CN103549937B - Tissue-swelling measurement instrument and control method thereof - Google Patents
Tissue-swelling measurement instrument and control method thereof Download PDFInfo
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- CN103549937B CN103549937B CN201310546523.1A CN201310546523A CN103549937B CN 103549937 B CN103549937 B CN 103549937B CN 201310546523 A CN201310546523 A CN 201310546523A CN 103549937 B CN103549937 B CN 103549937B
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Abstract
The invention discloses a tissue-swelling measurement instrument and a control method thereof, and belongs to the technical field of swelling measurement, in particular to the tissue-swelling measurement instrument and the control method thereof. The invention provides a tissue-swelling measurement instrument with accurate measurement and convenience in use and a control method thereof. The swelling measurement instrument comprises a measurement fixed contact and a measurement moving contact. The tissue-swelling measurement instrument is structurally characterized in that the measurement fixed contact is arranged above the measurement fixed contact and is driven to move up and down by an up-down driving device; the lower end of the measurement moving contact is provided with a temperature measuring instrument, a first displacement sensor and a vertical rod; the first displacement sensor is used for measuring the distance between the measurement fixed contact and the measurement moving contact; the vertical rod can move up and down; the lower end of the vertical rod extends out of the measurement moving contact and is provided with a temperature sensor; output ports of the temperature measuring instrument, the first displacement sensor and the temperature sensor are respectively connected with an input port of a controller of the up-down driving device; a port of the controller is respectively connected with a port of a communication module and a port of an upper computer; the other port of the communication module is connected with a port of a DSP (Digital Signal Processor) central control module.
Description
Technical field
the invention belongs to swelling field of measuring technique, particularly relate to a kind of swollen tissue measuring instrument and control method thereof.
Background technology
in biological experiment, have a class experiment to be by various means induced tissue edema, the degree by measuring edema between matched group and experimental group studies intervention factor biological action played in the process.
at present mainly reflect swelling degree by measuring tissue thickness's change before and after edema, the comparatively general instrument of application has the diastimeter of slide gauge and industrial measurement cylinder, ball diameter.But such instrument is mainly applicable to measure the object with some strength, when two range finding end points of survey tool contact with direct intimate, object under test deformation is minimum, negligible; Thus, the distance between two range finding end points i.e. required length to be measured.And swollen tissue elasticity is very large, slight pressure can produce comparatively large deformation.Such as, 5 ~ 8 week age, experiment mice ear thickness generally had 0.25mm thickness, can reach 0.2 ~ 0.45mm after swelling.The power that manual moving cursor slide calliper rule produce is easy to extrude swelling ear to be measured, the reading recorded has the error of 0.2 ~ 0.8mm, and this error and operator's maneuver, estimate be accustomed to, the subjective factors such as reading custom has very big relation, the data difference that different operating person repeats is very big, when the data of two different disposal groups contrast, false positive or false negative rate high.The another kind of range finding instrument by spring driven electronics automatic reading overcomes the subjective error of manual slide gauge to a certain extent, but the spring with different coefficient of elasticity still has certain extruding force to specimen.In actual mechanical process, when two range finding end points of survey tool all contact with specimen, (now electronical reading is actual (real) thickness, but gauger cannot judge when reading is the reading of actual (real) thickness) when stablizing to final electronical reading, this electronical reading is not stopping to change; And when electronical reading is stablized (3 second reading do not change), obviously can see that the surperficial indenture having pressurized to be formed of swollen tissue is (in different swelling degree situation, it is dark that this indenture can reach about 0.1mm, have a strong impact on actual result), illustrate that this reading is less than actual swelling thickness, this situation, reduces swelling degree difference, as easy as rolling off a logly causes false-negative result.
its operation principle of light calibrator can not measuring targets surface build-up of pressure, but hair, scurf etc. that organism surface tilts can interferometries, and reading is increased.
in addition, show as the swelling body of same degree bulge in appearance, its content may have very big-difference, and content is the swelling of Hypertrophic solid tissue can be that the swelling of mobility liquid is more hard than content.Therefore, except the dimensional variation measuring swelling generation, its swelling character is also an important parameter, and does not also have the instrument can measuring swelling character at present.
