoelectric sensor is accepted in displacement detecting unit, electric impulse signal becomes digital amount of movement by displacement detecting cell encoding, movement by grating scale in the U-shaped groove of photoelectric sensor, move measuring position indirectly, technique scheme is done to further improvement, and above described grating scale, with two kinds of 39 square holes that size is different, square hole pitch-row constantly changes, and further improves accuracy of detection.
The present utility model compared with prior art has following beneficial effect:
1. accuracy of detection is high;
2. long service life.
Accompanying drawing explanation:
Fig. 1 is injection automatic control system displacement measuring device scheme of installation;
Fig. 2 is injection automatic control system displacement measuring device electrical schematic diagram;
Fig. 3 is injection automatic control system displacement measuring device grating scale schematic diagram.
In figure: moving sleeve 1, grating scale 2, photoelectric sensor 3 and grating hole 4.
The specific embodiment
Below in conjunction with accompanying drawing, content of the present utility model is further described:
Fig. 1 is injection automatic control system displacement measuring device scheme of installation, grating scale 2 is fixed on the moving sleeve 1 of automatic injector, grating scale 2 is with moving sleeve 1 motion of automatic injector, photoelectric sensor 3 fixed installations, grating scale 2 moves in the U-shaped groove of photoelectric sensor 3, one side of photoelectric sensor 3 is light emitting diode, opposite side is photovoltaic sensing element, on grating scale 2, be distributed with grating hole 4, by grating scale 2 mobile displacement that the cutting of the LED source of photoelectric sensor 3 is changed to measure grating scale 2 in the U-shaped groove of photoelectric sensor 3, the electric impulse signal of photoelectric sensor is accepted in displacement detecting unit, electric impulse signal becomes digital amount of movement by displacement detecting cell encoding, by digital amount of movement, injecting the mobile of automatic control system controls.
Claims (2)
1. inject automatic control system displacement measuring device for one kind, described device comprises grating scale, displacement detecting unit and photoelectric sensor, grating scale is fixed on automatic injector moving sleeve, displacement detecting unit is connected with photoelectric sensor by position probing socket, it is characterized in that: grating scale is provided with 39 square openings, photoelectric sensor is U-shaped structure, grating scale moves in the U-shaped groove of photoelectric sensor, described photoelectric sensor is 2, grating scale moves with automatic injector moving sleeve, photoelectric sensor changes into electric pulse by grating scale displacement, the electric impulse signal of photoelectric sensor is accepted in displacement detecting unit, electric impulse signal becomes digital amount of movement by displacement detecting cell encoding.
2. injection automatic control system displacement measuring device according to claim 1, is characterized in that: above described grating scale, with two kinds of 39 square holes that size is different, square hole pitch-row constantly changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420115821.5U CN203874222U (en) | 2014-03-14 | 2014-03-14 | Displacement measurement device for injection automatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420115821.5U CN203874222U (en) | 2014-03-14 | 2014-03-14 | Displacement measurement device for injection automatic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203874222U true CN203874222U (en) | 2014-10-15 |
Family
ID=51674776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420115821.5U Expired - Fee Related CN203874222U (en) | 2014-03-14 | 2014-03-14 | Displacement measurement device for injection automatic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203874222U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108939184A (en) * | 2017-05-19 | 2018-12-07 | 宏碁股份有限公司 | Displacement sensing device and peritoneal dialysis system |
| CN114848964A (en) * | 2022-04-26 | 2022-08-05 | 苏州恒瑞迪生医疗科技有限公司 | Injection pump |
-
2014
- 2014-03-14 CN CN201420115821.5U patent/CN203874222U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108939184A (en) * | 2017-05-19 | 2018-12-07 | 宏碁股份有限公司 | Displacement sensing device and peritoneal dialysis system |
| US10751458B2 (en) | 2017-05-19 | 2020-08-25 | Acer Incorporated | Displacement sensing device and peritoneal dialysis system |
| CN114848964A (en) * | 2022-04-26 | 2022-08-05 | 苏州恒瑞迪生医疗科技有限公司 | Injection pump |
| CN114848964B (en) * | 2022-04-26 | 2024-05-31 | 苏州恒瑞迪生医疗科技有限公司 | Injection pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20170314 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |