CN206442558U - The regulatable LED current gain control of dry type hematuria biochemics analyzer - Google Patents
The regulatable LED current gain control of dry type hematuria biochemics analyzer Download PDFInfo
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- CN206442558U CN206442558U CN201720080487.8U CN201720080487U CN206442558U CN 206442558 U CN206442558 U CN 206442558U CN 201720080487 U CN201720080487 U CN 201720080487U CN 206442558 U CN206442558 U CN 206442558U
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- Prior art keywords
- current gain
- gain control
- led
- modules
- central processing
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Abstract
The utility model discloses the regulatable LED current gain control of dry type hematuria biochemics analyzer, comprising central processing unit, SC620 modules and current gain control module, the central processing unit passes through I2C interface is connected with SC620 modules, and SC620 modules are connected with current gain control module, and current gain control module is connected with LED control, and LED is relative with blue alignment bar, and blue alignment bar is connected to central processing unit by photoelectric sensor.Central processing unit passes through I2C interface mode is precisely controlled the electric current output of SC620 modules and current gain control module, while 8 paths of LEDs lamps can be controlled individually；By the regulation of current gain, output current, according to the requirement chemically reacted in biochemistry detection, can preferably control brightness and the stability of LED from 31.25 μ A to 25mA.
Description
Technical field
The utility model is related to a kind of regulatable LED current gain for dry type hematuria biochemics analyzer and controls dress
Put.
Background technology
For hematuria biochemics analyzer, required according to chemical reaction, it is necessary to LED hairs are precisely controlled between 15 DEG C -35 DEG C
The luminous intensity of light pipe, could obtain accurate biochemistry detection result.
At present, prior art controls circuit drives LED luminous intensities, its shortcoming using DA converting analogue signals constant-current LED
It is that luminous intensity is easily influenceed by disturbing factors such as electromagnetism around, causes luminous intensity stability not ideal enough, influences biochemistry detection
As a result accuracy, prior art LED control circuit Technology design is not ideal enough.
Utility model content
The purpose of this utility model is to overcome the shortcomings of that prior art is present to be used for the analysis of dry type hematuria biochemics there is provided one kind
The regulatable LED current gain control of instrument.
The purpose of this utility model is achieved through the following technical solutions：
The regulatable LED current gain control of dry type hematuria biochemics analyzer, feature is：Comprising central processing unit,
SC620 modules and current gain control module, the central processing unit pass through I2C interface is connected with SC620 modules, SC620
Module is connected with current gain control module, and current gain control module is connected with LED control, LED and blue alignment bar
Relatively, blue alignment bar is connected to central processing unit by photoelectric sensor.
Further, the above-mentioned regulatable LED current gain control of dry type hematuria biochemics analyzer, wherein, institute
State the central processing unit that central processing unit is model MSM8916.
Further, the above-mentioned regulatable LED current gain control of dry type hematuria biochemics analyzer, wherein,
The SC620 modules are SC620 chips.
The utility model has significant advantage and beneficial effect compared with prior art, embodies in the following areas：
1. central processing unit passes through I2C interface mode is precisely controlled the electricity of SC620 modules and current gain control module
Stream output, while 8 paths of LEDs lamps can be controlled individually；By the regulation of current gain, output current can from 31.25 μ A to 25mA, according to
According to the requirement chemically reacted in biochemistry detection, brightness and the stability of LED are preferably controlled；
2. the determination of two grades of luminous intensities of height, stable optical system are carried out to luminous tube luminous intensity by blue alignment bar
System brightness uniformity；The current gain control module controlled by the gain of LED glow currents, improves LED luminous intensities in instrument
Stability, reach precisely carry out biochemistry detection purpose；
3. have compared with high anti-jamming capacity, improve the accuracy of detection of product, it is ensured that detector carries out normal biochemical inspection
Survey the requirement of working condition, it is ensured that correct testing result.
Brief description of the drawings
Fig. 1：Structural representation of the present utility model.