at medical field, the generation of edema is very common, has anasarca and localized edema, and the former is by cause of disease single cent heart source property, kidney source property, liver source property, dystrophic, incretion, allergy, anemicus, connective tissue disease edema etc. again; Localized edema also has the types such as phlebemphraxis, lymph are obstructive, struvite, allergy edema.The degree of edema that different pathogeny causes at different parts and period and the character of edema have very big-difference, but observe edema at present, whether be only by finger presses subcutaneous tissue, observing having significantly depression to judge qualitatively to have or without edema, Measures compare is coarse.And the character judging further objectively edema and the degree of measuring edema comparatively accurately all have very high potential to provide objective basis as clinical discrimination edema occurrence cause, clinical application, judgement progression of disease and prognosis.Also do not have pertinent instruments, equipment, method can complete these at present to measure.
Summary of the invention
the present invention is exactly for the problems referred to above, provides a kind of and measures swollen tissue measuring instrument accurate, easy to use and control method thereof.
for achieving the above object, the present invention adopts following technical scheme, swollen tissue measuring instrument of the present invention comprises to be measured static contact and measures moving contact, its structural feature is measured moving contact and is placed in measure to drive above static contact and by up-down drive device and moves up and down, the lower end measuring moving contact is provided with temperature measurer, measures static contact and measure the first displacement transducer of moving contact spacing and montant moving up and down, and montant lower end is stretched out and measured moving contact and be provided with temperature sensor; Described temperature measurer, the first displacement transducer are all connected with the input port of the controller of described up-down drive device with the output port of temperature sensor, the port of controller is connected with host computer port with communication module port respectively, communication module another port is connected with DSP central control module port, and the control signal output port of DSP central control module is connected with the input port of described controller.
as a kind of preferred version, the lower end of measurement moving contact of the present invention is provided with vertical bar shape cavity, and vertical bar shape cavity top is provided with lagging, and described montant runs through vertical bar shape cavity and lagging; Be provided with spring between lagging and vertical bar shape cavity bottom surface, lower spring end is connected with montant bottom.
as another kind of preferred version, measurement moving contact lower end of the present invention is also provided with the second displacement sensor measuring described spring deformation amount.
as another kind of preferred version, up-down drive device of the present invention adopts motor, and described measurement static contact and measurement moving contact are L shape contact, and the vertical edge side measuring moving contact is provided with slide block, and slide block is arranged in the vertical slideway of measurement static contact vertical edge; Described motor is arranged on the upper end of vertical slideway.
as another kind of preferred version, first displacement transducer of the present invention be arranged on measure moving contact vertical edge lower end, montant, temperature measurer and second displacement sensor are arranged on the outside measuring moving contact horizontal edge, and temperature measurer and second displacement sensor are separately positioned on the both sides of montant.
secondly, controller of the present invention comprises single-chip microcomputer, power module, control panel, display module, drive circuit, filtration module, manostat, memorizer, photoelectric isolating circuit, transceiver, RS232 interface, online programming interface, power module port is connected with single-chip microcomputer, control panel, display module, drive circuit, filtration module port respectively, the input port of manostat is connected with drive circuit output port with filtration module output port respectively, and the output port of manostat is connected with the power supply port of motor; Described one-chip machine port is connected with port memory, photoelectric isolating circuit output port, transceiver port, online programming interface, control panel port, display module port, drive circuit input port respectively, transceiver another port is connected with described host computer port by RS232 interface, and photoelectric isolating circuit input port is connected with the output port of the control signal of described first displacement transducer, second displacement sensor, temperature measurer, temperature sensor, DSP central control module respectively.
in addition, manostat of the present invention adopts M5230 manostat, and memorizer adopts M6264P-15 memorizer, and transceiver adopts MAX3232 transceiver, and single-chip microcomputer adopts PIC16F877 single-chip microcomputer, and motor adopts voice coil motor, and temperature measurer adopts infrared radiation thermometer.
