A rossing foam instrument automatic measuring device based on light intensity detection

Abstract

The utility model relates to experimental apparatus technical field of ross foam appearance, concretely is a kind of ross foam appearance automation measuring device based on light intensity detection, including conventional ross foam appearance and its both end support, 15 groups wide-angle infrared opposite transmission sensor are arranged in 40mm vertical interval along support outer wall, each group of sensor contains infrared emission tube and receiving tube, arc clamp and its bolt hole and sensor recess for fixing sensor;Signal processing unit, connect sensor for converting light intensity signal into foam height data;Display unit, connect signal processing unit for real-time output measurement result;Power module, power supply for each unit.The utility model on the basis of original ross method operating procedure, through the light transmittance variation of real-time monitoring at different heights by multiple infrared opposite transmission sensors, realized the automation measurement without manual intervention, effectively avoided manual reading error and foam wall hanging interference, improved measurement accuracy and repeatability, simplified experimental operation.

Description

Technical Field

[0001] This utility model relates to the field of experimental instruments for Roche foam analyzers, and in particular to an automated measurement device for Roche foam analyzers based on light intensity detection. Background Technology

[0002] The Roche foam analyzer is a device specifically designed to evaluate foam performance. It mainly consists of the foam analyzer body, a support frame, and a super-temperature constant-temperature water bath. Currently, inaccurate evaluations are caused by significant errors in manual readings and interference from foam adhering to the walls. Traditional Roche foam analyzers rely on visually observing the height of foam bursts, and readings are easily affected by the observation angle, lighting conditions, and the subjective judgment of the experimenter.

[0003] Foam adhesion interference: During the reading process, it often happens that the foam in the middle bursts while the surrounding foam remains attached to the wall, making it difficult to accurately determine the critical point of foam bursting. Lack of dynamic monitoring function: Traditional Roche foam analyzers cannot record the entire process of foam decay, but can only obtain the highest foam height, thus losing information in the time dimension. Utility Model Content

[0004] This invention aims to solve the error problem caused by manual readings in traditional Roche foam meters. By adopting non-contact light intensity detection and automated control technology, it achieves accurate and dynamic measurement of foam height.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automated measurement device for a Roche foam analyzer based on light intensity detection includes:

[0007] A conventional Roche foam apparatus, supports at both ends of the conventional Roche foam apparatus, 15 sets of wide-angle infrared beam sensors arranged vertically at 40mm intervals along the outer wall of the supports, each set of wide-angle infrared beam sensors includes an infrared emitting tube and a receiving tube, an arc-shaped clamp for fixing the wide-angle infrared beam sensors, and bolt holes and sensor grooves included in the arc-shaped clamp.

[0008] The signal processing unit, connected to the wide-angle infrared beam sensor, is used to convert the light intensity signal into foam height data;

[0009] The display unit is connected to the signal processing unit and is used to output the measurement results in real time.

[0010] The power module supplies power to each unit.

[0011] Preferred,

[0012] The infrared emitting tube and receiving tube of the wide-angle infrared through-beam sensor are fixed by the sensor groove in the arc-shaped clamp.

[0013] Preferably, the signal processing unit comprises:

[0014] The data calibration module is used to dynamically adjust the light intensity threshold based on the liquid transmittance. Its calibration logic is as follows:

[0015] .

[0016] Preferably, the display unit integrates a capacitive touchscreen, supporting the following interactive functions:

[0017] The sampling frequency can be set to 0.1-10Hz;

[0018] The custom alarm threshold is: light intensity sudden change rate > 15% / second;

[0019] Adjust the display mode to: Real-time curve / numerical table.

[0020] Preferred,

[0021] The generated real-time curve is a graph of light intensity over time at a constant measurement height;

[0022] The generated numerical table includes height priority algorithm logic: if multiple sensors trigger simultaneously, the lowest trigger height is selected as the valid value, and abnormal signals with a trigger time difference of more than 2 seconds between adjacent heights are ignored.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. Automated measurement is achieved. By using multiple sets of wide-angle infrared through-beam sensors, the transmittance changes at different heights are monitored in real time, thereby automatically outputting the height value of the foam and simplifying the experimental operation.

[0025] 2. The foam evaluation method is optimized by employing a height-priority algorithm. When multiple sensors trigger simultaneously, the system intelligently selects the lowest trigger height as the valid value. This design effectively avoids the influence of foam adhesion on the measurement results. Since foam adhesion often leads to sensor misjudgment, mistaking inaccurate foam heights for valid data, this invention further improves measurement accuracy by ignoring abnormal signals where the trigger time difference between adjacent heights exceeds 2 seconds. Therefore, even in the case of foam adhesion, accurate readings are ensured, greatly improving the reliability of foam evaluation. Attached Figure Description

[0026] Figure 1 This is a front view of the overall design of an automated measuring device for a Roche foam analyzer based on light intensity detection, according to this utility model.

[0027] Figure 2This is a schematic diagram of the installation of a wide-angle infrared beam sensor for an automated measurement device of a Roche foam analyzer based on light intensity detection, according to this utility model.

[0028] Figure 3 This is a schematic diagram of the arc-shaped clamp structure of an automated measuring device for a Roche foam analyzer based on light intensity detection, according to this utility model.

[0029] Figure 4 This is a schematic diagram showing the positions of the infrared emitting tube and receiving tube of an automated measuring device for a Roche foam analyzer based on light intensity detection, according to this utility model.

