CN202599576U - Light sensation pressure sensor - Google Patents
Light sensation pressure sensor Download PDFInfo
- Publication number
- CN202599576U CN202599576U CN 201220254005 CN201220254005U CN202599576U CN 202599576 U CN202599576 U CN 202599576U CN 201220254005 CN201220254005 CN 201220254005 CN 201220254005 U CN201220254005 U CN 201220254005U CN 202599576 U CN202599576 U CN 202599576U
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- circuit
- infrared
- shell
- color chips
- light sensation
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Abstract
The utility model discloses a light sensation pressure sensor. A circuit structure of the sensor comprises a power supply stabilizing circuit, an infrared geminate transistor collection circuit, an operation amplification adjusting circuit, a signal following output circuit and a current mutation suppression circuit. The power supply stabilizing circuit is respectively connected with the current mutation suppression circuit and the infrared geminate transistor collection circuit. Recycling signals acquired by the infrared geminate transistor collection circuit is processed by the operation amplification adjusting circuit and is output in the pressure analog signal mode by the signal following output circuit. The light sensation pressure sensor has strong anti-jamming capability, is capable of achieving zero interference and accurate in pressure detection, adopts voltage to drive and is suitable for various pressure detection fields.
Description
Technical field
The utility model relates to a kind of pressure sensor device, particularly the light sensation pressure transducer.
Background technology
Existing pressure transducer mostly is to adopt electromagnetic induction principle to realize pressure detection; In the use of sensor; Because the electromagnetic interference (EMI) of the machine in regular meeting receives electromagnetic equipment on every side or uses; So just cause the electromagnetic signal of sensor malfunctioning, produce the inaccurate problem of pressure detection.
Summary of the invention
In order to overcome the deficiency of prior art, the purpose of the utility model is to provide a kind of light sensation pressure transducer with strong anti-interference ability.
The utility model solves the technical scheme that its technical matters adopted:
The light sensation pressure transducer; Its circuit structure comprises that power supply stabilizing circuit, infrared mutual-tube Acquisition Circuit, computing amplification regulating circuit, signal are followed output circuit and current break suppresses circuit; The power supply stabilizing circuit suppresses circuit with current break respectively and is connected with the infrared mutual-tube Acquisition Circuit, and the recovery signal that said infrared mutual-tube Acquisition Circuit obtains is followed output circuit by signal and exported with the pressure simulation aspect after the computing amplification regulating circuit is handled.
The light sensation pressure transducer; Its product structure comprises light tight rigid plastic shell, is located at the setting nut of cover top portion, the spring base that is connected with setting nut; Be with spring on the spring base, a decay color chips is fixed on the spring base and can be slided up and down by the spring traction, and infrared transmitter is fixedly arranged in the shell facing to the decay color chips; The other end and infrared transmitter at color chips relatively are provided with an infrared light receiving tube; Said infrared light receiving tube is connected with said infrared mutual-tube Acquisition Circuit, is connected with the bottom seals of shell through flexible partition around the spring base, and the bottom of shell is provided with the pipeline with exterior.
Technique scheme also can have following improvement project: said shell is provided with the color chips groove that supplies color chips to slide up and down.
The beneficial effect of the utility model is: have strong anti-interference ability, can realize that zero disturbs, pressure detection is accurate, and adopts low voltage drive, is applicable to various pressure detection field.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the circuit block diagram of the utility model;
Fig. 2 is the structure cross-sectional schematic of the utility model;
Fig. 3 is the circuit theory diagrams of the utility model.
Embodiment
With reference to Fig. 1, Fig. 2, Fig. 3; The utility model light sensation pressure transducer; Be utilize the infrared penetration mode cooperate the decay color chips under the effect of spring structure pressure to external world pressure carry out sectional type and detect; Thereby obtain an AD force value, table look-up through software again and then convert a converting system of force value to.Its circuit structure comprises that power supply stabilizing circuit 1, infrared mutual-tube Acquisition Circuit 2, computing amplification regulating circuit 3, signal are followed output circuit 4 and current break suppresses circuit 5; Power supply stabilizing circuit 1 suppresses circuit 5 with current break respectively and is connected with infrared mutual-tube Acquisition Circuit 2, and the recovery signal that said infrared mutual-tube Acquisition Circuit 2 obtains is followed output circuit 4 by signal and exported with the pressure simulation aspect after computing amplification regulating circuit 3 is handled.