the another kind of swollen tissue measuring instrument of the present invention comprises to be measured static contact and measures moving contact, its structural feature measurement moving contact is placed in be measured above static contact, and the lower end measuring moving contact is provided with the first displacement transducer and the temperature sensor of measuring static contact and measuring moving contact spacing; The top of described measurement static contact is provided with housing, gear, vertical tooth bar, gear spinning reduction spring and data analysis module is provided with in housing, vertical rack and pinion engagement, the lower end of vertical tooth bar is connected with the upper end of described measurement moving contact, and gear is by rotating by hand drive on housing; Described first displacement transducer is all connected with the input port of described data analysis module with the output port of temperature sensor, and the output port of data analysis module is connected with the display of surface of shell.
the third swollen tissue measuring instrument of the present invention comprises to be measured static contact and measures moving contact, its structural feature is measured moving contact and is placed in measure above static contact and to be driven by up-down drive device by spring and moves up and down, the lower end measuring moving contact is provided with temperature measurer, temperature sensor, measurement measurement static contact and the first displacement transducer measuring moving contact spacing, measures moving contact top and is provided with the second displacement sensor measuring described spring deformation amount; Described temperature measurer, the first displacement transducer, second displacement sensor are all connected with the input port of the controller of described up-down drive device with the output port of temperature sensor, the port of controller is connected with host computer port with communication module port respectively, communication module another port is connected with DSP central control module port, and the control signal output port of DSP central control module is connected with the input port of described controller.
swollen tissue measuring instrument control method comprises the following steps.
1) when measurement moving contact is in the process of swelling movement, what temperature sensor was real-time is uploaded to DSP central control module by temperature data by controller, temperature measurer and the data of temperature sensor are carried out real-time comparing and are produced difference by DSP central control module, the drive singal of motor is regulated, control the rotating speed of motor, namely measure the movement velocity of moving contact.
2) when described difference is larger, motor speed is accelerated; When difference is less, motor speed is reduced, and with the reduction of difference, motor speed reduce gradually.
3) when temperature sensor contacts with swelling surface, there is flex point in temperature that temperature sensing measures, and motor is with rotating speed rotation more slowly; Measuring moving contact continues close to swelling, and spring generation deformation, thermomechanical processing is uploaded to DSP central control module by controller by second displacement sensor.
4) when the temperature that temperature sensor measures is consistent with the temperature of temperature measurer, measure and terminate, motor stopping; The described temperature flex point time that temperature sensor measures by DSP central control module is corresponding with the time of the first displacement transducer, can draw according to the measured value of now the first displacement transducer and measure moving contact and the accurate distance measuring static contact, under this distance deducts naturalness, the distance and swelling size dimension of measuring moving contact are stretched out in montant lower end; According to spring deformation amount, namely the measured value of second displacement sensor and temperature flex point time are to the homologous thread of time period measuring the end time, draw swelling hardness; Described swelling size dimension and swelling hardness draw by host computer analysis.
beneficial effect of the present invention.
present invention eliminates the Spring driving part in typical measuring arrangements, utilize good digital processor DSP to control the servo controller of up-down drive device, and then the motion of control survey moving contact, motor control is accurate.
in addition, the temperature sensor by montant lower end judges the relative position relation measuring moving contact and swelling, for the generation of up-down drive device drive singal provides foundation; And the end time determining to measure is convenient to by the temperature gap of temperature sensor and temperature measurer.And the temperature flex point information provided by temperature sensor, is convenient to the thickness determining swelling.
secondly, the present invention measures moving contact and the spacing measuring static contact by the first displacement transducer real time record, analyzes each measurement data, determine swelling size finally by host computer, measures accurately.