The implication of each reference see the table below in figure：
Embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, accompanying drawing is now compareed detailed
Illustrate specific embodiment.
As shown in figure 1, the regulatable LED current gain control of dry type hematuria biochemics analyzer, includes center processing
Device 101, SC620 modules 103 and current gain control module 104, central processing unit 101 pass through I2C interface and SC620 modules
103 are connected, and SC620 modules 103 are connected with current gain control module 104, and current gain control module 104 is controlled with LED 105
System connection, LED 105 is relative with blue alignment bar 106, and blue alignment bar 106 is connected to central processing by photoelectric sensor 107
Device 101.
Wherein, central processing unit 101 is model MSM8916 central processing unit.SC620 modules 103 are models
SC620 chips.
During concrete application, central processing unit 101 passes through I2C interface mode is precisely controlled SC620 modules 103 and electric current increases
The electric current output of beneficial control module 104, while 8 paths of LEDs lamps can be controlled individually.By the regulation of current gain, output current can
From 31.25 μ A to 25mA, according to the requirement chemically reacted in biochemistry detection, brightness and the stability of LED are preferably controlled.
The determination of two grades of luminous intensities of height, stable optical are carried out to luminous tube luminous intensity by blue alignment bar 106
System brightness uniformity.
The current gain control module 104 controlled by the gain of LED glow currents, improves LED luminous intensities in instrument
Stability, reaches the purpose for precisely carrying out biochemistry detection.
LED current gain control circuit, as calibration background color, reaches the mesh of LED luminous intensity uniformity using blue light
, thus caused in lowering apparatus production process batch between error.
More preferably regulated and controled for optical system in equipment, make equipment can with more stable control LED luminous intensity, from
And ensure that equipment carries out the requirement of normal biochemistry detection working condition, draws correct testing result, by experimental verification, effect
Fruit is very good.
It is that modern medical service service is classified must not in diagnosis and treatment medical service provider system to carry out biochemistry detection in different medical unit
The link that can lack.Because biochemistry detection controls circuit to require very high to disturbing factors such as the electromagnetism in ambient environmental conditions, so
Using this technique improves antijamming capability, the accuracy of detection of product is improved, reach the demand for more preferably carrying out medical services.
It should be noted that：Preferred embodiment of the present utility model is the foregoing is only, this practicality is not limited to
New interest field；Description more than simultaneously, should can understand and implement for the special personage of correlative technology field, therefore its
It should be included in claim without departing from the equivalent change or modification that are completed under the spirit disclosed in the utility model
In.
Claims (3)
1. the regulatable LED current gain control of dry type hematuria biochemics analyzer, it is characterised in that：Include center processing
Device, SC620 modules and current gain control module, the central processing unit pass through I2C interface is connected with SC620 modules,
SC620 modules are connected with current gain control module, and current gain control module is connected with LED control, LED and blue school
Floating screed is relative, and blue alignment bar is connected to central processing unit by photoelectric sensor.
2. the regulatable LED current gain control of dry type hematuria biochemics analyzer according to claim 1, its feature
It is：The central processing unit is model MSM8916 central processing unit.
3. the regulatable LED current gain control of dry type hematuria biochemics analyzer according to claim 1, its feature
It is：The SC620 modules are SC620 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720080487.8U CN206442558U (en) | 2017-01-22 | 2017-01-22 | The regulatable LED current gain control of dry type hematuria biochemics analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720080487.8U CN206442558U (en) | 2017-01-22 | 2017-01-22 | The regulatable LED current gain control of dry type hematuria biochemics analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206442558U true CN206442558U (en) | 2017-08-25 |
Family
ID=59635758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720080487.8U Expired - Fee Related CN206442558U (en) | 2017-01-22 | 2017-01-22 | The regulatable LED current gain control of dry type hematuria biochemics analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206442558U (en) |
-
2017
- 2017-01-22 CN CN201720080487.8U patent/CN206442558U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170825 Termination date: 20220122 |