CN211627445U - Trace element detection circuit and trace element analyzer - Google Patents
Trace element detection circuit and trace element analyzer Download PDFInfo
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- CN211627445U CN211627445U CN202020046251.4U CN202020046251U CN211627445U CN 211627445 U CN211627445 U CN 211627445U CN 202020046251 U CN202020046251 U CN 202020046251U CN 211627445 U CN211627445 U CN 211627445U
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Abstract
A trace element detection circuit and a trace element analyzer include: the device comprises a signal receiving component, a function selecting component, a detecting component and a control component; the signal receiving assembly receives the operation signal and converts the operation signal into a driving signal; the function selection component converts the driving signal into a control signal; the detection assembly acquires a detection signal output by the object to be detected after a chemical reaction or a physical reaction according to the control signal; the control component obtains the content of the trace elements according to the detection signals; the embodiment can carry out chemical detection or physical detection on the content of the trace elements so as to be suitable for various objects to be detected and has strong compatibility.
Description
Technical Field
The application belongs to the technical field of electronic circuits, and particularly relates to a trace element detection circuit and a trace element analyzer.
Background
The content of the trace elements is one of important reference indexes of the performance of the object, and technicians can monitor the performance state of the object in real time according to the content of the trace elements, so that the method is simple and efficient, for example, the health state of a human body can be judged in real time according to the content of zinc in blood of the human body; however, when the conventional technology detects trace elements, the detection mode is single, and the trace elements of different types of objects cannot be accurately detected, for example, some trace elements of objects are suitable for a chemical detection mode, and other trace elements of objects are suitable for a physical detection mode, so that each type of object corresponds to a specific trace element detection mode; the traditional technology has low compatibility to the detection mode of the trace elements, and brings great inconvenience to the detection process of the trace elements.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a trace element detection circuit and a trace element analyzer, and aims to solve the problems that the compatibility of the traditional trace element detection mode is low and the inconvenience is brought to the trace element detection process.
A first aspect of an embodiment of the present application provides a trace element detection circuit, including:
a signal receiving component configured to receive an operation signal and convert the operation signal into a driving signal;
a function selection component connected with the signal receiving component and configured to convert the driving signal into a control signal;
the detection component is connected with the function selection component and is configured to acquire a detection signal output by the object to be detected after a chemical reaction or a physical reaction according to the control signal; and
and the control component is connected with the detection component and is configured to obtain the content of the trace elements according to the detection signal.
In one embodiment, the method further comprises:
the key component is connected with the function selection component and is configured to receive a key signal and generate a first function setting signal or a second function setting signal according to the key signal;
the function selection component is used for converting the driving signal into a first control signal according to the first function setting signal or converting the driving signal into a second control signal according to the second function setting signal;
the detection assembly is used for acquiring a detection signal output by the object to be detected after a chemical reaction according to the first control signal or acquiring the detection signal output by the object to be detected after a physical reaction according to the second control signal.
In one embodiment thereof, the detection assembly comprises:
the working electrode is connected with the function selection assembly and is configured to arrange the object to be detected at a preset position according to the first control signal; and
and the dissolution detection component is connected with the working electrode and the control component, is configured to carry out chemical reaction on the object to be detected by adopting a chemical reagent, and collects a detection signal output by the object to be detected after the chemical reaction.
In one embodiment thereof, the control assembly comprises:
the circuit comprises a first control chip, a first diode, a first capacitor, a first resistor and a second resistor;
the anode of the first diode is connected with a first direct-current power supply, the cathode of the first diode and the first end of the first capacitor are connected to the power supply input pin of the first control chip in a sharing mode, and the second end of the first capacitor and the reference power supply input pin of the first control chip are connected to a reference voltage in a sharing mode;
the grounding pin of the first control chip is grounded;
and a first signal input pin of the first control chip is connected with a first end of the first resistor, a second signal input pin of the first control chip is connected with a first end of the second resistor, and a second end of the first resistor and a second end of the second resistor are both connected with the dissolution detection part.
In one embodiment thereof, the detection assembly comprises:
a light source output component connected with the function selection component and configured to output light with a preset wavelength to the object to be detected according to the second control signal; and
and the light splitting detection component is connected with the light source output component and is configured to collect the absorption intensity of the object to be detected to the light source with the preset wavelength.