Accompanying drawing explanation
below in conjunction with the drawings and specific embodiments, the present invention will be further described.Scope is not only confined to the statement of following content.
fig. 1 is structural representation of the present invention.
fig. 2 is the A-A sectional view of Fig. 1.
fig. 3 is the B portion enlarged drawing of Fig. 1.
fig. 4 is schematic block circuit diagram of the present invention.
fig. 5 is swelling overhaul flow chart of the present invention.
fig. 6 is swelling hardness example experiment curv of the present invention.(measured value that vertical coordinate provides for second displacement sensor)
in figure, 1 being motor for measure static contact, 2 be the first displacement transducer, 3,4 being second displacement sensor for measuring moving contact, 5,6 be temperature sensor, 7 be montant, 8 be spring, 9 be temperature measurer, 10 be slide block, 11 be slideway, 12 be lagging, 13 for vertical bar shape cavity.
Detailed description of the invention
as shown in the figure, swollen tissue measuring instrument of the present invention comprises to be measured static contact 1 and measures moving contact 4, measure moving contact 4 to be placed in measure to drive above static contact 1 and by up-down drive device and to move up and down, the lower end measuring moving contact 4 is provided with temperature measurer 9, measures static contact 1 and the first displacement transducer 2 and the montant moving up and down 7 of measuring moving contact 4 spacing, and montant 7 lower end is stretched out and measured moving contact 4 and be provided with temperature sensor 6; Described temperature measurer 9, first displacement transducer 2 is all connected with the input port of the controller of described up-down drive device with the output port of temperature sensor 6, the port of controller is connected with host computer port with communication module port respectively, communication module another port is connected with DSP central control module port, and the control signal output port of DSP central control module is connected with the input port of described controller.
described up-down drive device adopts motor 3.
the lower end of described measurement moving contact 4 is provided with vertical bar shape cavity 13, and vertical bar shape cavity 13 top is provided with lagging 12, and described montant 7 runs through vertical bar shape cavity 13 and lagging 12; Be provided with spring 8 between lagging 12 and vertical bar shape cavity 13 bottom surface, spring 8 lower end is connected with montant 7 bottom.Described spring 8 can adopt the small coefficient spring mechanism of high accuracy.
described measurement moving contact 4 lower end is also provided with the second displacement sensor 5 measuring described spring 8 deformation process.
described measurement static contact 1 and measurement moving contact 4 are L shape contact, and the vertical edge side measuring moving contact 4 is provided with slide block 10, and slide block 10 is arranged in the vertical slideway 11 of measurement static contact 1 vertical edge; Described motor 3 is arranged on the upper end of vertical slideway 11.
described first displacement transducer 2 be arranged on measure moving contact 4 vertical edge lower end, montant 7, temperature measurer 9 and second displacement sensor 5 are arranged on the outside measuring moving contact 4 horizontal edge, and temperature measurer 9 and second displacement sensor 5 are separately positioned on the both sides of montant 7.
described controller comprises single-chip microcomputer, power module, control panel, display module, drive circuit, filtration module, manostat, memorizer, photoelectric isolating circuit, transceiver, RS232 interface, online programming interface, power module port is connected with single-chip microcomputer, control panel, display module, drive circuit, filtration module port respectively, the input port of manostat is connected with drive circuit output port with filtration module output port respectively, and the output port of manostat is connected with the power supply port of motor 3; Described one-chip machine port is connected with port memory, photoelectric isolating circuit output port, transceiver port, online programming interface, control panel port, display module port, drive circuit input port respectively, transceiver another port is connected with described host computer port by RS232 interface, and photoelectric isolating circuit input port is connected with the output port of the control signal of described first displacement transducer 2, second displacement sensor 5, temperature measurer 9, temperature sensor 6, DSP central control module respectively.
described manostat adopts M5230 manostat, and memorizer adopts M6264P-15 memorizer, and transceiver adopts MAX3232 transceiver, and single-chip microcomputer adopts PIC16F877 single-chip microcomputer, and motor 3 adopts voice coil motor, and temperature measurer 9 adopts infrared radiation thermometer.
