CN211740560U - Power-on self-checking system of spectrophotometer - Google Patents
Power-on self-checking system of spectrophotometer Download PDFInfo
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- CN211740560U CN211740560U CN202020507183.7U CN202020507183U CN211740560U CN 211740560 U CN211740560 U CN 211740560U CN 202020507183 U CN202020507183 U CN 202020507183U CN 211740560 U CN211740560 U CN 211740560U
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Abstract
The utility model discloses a spectrophotometer's power on self-checking system, including installing the host system in spectrophotometer, the light source module, light beam receiving module, refer to light intensity storage module and alarm module, the light source module transmission beam, the light beam that light beam receiving module received the light source and sent, and the light intensity that will receive the light beam sends to host system, host system sends the start signal to light source module, and receive the light intensity signal that light beam receiving module received, refer to light intensity storage module and provide the reference light intensity data of storage in to host system, host system contrasts received light intensity data and the reference light intensity data that reference light intensity storage module provided, reach the empty signal in luminosity room, alarm module receives the alarm information that host system sent. The utility model discloses can carry out the self-checking when the spectrophotometer start, judge whether the luminosity room is empty, prevent the false retrieval.
Description
Technical Field
The utility model relates to a spectrophotometer, in particular to spectrophotometer's power on self-checking system.
Background
Spectrophotometers are one of the most commonly used optical instruments, and can be classified according to the number of beams passing through the cuvette location: single beam spectrophotometer, double beam spectrophotometer; the wavelength range of monochromatic light can be divided into: a visible spectrophotometer, an ultraviolet-visible spectrophotometer, and an ultraviolet-visible near-infrared spectrophotometer.
The spectrophotometer needs self-checking when starting up, whether key parts of a detection part can normally work or not, the instrument can work in the best state, and meanwhile, the starting up self-checking is also used for taking a self-checking result as a reference of the starting up measurement, so that a photometric chamber is required to be emptied during the self-checking, no light blocking object can be arranged, and the measurement precision during the self-checking is ensured. However, the photometric chamber is usually emptied manually, and when the photometric chamber is emptied, an operator inevitably makes mistakes and forgets to empty the photometric chamber, which leads to wrong self-checking results and affects the measurement accuracy.
SUMMERY OF THE UTILITY MODEL
In order to solve the deficiencies in the prior art, the utility model aims to provide a spectrophotometer's power on self-checking system, this system can carry out the self-checking when the spectrophotometer is started, judges whether luminosity room is empty, prevents the false retrieval.
The utility model provides a technical scheme that its technical problem adopted does: a power-on self-checking system of a spectrophotometer comprises a main control module, a light source module, a light beam receiving module, a reference light intensity storage module and an alarm module, wherein the main control module is arranged in the spectrophotometer and is respectively connected with the light source module, the light beam receiving module, the reference light intensity storage module and the alarm module through I/O interfaces; wherein:
the light source module is arranged on one side of a luminosity chamber of the spectrophotometer, and the light source emits light beams which pass through the luminosity chamber;
the light beam receiving module is arranged on the other side of the photometric chamber of the spectrophotometer and used for receiving the light beam emitted by the light source and sending the light intensity of the received light beam to the main control module;
the main control module is arranged in an MCU main control board of the spectrophotometer and sends a starting signal to the light source module and receives a light intensity signal received by the light beam receiving module;
the reference light intensity storage module is arranged in an MCU (microprogrammed control unit) main control board of the spectrophotometer and provides stored reference light intensity data for the main control module, and the main control module compares the received light intensity data with the reference light intensity data provided by the reference light intensity storage module to obtain an emptying signal of the luminosity chamber;
the alarm module is arranged in an MCU (microprogrammed control unit) main control board of the spectrophotometer and receives alarm information sent by the main control module, and the alarm module is connected with a display device through an RJ45 interface.
Optionally, the spectrophotometer is further connected with an upper computer, and the display device is a display screen of the upper computer.
Optionally, the light source of the light source module is a single light source.
Optionally, the light source of the light source module is a dual light source.
Adopt above-mentioned technical scheme, the utility model discloses whether enable spectrophotometer automated inspection luminosity room when the self-checking is empty, prevent the maloperation, eliminate because of the luminosity room does not empty and carry out the adverse effect that the self-checking brought.
Drawings
Fig. 1 is a system block diagram of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, the utility model discloses a spectrophotometer's power on self-checking system, including installing host system 1, light source module 2, light beam receiving module 3, reference light intensity storage module 4 and the alarm module 5 in spectrophotometer. The main control module 1 is connected with the light source module 2, the light beam receiving module 3, the reference light intensity storage module 4 and the alarm module 5 through I/O interfaces respectively. The light source module 2 is arranged on one side of a luminosity chamber of the spectrophotometer, when the spectrophotometer is started and self-checked, the light source module 2 emits light beams, and the light beams emitted by the light source module 2 penetrate through the luminosity chamber and are received by the light beam receiving module 3. In this process, if the photometric cell is not emptied, the light intensity of the light beam received by the light beam receiving module 3 is reduced due to absorption by foreign objects, and therefore, if the self-inspection result is taken as the measurement reference, the measurement result is inaccurate. Therefore, the utility model discloses in, still be equipped with reference light intensity storage module 4 and alarm module 5 to monitor the self-checking result.