In one embodiment thereof, the control assembly comprises:
the circuit comprises a second control chip, a third resistor, a fourth resistor, a fifth resistor, a second capacitor, a third capacitor and a fourth capacitor;
a light source detection pin of the second control chip is connected with the light splitting detection component, and a grounding pin of the second control chip is grounded;
the first end of the fifth resistor is connected with a second direct-current power supply;
a second end of the fifth resistor and a first end of the fourth capacitor are connected to a power input pin of the second control chip in common, and a second end of the fourth capacitor is grounded;
the first end of the third resistor and the first communication positive pin of the second control chip are connected to the mobile terminal in a sharing mode, the second end of the third resistor is connected to the first end of the second capacitor, and the second end of the second capacitor and the first communication negative pin of the second control chip are connected to the mobile terminal in a sharing mode.
The second communication positive pin of the second control chip and the first end of the fourth resistor are connected to the mobile terminal in common, the second end of the fourth resistor is connected to the first end of the third capacitor, and the second end of the third capacitor and the second communication negative pin of the second control chip are connected to the mobile terminal in common.
In one embodiment, the method further comprises:
and the signal amplification component is connected between the detection component and the control component and is configured to amplify the detection signal and transmit the amplified detection signal.
In one embodiment thereof, the signal amplification assembly comprises:
the first comparator, the sixth resistor, the seventh resistor, the eighth resistor and the fifth capacitor;
the positive phase input end of the first comparator is connected with the detection component, and the first end of the sixth resistor is grounded;
the first end of the seventh resistor is connected with a reference voltage signal;
the second end of the sixth resistor, the second end of the seventh resistor, the first end of the eighth resistor and the first end of the fifth capacitor are connected to the positive input end of the first comparator in common, and the second end of the eighth resistor, the second end of the fifth capacitor and the output end of the first comparator are connected to the control component in common.
In one embodiment, the function selection component comprises:
the circuit comprises a signal conversion chip, a second comparator, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a sixth capacitor, a second diode and a third diode;
a first end of the ninth resistor and a first end of the tenth resistor are connected to the key assembly in common, and a second end of the ninth resistor is grounded;
an anode of the second diode, a cathode of the third diode and a first end of the eleventh resistor are connected to a second end of the tenth resistor in common, a cathode of the second diode is connected to a third direct-current power supply, and an anode of the third diode is grounded;
a second end of the eleventh resistor, a first end of the twelfth resistor, a first end of the fourteenth resistor, a first end of the sixth capacitor, and a first end of the thirteenth resistor are all connected to a negative-phase input end of the second comparator, a positive-phase input end of the second comparator is grounded, and a second end of the thirteenth resistor is grounded;
the second end of the twelfth resistor is connected with the signal receiving component;
the second end of the fourteenth resistor, the second end of the sixth capacitor and the output end of the second comparator are connected to the communication pin of the signal conversion chip in common, and the signal output pin of the signal conversion chip is connected to the detection component.
A second aspect of an embodiment of the present application provides a trace element analyzer, including: a trace element detection circuit as described above.
Compared with the prior art, the embodiment of the application has the beneficial effects that: the trace element detection circuit carries out chemical detection or physical detection on an object to be detected through the detection assembly, the control assembly accurately collects the content of trace elements according to detection signals output by the object to be detected after chemical reaction or physical reaction, the trace element detection circuit carries out self-adaptive detection on the content of the trace elements of various types of objects to be detected, the compatibility and the flexibility are strong, and great convenience is brought to the trace element detection process.
Drawings
Fig. 1 is a schematic structural diagram of a trace element detection circuit according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of another trace element detection circuit according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a detection assembly according to an embodiment of the present application;
fig. 4 is a schematic circuit diagram of a control module according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of another structure of a detecting assembly according to an embodiment of the present disclosure;
fig. 6 is a schematic circuit diagram of a control module according to an embodiment of the present disclosure;
FIG. 7 is a schematic diagram of another trace element detection circuit according to an embodiment of the present disclosure;
fig. 8 is a schematic circuit diagram of a signal amplifying assembly according to an embodiment of the present disclosure;
fig. 9 is a schematic circuit diagram of a function selecting component according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of a trace element analyzer according to an embodiment of the present application.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The terms "first", "second" and "first" are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Herein, the trace elements include: lead, cadmium, copper, zinc, iron, calcium, magnesium, mercury, manganese and the like.