the another kind of swollen tissue measuring instrument of the present invention comprises to be measured static contact 1 and measures moving contact 4, measurement moving contact 4 is placed in be measured above static contact 1, and the lower end measuring moving contact 4 is provided with first displacement transducer 2 and the temperature sensor of measuring static contact 1 and measuring moving contact 4 spacing; The top of described measurement static contact 1 is provided with housing, gear, vertical tooth bar, gear spinning reduction spring and data analysis module is provided with in housing, vertical rack and pinion engagement, the lower end of vertical tooth bar is connected with the upper end of described measurement moving contact 4, and gear is by rotating by hand drive on housing; Described first displacement transducer 2 is all connected with the input port of described data analysis module with the output port of temperature sensor, and the output port of data analysis module is connected with the display of surface of shell.Described data analysis module can adopt the analysis mode identical with described step 4) host computer to calculate the thickness of swelling.
the third swollen tissue measuring instrument of the present invention comprises to be measured static contact 1 and measures moving contact 4, measure moving contact 4 to be placed in measure above static contact 1 and to be driven by up-down drive device by spring and to move up and down, the lower end measuring moving contact 4 is provided with temperature measurer 9, temperature sensor, measurement measurement static contact 1 and the first displacement transducer 2 measuring moving contact 4 spacing, measures moving contact 4 top and is provided with the second displacement sensor measuring described spring deformation amount; Described temperature measurer 9, first displacement transducer 2, second displacement sensor are all connected with the input port of the controller of described up-down drive device with the output port of temperature sensor, the port of controller is connected with host computer port with communication module port respectively, communication module another port is connected with DSP central control module port, and the control signal output port of DSP central control module is connected with the input port of described controller.Spring in the third swollen tissue measuring instrument of the present invention and second displacement sensor are also the hardness for measuring swelling, and the analysis of swelling hardness can adopt the analysis mode identical with described step 4).
swollen tissue measuring instrument control method comprises the following steps.
1) when measurement moving contact 4 is in the process of swelling movement, what temperature sensor 6 was real-time is uploaded to DSP central control module by temperature data by controller, temperature measurer 9 and the data of temperature sensor 6 are carried out real-time comparing and are produced difference by DSP central control module, regulate the drive singal of motor 3, namely the rotating speed controlling motor 3 measures the movement velocity of moving contact 4.
2) when described difference is larger, motor 3 rotating speed is accelerated; When difference is less, motor 3 rotating speed is reduced, and with the reduction of difference, motor 3 rotating speed reduce gradually.
3) when temperature sensor 6 contacts with swelling surface, temperature sensor 6 measure temperature and occur flex point, motor 3 rotates with rotating speed more slowly; Measuring moving contact 4 continues to swelling close, and deformation occurs spring 8, and thermomechanical processing is uploaded to DSP central control module by controller by second displacement sensor 5.
4) when the temperature that temperature sensor 6 measures is consistent with the temperature of temperature measurer 9, measure and terminate, motor 3 is shut down; The described temperature flex point time that temperature sensor 6 measures by DSP central control module is corresponding with the time of the first displacement transducer 2, can draw according to the measured value of now the first displacement transducer 2 and measure moving contact 4 and the accurate distance measuring static contact 1, under this distance deducts naturalness, the distance and swelling size dimension of measuring moving contact 4 are stretched out in montant 7 lower end; According to spring 8 deformation quantity, namely the measured value of second displacement sensor 5 and temperature flex point time are to the homologous thread of time period measuring the end time, draw swelling hardness; Described swelling size dimension and swelling hardness draw by host computer analysis.
below in conjunction with accompanying drawing, work process of the present invention is described.