[0030] In the diagram: 1. Conventional Roche foam analyzer; 2. Support frame; 3. Wide-angle infrared beam sensor; 4. Signal processing unit; 5. Display unit; 6. Power module; 7. Infrared emitting tube; 8. Receiving tube; 9. Arc-shaped clamp; 10. Data calibration module; 11. Capacitive touch screen; 12. Bolt hole; 13. Sensor groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] This application proposes an automated measurement device for a Roche foam meter based on light intensity detection, comprising: a conventional Roche foam meter 1, supports 2 at both ends of the conventional Roche foam meter, 15 sets of wide-angle infrared photoelectric sensors 3 arranged vertically at 40mm intervals along the outer wall of the supports 2, each set of wide-angle infrared photoelectric sensors 3 including an infrared emitting tube 7 and a receiving tube 8, an arc-shaped clamp 9 for fixing the wide-angle infrared photoelectric sensors 3, the arc-shaped clamp 9 including bolt holes 12 and sensor grooves 13; a signal processing unit 4 connected to the wide-angle infrared photoelectric sensors 3, used to convert light intensity signals into foam height data; a display unit 5 connected to the signal processing unit 4, used to output measurement results in real time; and a power supply module 6 for powering each unit; wherein, the infrared emitting tube 7 and the receiving tube 8 of the wide-angle infrared photoelectric sensors 3 are fixed by the sensor grooves 13 in the arc-shaped clamp 9.

[0033] Specifically, such as Figure 1-4As shown, first install the conventional Roche foam meter 1, ensuring it is in a vertical position, and then connect the two end supports 2. On the outer wall of the two end supports 2 of the conventional Roche foam meter 1, evenly install 15 sets of wide-angle infrared photoelectric sensors 3 along the vertical direction and fix them with arc-shaped clamps 9. At the same time, ensure that the ends of the infrared emitting tube 7 and the receiving tube 8 are aligned. Then connect the output end of the wide-angle infrared photoelectric sensor 3 to the signal processing unit, then connect it to the display touch screen, and finally connect it to the power supply.

[0034] In some embodiments, the signal processing unit 4 includes a data calibration module 10, used to dynamically adjust the light intensity threshold according to the liquid transmittance.

[0035] Specifically, such as Figure 1 As shown, distilled water was used as a reference liquid before the experiment. It was injected into a conventional Roche foam apparatus 1, and the wide-angle infrared beam sensor 3 was activated to record the initial light intensity. According to the formula:

[0036] ;

[0037] The threshold is dynamically adjusted; the sensor's response time is calibrated by adjusting the sampling frequency to ensure that the sensor can respond quickly to changes in light intensity.

[0038] In some embodiments, the display unit 5 integrates a capacitive touchscreen 11, which supports the following interactive functions:

[0039] The sampling frequency can be set to 0.1-10Hz;

[0040] The custom alarm threshold is: light intensity sudden change rate > 15% / second;

[0041] Adjust the display mode to: Real-time curve / numerical table.

[0042] The generated real-time curve is a light intensity time function graph at a certain measurement height; the generated numerical table includes the height priority algorithm logic: if multiple sensors trigger simultaneously, the lowest trigger height is selected as the valid value, and abnormal signals with a trigger time difference of >2 seconds between adjacent heights are ignored.

[0043] Specifically, such as Figure 1 As shown, the test agent is vertically injected into a conventional Roche foam apparatus 1. As the foam breaks, the light emitted by the infrared emitting tube 7 passes through the conventional Roche foam apparatus 1, causing a change in the light intensity reaching the receiving tube. According to the set sampling frequency, the abrupt change point of the light intensity in the curve can intuitively reflect the moment of foam breakage.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated measuring device for a Roche foam analyzer based on light intensity detection, characterized in that, include: A conventional Roche foam meter (1), supports (2) at both ends of the conventional Roche foam meter, 15 sets of wide-angle infrared photoelectric sensors (3) arranged vertically at 40mm intervals along the outer wall of the supports (2), each set of wide-angle infrared photoelectric sensors (3) includes an infrared emitting tube (7) and a receiving tube (8), an arc-shaped clamp (9) for fixing the wide-angle infrared photoelectric sensors (3), and bolt holes (12) and sensor grooves (13) included in the arc-shaped clamp (9). The signal processing unit (4) is connected to the wide-angle infrared beam sensor (3) and is used to convert the light intensity signal into foam height data; The display unit (5) is connected to the signal processing unit (4) and is used to output the measurement results in real time. The power module (6) supplies power to each unit.

2. The automated measuring device for Roche foam analyzer based on light intensity detection according to claim 1, characterized in that: The infrared emitting tube (7) and receiving tube (8) of the wide-angle infrared through-beam sensor (3) are fixed by the sensor groove (13) in the arc-shaped clamp (9).

3. The automated measuring device for a Roche foam analyzer based on light intensity detection according to claim 1, characterized in that: The signal processing unit (4) includes: The data calibration module (10) is used to dynamically adjust the light intensity threshold according to the liquid transmittance. Its calibration logic is as follows: 。 4. The automated measuring device for a Roche foam analyzer based on light intensity detection according to claim 1, characterized in that: The display unit (5) integrates a capacitive touchscreen (11) and supports the following interactive functions: The sampling frequency can be set to 0.1-10Hz; The custom alarm threshold is: light intensity sudden change rate > 15% / second; Adjust the display mode to: Real-time curve / numerical table.

5. The automated measuring device for a Roche foam analyzer based on light intensity detection according to claim 4, characterized in that: The generated real-time curve is a graph of light intensity over time at a constant measurement height; The generated numerical table includes height priority algorithm logic: if multiple sensors trigger simultaneously, the lowest trigger height is selected as the valid value, and abnormal signals with a trigger time difference of more than 2 seconds between adjacent heights are ignored.

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