The main control module 1 is integrated in the MCU main control board of the spectrophotometer, for example, in the visible spectrophotometer, STM32F103C8T6 can be used as the main control board, and the main control module 1, the reference light intensity storage module 4 and the alarm module 5 are integrated in the main control board. When the spectrophotometer is started for self-checking, the main control module 1 sends a starting signal to the light source module 2, the light source module 2 is started and emits light beams, and the light beam receiving module 3 receives light intensity signals after passing through the luminosity chamber. Then, reference light intensity data of storage is provided to host system 1 with reference to light intensity storage module 4, and host system 1 contrasts received light intensity data and reference light intensity data that reference light intensity storage module 4 provided to whether it is empty to obtain the luminosity room, if not empty, then host system 1 sends alarm signal, and after alarm module 5 received the alarm signal that host system 1 sent, uploaded alarm information to display device 6 in the utility model discloses in, alarm module 5 was connected through the RJ45 interface with display device 6.
The utility model discloses in, spectrophotometer still is connected with host computer 7, and foretell display device 6 then is host computer 7's display screen, and when the luminosity room is not clear up, alarm information shows on host computer 7's display screen.
The following examples are the single-light source uv-vis spectrophotometer and the dual-light source uv-vis spectrophotometer of anhui instrument science and technology limited company, and are respectively specific to the present invention.
Example 1
In this embodiment 1, the light source of the light source module 2 is a single light source.
The spectrophotometer was calibrated prior to the initial self-test. The calibration conditions for the spectrophotometer were:
1. light source wavelength (nm): 560;
2. spectral bandwidth (nm): 1.0;
3. the measurement mode is as follows: energy;
4. photomultiplier negative high voltage (V): 310;
during calibration, the photometric chamber is firstly emptied, then the spectrophotometer is started, and the main control module 1 sends the light intensity I1Recorded in the reference light intensity storage block 4.
When the power-on self-test is carried out, the main control module 1 obtains the light intensity I during the self-test1 fromAt the same time, | I1 from-I1|/I1With a set constant K1By comparison, if I1 from-I1|/I1＞K1It indicates that the photometric cell is not empty, otherwise it indicates that the photometric cell is empty.
The main control module 1 will be in the empty state I1 fromAs the reference value of the next power-on self-test, and the I1 fromStored in the reference light intensity storage block 4.
It should be noted that the conditions of the spectrophotometer at power-on self-test are consistent with the calibration conditions.
Example 2
Example 2 differs from example 1 in that example 2 employs a light source spectrophotometer, and the remaining conditions are the same as example 1.
During calibration, the main control module 1 respectively adjusts the light intensity I of the two light sources2、I3Recorded in the reference light intensity storage block 4.
When the power-on self-test is carried out, the main control module 1 obtains the light intensity I during the self-test2 from、I3 fromAt the same time, | I2 from-I2|/I2With a set constant K2For comparison, | I3 from-I3|/I3In contrast to the set constant K3, if I2 from-I2|/I2＞K2Or | I3 from-I3|/I3＞K3It indicates that the photometric cell is not empty, otherwise it indicates that the photometric cell is empty.
The main control module 1 will be in the empty state I2 from、I3 fromAs the reference value of the next power-on self-test, and the I2 from、I3 fromStored in the reference light intensity storage block 4.
In examples 1 and 2, K1、K2、K3Are all normal numbers that are slightly greater than 0, and if too large, may misinterpret that the photometric cell is empty as the photometric cell is empty, and if too small, may misinterpret that the photometric cell is empty as the photometric cell is not empty. Thus, K1、K2、K3The numerical range of (A) can be obtained within 0.02-0.05.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Besides the technical features described in the specification, other technical features are known to those skilled in the art, and further description of the other technical features is omitted here in order to highlight the innovative features of the present invention.
Claims (4)
1. A power-on self-checking system of a spectrophotometer is characterized by comprising a main control module, a light source module, a light beam receiving module, a reference light intensity storage module and an alarm module, wherein the main control module, the light source module, the light beam receiving module, the reference light intensity storage module and the alarm module are arranged in the spectrophotometer and are respectively connected with the light source module, the light beam receiving module, the reference light intensity storage module and the alarm module through I/O interfaces; wherein:
the light source module is arranged on one side of a luminosity chamber of the spectrophotometer, and the light source emits light beams which pass through the luminosity chamber;
the light beam receiving module is arranged on the other side of the photometric chamber of the spectrophotometer and used for receiving the light beam emitted by the light source and sending the light intensity of the received light beam to the main control module;
the main control module is arranged in an MCU main control board of the spectrophotometer and sends a starting signal to the light source module and receives a light intensity signal received by the light beam receiving module;
the reference light intensity storage module is arranged in an MCU (microprogrammed control unit) main control board of the spectrophotometer and provides stored reference light intensity data for the main control module, and the main control module compares the received light intensity data with the reference light intensity data provided by the reference light intensity storage module to obtain an emptying signal of the luminosity chamber;
the alarm module is arranged in an MCU (microprogrammed control unit) main control board of the spectrophotometer and receives alarm information sent by the main control module, and the alarm module is connected with a display device through an RJ45 interface.
2. The power-on self-test system of the spectrophotometer according to claim 1, wherein the spectrophotometer is further connected with an upper computer, and the display device is a display screen of the upper computer.
3. The power-on self-test system of a spectrophotometer according to claim 2 wherein the light source of said light source module is a single light source.
4. The power-on self-test system of the spectrophotometer according to claim 2, wherein the light source of the light source module is a dual light source.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020507183.7U CN211740560U (en) | 2020-04-07 | 2020-04-07 | Power-on self-checking system of spectrophotometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112783031A (en) * | 2020-12-30 | 2021-05-11 | 中国科学院长春光学精密机械与物理研究所 | Soft instruction starting control and level signal isolation circuit system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112783031A (en) * | 2020-12-30 | 2021-05-11 | 中国科学院长春光学精密机械与物理研究所 | Soft instruction starting control and level signal isolation circuit system |
| CN112783031B (en) * | 2020-12-30 | 2021-12-17 | 中国科学院长春光学精密机械与物理研究所 | Soft instruction starting control and level signal isolation circuit system |
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