CN203241371U - Portable multi-index impedance biosensor device - Google Patents
Portable multi-index impedance biosensor device Download PDFInfo
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- CN203241371U CN203241371U CN 201320025201 CN201320025201U CN203241371U CN 203241371 U CN203241371 U CN 203241371U CN 201320025201 CN201320025201 CN 201320025201 CN 201320025201 U CN201320025201 U CN 201320025201U CN 203241371 U CN203241371 U CN 203241371U
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Abstract
The utility model provides a portable multi-index impedance biosensor device, belonging to the field of modern detection. The device is composed of a single-chip microcomputer (SCM), an amplification circuit, an A/D (analog/digital) converter, an LCD (liquid crystal display), an alarm and the like. According to the portable multi-index impedance biosensor device, an impedance apparatus is used for determining impedance of a detected object according to the input detected object type and the amplification circuit is used for carrying out voltage amplification; and then the SCM system is used for working out the content of the detected object, the LCD device is used for displaying the content of the detected object and the alarm is used for alarming when the content of the detected object exceeds a safety value. The portable multi-index impedance biosensor device has the innovation points that multi-index determination is achieved and the functions of overtime alarming and the like are realized.
Description
Technical field
The present invention relates to a kind of portable multi-function impedance biosensor device, device can be realized measuring different resistance values according to input measured object kind, to resistance value amplify, the functions such as calculating, LCD demonstration and overload alarm.The invention belongs to the modern measure field.
Background technology
Along with becoming increasingly conspicuous of food-safety problem, the demand for development of food safety detection technology is also more and more higher.So the research of biology sensor aspect also more and more causes the experts and scholars' in each field concern, to adapt to the high request of food safety detection.
At present, the food safety detection biology sensor mainly contains galvanochemistry type sensor, transducers of the optical type device, Conductometric chemical sensor, piezo-type sensor etc., its principle of work is: test substance and biological identification element generation biochemical reaction, produce biological information and be converted into the signals such as electricity, light by signal, amplify and output through instrument again, reach the purpose of analyzing and testing.When current biology sensor carries out food safety detection, to pass through the steps such as determinand pre-service, instrument detection, data processing, each several part work all needs each relevant speciality personnel to carry out, and when detection material changes, so need of work is all done again, manpower, financial resources expend greatly, weak effect.Therefore, design a can be convenient, fast, accurate, and can realize that the biosensor arrangement that many indexs measure simultaneously is very necessary.
There are the shortcomings such as cost height, poor accuracy for existing food safety detection process, the present invention discloses a kind of portable many indexs impedance biosensor device, can realize simultaneously multiple determinand being carried out fast detecting, and can and have the overload alarm function in real time demonstration of testing result.
Portable many indexs impedance biosensor disclosed by the invention system carries out the functions such as biology, chemical signal detection, Electric signal processing integrated, microminiaturized, can realize fast, trace and many indexs detect; Have testing result is shown and the overload alarm function in real time.Meet the microminiaturization, multifunction, intellectuality of food-safety detecting instrument device and integrated etc. demand for development.
Summary of the invention
The design is for problem and the defective of prior art, purpose is to disclose a kind of portable many indexs impedance biosensor device, it is characterized in that realizing that many indexs are measured simultaneously, in real time demonstration and overload alarm function, use cost is low, easy and simple to handle, accuracy is high.Native system selects the anti-value of optimal resistance as limit value at first according to the measured object of setting, and then utilizes this limit value to choose best impedance value; By voltage amplifier circuit electric signal is amplified; The Single-chip Controlling A/D converter carries out A/D to the signal after amplifying and transforms, and calculates, comparative analysis again, and control afterwards LCD and show and judge whether to transfinite, if transfinite, the control alarm equipment alarm.
Problem and defective for prior art, the objective of the invention is to disclose a kind of portable many indexs impedance biosensor device, feature is to be made of single-chip microcomputer [1], electrical impedance tester [2], amplifying circuit [3], A/D converter [4], keyboard [5], LCD display [6], warning device [7], power supply [8].
Described portable many indexs impedance biosensor device, feature are that the function of single-chip microcomputer [1] control whole system realizes that the impedance value according to electrical impedance tester [2] records draws measured object content; Keyboard [5] input selection detection material kind, the resistance value size that the anti-tester of single-chip microcomputer [1] controlling resistance [2] records obtains suitable resistance value, and faint electric signal is sent into amplifying circuit [3]; Amplifying circuit [3] carries out voltage amplification to ultra-weak electronic signal to be processed, and by single-chip microcomputer [1] control A/D converter [4] simulating signal is carried out the A/D conversion; Single-chip microcomputer [1] calculates, relatively the digital signal that obtains again, directly measured object content is shown in LCD display [6], and according to the comparison of safety value, need to judge whether to report to the police, reported to the police by warning device [7] when needing.
Described portable many indexs impedance biosensor device, feature are the power supplies that power supply [8] circuit is used for whole system, and the assurance whole system is normally moved.