when performing measuring operation, controller first carries out beginning energy to all measurement modules, and then the data of measurement are uploaded to DSP by communication module by infrared thermometer 9, temperature sensors of high precision 6, first displacement transducer 2, second displacement sensor 5.DSP carries out real-time analysis and storage to the data uploaded, when infrared thermometer 9 measure temperature gap that temperature and temperature sensors of high precision 6 measure very large time, DSP will send control signal to the control unit of voice coil motor 3, the speed of voice coil motor 3 is improved, drives measurement moving contact 4 close to swelling position fast.Along with the movement of measuring moving contact 4, will be more and more nearer with swelling surface, the temperature that temperature sensors of high precision 6 measures is also by more and more close to the temperature that infrared thermometer 9 measures, and both differences are more and more less by what become, and DSP makes the speed goes of motor 3 slow by sending control signal.When high-precision temperature temperature sensor 6 contacts with swelling surface, will there is large amplification (flex point) in the temperature that temperature sensor 6 measures, now DSP will send the instruction that motor 3 speed is reduced further.When measuring moving contact 4 and continuing mobile, temperature sensor 6 will be pressed onto swelling surface, and generation deformation is produced elastic force by swelling surface, and montant 7 moves, and drive on spring 8 lower end and move; Due to the barrier effect of lagging 12, spring 8 upper end is motionless, and compressive deformation occurs spring 8, and its whole deformation process will be recorded by second displacement sensor 5.Continuation raises final identical with the temperature of infrared thermometer 9 by the temperature that temperature sensor 6 is surveyed; now DSP will send detection and complete instruction; adverse movement makes measurement moving contact 4 and the aperture measured between static contact 1 strengthen then to shut down by motor 3, and by all data upload to host computer.By terminal data processing module, all data are processed, finally obtain the related data of swelling, complete the measurement to swelling.
be understandable that, above about specific descriptions of the present invention, the technical scheme described by the embodiment of the present invention is only not limited to for illustration of the present invention, those of ordinary skill in the art is to be understood that, still can modify to the present invention or equivalent replacement, to reach identical technique effect; Needs are used, all within protection scope of the present invention as long as meet.
Claims (5)
1.
swollen tissue measuring instrument, comprise and measure static contact (1) and measure moving contact (4), it is characterized in that measuring moving contact (4) is placed in measurement static contact (1) top and is moved up and down by up-down drive device driving, the lower end measuring moving contact (4) is provided with temperature measurer (9), measures static contact (1) and the first displacement transducer (2) and the montant moving up and down (7) of measuring moving contact (4) spacing, and montant (7) lower end is stretched out and measured moving contact (4) and be provided with temperature sensor (6); Described temperature measurer (9), the first displacement transducer (2) are all connected with the input port of the controller of described up-down drive device with the output port of temperature sensor (6), the port of controller is connected with host computer port with communication module port respectively, communication module another port is connected with DSP central control module port, and the control signal output port of DSP central control module is connected with the input port of described controller; The lower end of described measurement moving contact (4) is provided with vertical bar shape cavity (13), and vertical bar shape cavity (13) top is provided with lagging (12), and described montant (7) runs through vertical bar shape cavity (13) and lagging (12); Be provided with spring (8) between lagging (12) and vertical bar shape cavity (13) bottom surface, spring (8) lower end is connected with montant (7) bottom.
2.
according to claim 1, swollen tissue measuring instrument, is characterized in that described measurement moving contact (4) lower end is also provided with the second displacement sensor (5) measuring described spring (8) deformation process.
3.
swollen tissue measuring instrument according to claim 2, it is characterized in that described up-down drive device adopts motor (3), described measurement static contact (1) and measurement moving contact (4) are L shape contact, the vertical edge side measuring moving contact (4) is provided with slide block (10), and slide block (10) is arranged in the vertical slideway (11) of measurement static contact (1) vertical edge; Described motor (3) is arranged on the upper end of vertical slideway (11); Described first displacement transducer (2) be arranged on measure moving contact (4) vertical edge lower end, montant (7), temperature measurer (9) and second displacement sensor (5) are arranged on the outside measuring moving contact (4) horizontal edge, and temperature measurer (9) and second displacement sensor (5) are separately positioned on the both sides of montant (7); Described controller comprises single-chip microcomputer, power module, control panel, display module, drive circuit, filtration module, manostat, memorizer, photoelectric isolating circuit, transceiver, RS232 interface, online programming interface, power module port is connected with single-chip microcomputer, control panel, display module, drive circuit, filtration module port respectively, the input port of manostat is connected with drive circuit output port with filtration module output port respectively, and the output port of manostat is connected with the power supply port of motor (3); Described one-chip machine port is connected with port memory, photoelectric isolating circuit output port, transceiver port, online programming interface, control panel port, display module port, drive circuit input port respectively, transceiver another port is connected with described host computer port by RS232 interface, and photoelectric isolating circuit input port is connected with the output port of the control signal of described first displacement transducer (2), second displacement sensor (5), temperature measurer (9), temperature sensor (6), DSP central control module respectively.