With reference to Fig. 2; The utility model light sensation pressure transducer; Its product structure comprises light tight rigid plastic shell 6, is located at the setting nut 7 at shell 6 tops, the spring base 8 that is connected with setting nut 7; Be with spring 9, decay color chips 21 on the spring base 8 and be fixed on the spring base 8 and can be slided up and down by spring 9 tractions, infrared transmitter 22 is fixedly arranged in the shell 6 facing to decay color chips 21; The other end and infrared transmitter 22 at color chips 21 relatively are provided with an infrared light receiving tube (not shown); Said infrared light receiving tube is connected with said infrared mutual-tube Acquisition Circuit 2, is connected with the bottom seals of shell 6 through flexible partition 81 around the spring base 8, and the bottom of shell 6 is provided with the pipeline 61 with exterior.As improvement, said shell 6 is provided with the color chips groove that supplies color chips 21 to slide up and down.
The electronic circuit principle of work of the utility model light sensation pressure transducer is following: at first, carry out transmission by the invisible infrared light of infrared transmitter 22 emissions facing to decay color chips 21; The infrared light of then, by the infrared light receiving tube (not shown) of the other end of decay color chips 21 transmission being come is gathered; Then, the recovery signal that acquisition of transmission light obtains is transferred to computing amplification regulating circuit 3 and is handled, and amplifies and regulates (as shown in Figure 3) through high-precision high-speed operational amplifier 31; At last, follow the current pressure simulation signal of gathering of output circuit 4 outputs through signal.Circuit design has high frequency to shave except that filtering and voltage instantaneous inhibition circuit, drops to the external interference factor minimum.The utility model adopts the form of infrared light sensation to detect, but its interference source just has only light, if shell seal is light tight, then is equivalent to zero interference source.
The Machine Design characteristics of the utility model product are following: adopt light tight strong hardness plastics as shell body, can isolate the interference of extraneous infrared light well, realize that zero disturbs, make pressure detection more accurate.Color chips 21 is drawn by a spring 9 on the structure, and is designed with the color chips groove on shell 6 structures, supplies color chips when pressure does not wait, to slide along the color chips groove smoothly, to gather different pressure signals.
Thereby the utility model belongs to first utilizes the infrared light mode of penetrating to obtain pressure sensing innovation and creation; Have strong anti-interference ability and low voltage drive; The driven scope can be accomplished normally operation in the WV of 1.8V-5.5V, and accurately obtains voltage AD signal.Be applicable to the field of various pressure detection.
In addition, the utility model is not limited to above-mentioned embodiment, as long as it reaches the technique effect of the utility model with essentially identical means, all should belong to the protection domain of the utility model.
Claims (3)
1. light sensation pressure transducer; It is characterized in that: comprise that power supply stabilizing circuit (1), infrared mutual-tube Acquisition Circuit (2), computing amplification regulating circuit (3), signal are followed output circuit (4) and current break suppresses circuit (5); Power supply stabilizing circuit (1) suppresses circuit (5) with current break respectively and is connected with infrared mutual-tube Acquisition Circuit (2), and the recovery signal that said infrared mutual-tube Acquisition Circuit (2) obtains is followed output circuit (4) by signal and exported with the pressure simulation aspect after computing amplification regulating circuit (3) is handled.
2. light sensation pressure transducer according to claim 1; It is characterized in that: comprise light tight rigid plastic shell (6), be located at the setting nut (7) at shell (6) top, the spring base (8) that is connected with setting nut (7); Be with spring (9) on the spring base (8); One decay color chips (21) is fixed in spring base (8) and goes up also and can be slided up and down by spring (9) traction; Infrared transmitter (22) is fixedly arranged in the shell (6) facing to decay color chips (21), relatively is provided with an infrared light receiving tube at the other end and the infrared transmitter (22) of color chips (21), and said infrared light receiving tube is connected with said infrared mutual-tube Acquisition Circuit (2); Spring base (8) is connected with the bottom seals of shell (6) through flexible partition (81) on every side, and the bottom of shell (6) is provided with the pipeline (61) with exterior.
3. light sensation pressure transducer according to claim 2 is characterized in that: said shell (6) is provided with the color chips groove that supplies color chips (21) to slide up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254005 CN202599576U (en) | 2012-05-29 | 2012-05-29 | Light sensation pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254005 CN202599576U (en) | 2012-05-29 | 2012-05-29 | Light sensation pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202599576U true CN202599576U (en) | 2012-12-12 |
Family
ID=47317105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220254005 Withdrawn - After Issue CN202599576U (en) | 2012-05-29 | 2012-05-29 | Light sensation pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202599576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706493A (en) * | 2012-05-29 | 2012-10-03 | 佛山市顺德区奇林电气有限公司 | Light pressure sensor |
-
2012
- 2012-05-29 CN CN 201220254005 patent/CN202599576U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706493A (en) * | 2012-05-29 | 2012-10-03 | 佛山市顺德区奇林电气有限公司 | Light pressure sensor |
| CN102706493B (en) * | 2012-05-29 | 2014-07-23 | 佛山市顺德区奇林电气有限公司 | Light pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121212 Effective date of abandoning: 20140723 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20121212 Effective date of abandoning: 20140723 |
|
| RGAV | Abandon patent right to avoid regrant |