Compared with prior art, the present invention can realize that many indexs detect simultaneously, and at the alarm that transfinites.During food safety detection, there are the problems such as testing process is loaded down with trivial details, the professional skill requirement is high.Easier and universal for the use that makes bio-sensor system, testing result is more accurate, adopts portable many indexs impedance biosensor of the present invention system to overcome the above problems.
Description of drawings
Fig. 1 is systematic schematic diagram
Fig. 2 is working-flow figure
Embodiment
Provide by reference to the accompanying drawings embodiment.
As shown in Figure 1, by STC89C52 single-chip microcomputer [1] control whole system, by the measured object kind of keyboard [5] input, the size of the resistance value that the anti-tester of controlling resistance [2] records, obtain suitable resistance value, the signal of amplifying circuit [3] receives, processes, and A/D converter [4] translation function; Simultaneously, processing is calculated, relatively waited to the digital signal that obtains, show measured object content by LCD display [6], realize overload alarm by warning device [7].
As shown in Figure 2, according to the function of each interface of single-chip microcomputer and the effect of each circuit, can determine the workflow diagram of portable many indexs impedance biosensor device.After keyboard [5] the input measured object, the size of the resistance value that the anti-tester of single-chip microcomputer [1] controlling resistance [2] records obtains suitable resistance value, and Limited Doses is set.Then, follow procedure is controlled respectively the operations such as amplifying circuit [3], A/D converter [4] etc. detect, voltage amplification, A/D conversion; The digital voltage signal that amplifies, change is input to single-chip microcomputer [1], calculates measured object content according to known equation, show measured object kind and content by LCD display [6]; And with Limited Doses relatively, judging whether transfinites, if transfinite, warning device [7] is reported to the police.
The size of the impedance value that is recorded by the anti-tester of single-chip microcomputer [1] controlling resistance [2] realizes that many indexs of different material detect.LCD display [6] is directly exported measured object content, and calculation procedure is finished by a system fully.Warning device [7] in time reminds tester's objectionable impurities to exceed standard, and food is dangerous.Described portable many indexs impedance biosensor device is characterised in that the Function in Order by single-chip microcomputer [1] control modules carries out, and guarantees to detect accurately and reliably.
Compared with prior art, the present invention can realize many indexs whiles, fast detecting, and testing result is shown in real time, but and overload alarm.
Claims (1)
1. portable many indexs impedance biosensor device, feature are to be made of single-chip microcomputer [1], electrical impedance tester [2] amplifying circuit [3], A/D converter [4], keyboard [5], LCD display [6], warning device [7], power supply [8]; Function by described single-chip microcomputer [1] control whole system realizes that the impedance value according to electrical impedance tester [2] records draws measured object content; Keyboard [5] input selection detection material kind, the resistance value size that the anti-tester of single-chip microcomputer [1] controlling resistance [2] records obtains suitable resistance value, and faint electric signal is sent into amplifying circuit [3]; Amplifying circuit [3] carries out voltage amplification to ultra-weak electronic signal to be processed, and by single-chip microcomputer [1] control A/D converter [4] simulating signal is carried out the A/D conversion; Single-chip microcomputer [1] calculates, relatively the digital signal that obtains again, directly measured object content is shown in LCD display [6], and according to the comparison of safety value, need to judge whether to report to the police, reported to the police by warning device [7] when needing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025201 CN203241371U (en) | 2013-01-11 | 2013-01-11 | Portable multi-index impedance biosensor device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025201 CN203241371U (en) | 2013-01-11 | 2013-01-11 | Portable multi-index impedance biosensor device |
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| CN203241371U true CN203241371U (en) | 2013-10-16 |
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| CN 201320025201 Expired - Fee Related CN203241371U (en) | 2013-01-11 | 2013-01-11 | Portable multi-index impedance biosensor device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149244A (en) * | 2013-01-11 | 2013-06-12 | 西北农林科技大学 | Portable multi-index impedence biosensor device |
| CN103558258A (en) * | 2013-11-19 | 2014-02-05 | 山东理工大学 | Antibiotic multiresidue detector based on array sensors |
| CN104849322A (en) * | 2015-04-22 | 2015-08-19 | 中国农业大学 | Impedance biosensor and bio-impedance detection analysis method |
-
2013
- 2013-01-11 CN CN 201320025201 patent/CN203241371U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149244A (en) * | 2013-01-11 | 2013-06-12 | 西北农林科技大学 | Portable multi-index impedence biosensor device |
| CN103558258A (en) * | 2013-11-19 | 2014-02-05 | 山东理工大学 | Antibiotic multiresidue detector based on array sensors |
| CN104849322A (en) * | 2015-04-22 | 2015-08-19 | 中国农业大学 | Impedance biosensor and bio-impedance detection analysis method |
| CN104849322B (en) * | 2015-04-22 | 2017-10-24 | 中国农业大学 | A kind of impedance biosensor and bio-impedance determination method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20140111 |