CN2107020U - Data testing and analysing instrument for biochemical sensors - Google Patents
Data testing and analysing instrument for biochemical sensors Download PDFInfo
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- CN2107020U CN2107020U CN 91223496 CN91223496U CN2107020U CN 2107020 U CN2107020 U CN 2107020U CN 91223496 CN91223496 CN 91223496 CN 91223496 U CN91223496 U CN 91223496U CN 2107020 U CN2107020 U CN 2107020U
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Abstract
The utility model relates to a special instrument used for measuring and analyzing an electric signal which is outputted by a biochemical sensor. The instrument is composed of an advanced single chip computer and necessary external devices. The instrument of the utility model can automatically finishing collecting data, processing data, displaying results of the data and printing results for various biochemical sensors. The utility model is mainly used for detecting the content of biochemical small molecules and ions, such as saccharose, dextrose, cholesteryl, pH value, Na+[+] and K+[+], by a quantitative mode in industry, food service industry, medical industry, etc.
Description
The utility model relates to a kind of instrument that electric signal is measured and analyzed, and particularly relates to the data test analyser that the electric signal of biochemical sensor output is measured and analyzed.
Existing domestic biochemical sensor data test analyser is more rare, generally has only large-scale experiment chamber and large-scale research institute just to have, and design is complicated, costs an arm and a leg.For hospital, the factory of this quasi-instrument of needs, owing to there is not popular instrument, much works and can't carry out.
Goal of the invention of the present utility model is a kind of intelligent biology chemical sensor data test instrument of design, is equipped with computer software and carries out data analysis and error analysis, the record Measurement results.And has a versatility, can be to polarogram type sensor, film potential type sensor, and intelligentized data acquisition is carried out in the output of Optical Electro-Chemistry transducer, replace general special-purpose analytical and testing instrument, be particularly suitable for factory and carry out real-time data acquisition analysis and control, and the large batch of sample analysis of medical institutions detects.Can reach high precision, high-speed, low-cost, intelligentized test analysis requirement.
The utility model adopts advanced single-chip microcomputer to be equipped with the necessary external equipment composition, can finish data acquisition automatically to various biochemical sensors, data processing, and result's screen display and printing, this instrument also can be sent to PC/XT computer realization Multistage Control with data by the serial port of single-chip microcomputer.
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 2 is current/voltage (I/V) transducer synoptic diagram.
Accompanying drawing 3 is current potential/voltage (V/V) transducer synoptic diagram.
Accompanying drawing 4 is impedance/voltage (X/V) transducer synoptic diagram.
Below in conjunction with accompanying drawing the utility model is further described.
U1 is a single-chip microcomputer, U2 is an address latch, but U3 is erasable read only memory under program (EPROM), and U4 is random memory (RAM), and U5 is the interface that has extender, U6 is an A/D converter, U7 is a D/A converter, and U8, U9 are electronic switch, and U10 is accompanying drawing 2, accompanying drawing 3, accompanying drawing 4 represented current/voltage, current potential/voltage, impedance/voltage changer, U11 is a keyboard, and U12 is a printer.
Dissimilar biochemical sensors pass through U10, also be voltage/voltage, current/voltage, impedance/voltage changer, bigger voltage signal is changed and zoomed into to less voltage, electric current and impedance variation, control sequence through electronic switch enters A/D converter (U6), the converting electrical signal digital signal is sent into single-chip microcomputer (U1), single-chip microcomputer U1 analyzes this signal, compare, revise and draw correct result, expand 24 I/O by the P1 mouth through U5, connect keyboard, display and printer are by display video data or its result of printer prints.The user can also send into single-chip microcomputer by keyboard through U5 with various control commands and various setting.These orders are delivered to biochemical sensor so that suitable operating voltage and working current to be provided by D/A converter after single-chip microcomputer is handled, all data of single-chip microcomputer all can be given PC/XT computing machine by serial port, illustrate that just the present invention can also use as the slave computer of Multistage Control.
V/V, I/V, X/V transducer also claim simulating signal input pre-process circuit of the present utility model, simulating signal input pre-process circuit is three kinds of transducers that the operational amplifier by high-precision low-drift constitutes: high input impedance is to the voltage/voltage changer (V/V) of low output impedance, impedance/voltage changer (X/V) that input current becomes voltage signal to the current/voltage transducer (I/V) and the balance impedance bridge difference signal of output voltage.Pre-process circuit can be accepted voltage signal, current signal, and impedance change signal is to be fit to the requirement of different biochemical sensor output signals.