4.
swollen tissue measuring instrument according to claim 3, it is characterized in that described manostat adopts M5230 manostat, memorizer adopts M6264P-15 memorizer, transceiver adopts MAX3232 transceiver, single-chip microcomputer adopts PIC16F877 single-chip microcomputer, motor (3) adopts voice coil motor, and temperature measurer (9) adopts infrared radiation thermometer.
5.
as Claims 1 to 4 arbitrary as described in the control method of swollen tissue measuring instrument, it is characterized in that comprising the following steps:
1) when measurement moving contact (4) is in the process of swelling movement, what temperature sensor (6) was real-time is uploaded to DSP central control module by temperature data by controller, temperature measurer (9) and the data of temperature sensor (6) are carried out real-time comparing and are produced difference by DSP central control module, regulate the drive singal of motor (3), the rotating speed controlling motor (3) namely measures the movement velocity of moving contact (4);
2) when described difference is larger, motor (3) rotating speed is accelerated; When difference is less, motor (3) rotating speed is reduced, and with the reduction of difference, motor (3) rotating speed reduce gradually;
3) when temperature sensor (6) contacts with swelling surface, there is flex point in temperature sensor (6) temperature that measures, and motor (3) is with rotating speed rotation more slowly; Measuring moving contact (4) continues close to swelling, and deformation occurs spring (8), and thermomechanical processing is uploaded to DSP central control module by controller by second displacement sensor (5);
4) when the temperature that temperature sensor (6) measures is consistent with the temperature of temperature measurer (9), measure and terminate, motor (3) is shut down; The described temperature flex point time that temperature sensor (6) measures by DSP central control module is corresponding with the time of the first displacement transducer (2), can draw according to the measured value of now the first displacement transducer (2) and measure moving contact (4) and the accurate distance measuring static contact (1), under this distance deducts naturalness, the distance and swelling size dimension of measuring moving contact (4) are stretched out in montant (7) lower end; According to spring (8) deformation quantity, namely the measured value of second displacement sensor (5) and temperature flex point time are to the homologous thread of time period measuring the end time, draw swelling hardness; Described swelling size dimension and swelling hardness draw by host computer analysis.
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| CN106781265B (en) * | 2015-06-24 | 2018-09-25 | 厦门大学附属中山医院 | A kind of neck swelling alarm reminded in time |
| JP2018538079A (en) * | 2015-12-21 | 2018-12-27 | コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． | Device for tissue condition measurement |
| CN106037747B (en) * | 2016-06-16 | 2018-08-31 | 齐齐哈尔医学院 | Muroid toes swelling analyzer |
| CN111297330B (en) * | 2020-02-25 | 2021-01-08 | 中南大学湘雅二医院 | Device and method for measuring nose tip mobility and support stability |
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| CN115778393B (en) * | 2022-10-18 | 2024-02-20 | 国家康复辅具研究中心 | Method and system for measuring rigidity of human tissue |
| CN116107366B (en) * | 2023-04-07 | 2023-06-13 | 中国空气动力研究与发展中心低速空气动力研究所 | Temperature control method, controller and device |
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| CN2675044Y (en) * | 2004-01-15 | 2005-02-02 | 山东大学 | Apparatus for testing inflammatory swelling extent of rat foot pad |
| CN201036553Y (en) * | 2007-06-06 | 2008-03-19 | 娄建石 | Experimental device for measuring animal toe swelling |
| CN203619532U (en) * | 2013-11-07 | 2014-06-04 | 中国医科大学附属第一医院 | Tissue swelling measuring instrument |
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