The simulating signal of each sensor signal pre-process circuit output of A/D transducer scan conversion at full speed.Note the instantaneous digitized value of each signal.Sweep velocity is adjustable to 100KHz from the extremely low speed of 0.01Hz, with the response requirement of the biochemical sensor that adapts to differential responses speed.
The DA transducer is that this operating voltage or electric current have high accuracy and degree of stability for biochemical sensor provides suitable operating voltage or electric current.Utilize operating voltage or reference electric current can realize deciding voltage, decide electric current, the test of voltage scanning polarogram and on a large scale current potential accurately test.Circuit of measurement and control is to finish measurement range to select, and the test of environment temperature and control can make test result more accurately and reliably, and can make biochemical sensor work in proper temperature environment.
More than four kinds of circuit all under the control of inner single-chip microcomputer according to operator's instruction and set test procedure work.Single-chip microcomputer is noted selected range of reference data, the circuit of measurement and control of digital numerical value result, DA transducer output of AD transducer collection and the ambient temperature data of testing, then this digital data signal is carried out computer digit signal analysis such as smothing filtering, differential, proofread and correct reference signal, revise environmental impact, and according to the crossing number of type of sensor and a plurality of sensors according to one's analysis, calculate respective sensor signal significative results data.
This device has a plurality of input sensor signal interfaces, generally be more than four, can carry out the processing of a plurality of sensor signals simultaneously, sensor signal that so just can be correlated with or incoherent is handled, relevant signal can carry out combined treatment, and it is relevant to making a gesture of measuring example so that draw: with sucrose electrode test cane sugar content, need simultaneously with glucose electricity level test glucose content, so that draw cane sugar content accurately; The analysis connotation of incoherent signal is that the signal to the similar and different sensor in many places carries out the while and handles example side by side: with many electricity levels or combined electrical level simultaneously tested K+, Na+, PH, glucose, the content of materials such as cholesterol.
This device computer-processing software of can packing into realizing data communication, file, record, and can carry out the error analysis of test data, and carry out long-term data statistic analysis, the error condition of supervision analytical test.
U1 is 8031 circuit, and U2 can be the 74LS373 circuit,
U3 can be 2764 circuit, and U5 can be 8155 circuit,
U6 can be the MC14433 circuit, and U7 can be 0832 circuit,
U8, U9 can be the 74LS138 circuit.
The utility model shell can be made different shape, and its material can be metal or plastics.The utility model can be widely used in big infirmary, Biochemical Lab, places such as epidemic prevention department can be to the detection by quantitative of carrying out of the biochemical micromolecule in the industries such as industry, food, medical treatment, ion concentration, as sucrose, glucose, cholesterol and pH value, Na+, K+ etc.Because simple in structure, practical, it is accurate, quick to calculate, and cheap, and is subjected to users' welcome.
Claims (2)
1, a kind of biochemical sensor data test analyser, it contains keyboard U
11Single chip circuit U
1, shell is characterized in that it also has voltage/voltage, current/voltage, impedance/voltage changer more than two, transducer is by electronic switching circuit (U
8, U
9) order sheet machine circuit U
1
2, a kind of biochemical sensor data test analyser as claimed in claim is characterized in that voltage/voltage, current/voltage, impedance/voltage changer are made of the high-precision low-drift operational amplifier.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 91223496 CN2107020U (en) | 1991-08-23 | 1991-08-23 | Data testing and analysing instrument for biochemical sensors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 91223496 CN2107020U (en) | 1991-08-23 | 1991-08-23 | Data testing and analysing instrument for biochemical sensors |
Publications (1)
Publication Number | Publication Date |
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CN2107020U true CN2107020U (en) | 1992-06-10 |
Family
ID=4930167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 91223496 Pending CN2107020U (en) | 1991-08-23 | 1991-08-23 | Data testing and analysing instrument for biochemical sensors |
Country Status (1)
Country | Link |
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CN (1) | CN2107020U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1996000B (en) * | 2005-10-17 | 2011-11-23 | 生命扫描有限公司 | A system and method of processing a current sample for calculating a glucose concentration |
CN108614020A (en) * | 2018-07-27 | 2018-10-02 | 安徽大学 | A kind of the optical electro-chemistry detection method and detection device of concentration of heavy metal ion |
-
1991
- 1991-08-23 CN CN 91223496 patent/CN2107020U/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1996000B (en) * | 2005-10-17 | 2011-11-23 | 生命扫描有限公司 | A system and method of processing a current sample for calculating a glucose concentration |
CN108614020A (en) * | 2018-07-27 | 2018-10-02 | 安徽大学 | A kind of the optical electro-chemistry detection method and detection device of concentration of heavy metal ion |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
AD01 | Patent right deemed abandoned | ||
C20 | Patent right or utility model deemed to be abandoned or is abandoned |