Fig. 1 is a schematic structural diagram of a trace element detection circuit 10 provided in a preferred embodiment of the present application, in which the trace element detection circuit 10 is coupled to an object 20 to be detected, and the trace element detection circuit 10 performs chemical detection or physical detection on the content of a trace element in the object to be detected; for convenience of explanation, only the parts related to the present embodiment are shown, and detailed as follows:
the trace element detection circuit 10 includes: a signal receiving component 101, a function selecting component 102, a detecting component 103 and a control component 104.
The signal receiving component 101 is configured to receive an operation signal and convert the operation signal into a driving signal.
Optionally, the operation signal is from a user or an electronic device, the signal receiving component 101 performs signal format conversion on the operation signal, and a detection process for the trace element can be started based on the driving signal.
The function selecting component 102 is connected to the signal receiving component 101 and configured to convert the driving signal into a control signal.
Optionally, the function selection component 102 identifies the type of the object to be detected, for example, the object to be detected belongs to human tissue or a metal material; the function selection component 102 converts the driving signal into a control signal according to the type of the object to be detected, and can perform self-adaptive detection on the content of the trace elements according to the control signal.
The detection component 103 is connected to the function selection component 102, and is configured to acquire a detection signal output by the object 20 to be detected after undergoing a chemical reaction or a physical reaction according to the control signal.
The detection component 103 is coupled with the object 20 to be detected, and after the object 20 to be detected undergoes a chemical reaction or a physical reaction, the internal element composition information of the object 20 to be detected can be acquired in real time, and a detection signal is formed; the detection component 103 selects a chemical detection mode or a physical detection mode according to the type of the object 20 to be detected, and the content of the trace elements can be accurately acquired through detection signals.
The control component 104 is connected with the detection component 103 and configured to obtain the content of the trace element according to the detection signal.
When the detection assembly 103 outputs the detection signal to the control assembly 104, the control assembly 104 collects the content detection result of the trace element according to the detection signal, so as to complete the chemical detection process or the physical detection process of the trace element.
Optionally, the control component 104 is connected to the mobile terminal, the control component 104 is further configured to output a content detection result of the trace element to the mobile terminal, the mobile terminal displays the content detection result, and the user acquires the content detection result in real time through the mobile terminal, so that good use experience is brought to the user.
As an alternative implementation, fig. 2 shows another structural schematic of the trace element detection circuit 10 provided in this embodiment, and compared with the structural schematic of the trace element detection circuit 10 in fig. 1, the trace element detection circuit 10 in fig. 2 further includes: and the key assembly 105, the key assembly 105 is connected with the function selection assembly 102, and is configured to receive the key signal and generate a first function setting signal or a second function setting signal according to the key signal.
The function selecting component 102 is configured to convert the driving signal into a first control signal according to a first function setting signal, or convert the driving signal into a second control signal according to a second function setting signal.
The detection component 103 is configured to collect a detection signal output by the object 20 to be detected after a chemical reaction according to the first control signal, or collect a detection signal output by the object 20 to be detected after a physical reaction according to the second control signal.
Optionally, the key signal is from a user, and the user can select a chemical detection mode or a physical detection mode of the trace element through the key signal, so that the operation is convenient.
In this embodiment, the control signal includes: a first control signal and a second control signal; the key signal includes element detection requirement information, and when the key assembly 105 outputs a first function setting signal, a chemical detection process of the object 20 to be detected is started; when the key assembly 105 outputs a second function setting signal, starting a physical detection process of the object 20 to be detected; the detection process of the trace elements can be adjusted in real time according to the key assembly 105; the detection component 103 can accurately detect the content of the trace elements of various types of objects 20 to be detected, and has high flexibility.
As an alternative embodiment, when the trace elements are chemically detected according to the first control signal, the content of the trace elements is collected after the trace elements are subjected to a chemical reaction; referring to fig. 3, fig. 3 shows a schematic structure of the detecting assembly 103 provided in the present embodiment, where the detecting assembly 103 includes: a working electrode 1031 and a dissolution detection section 1032; the working electrode 1031 is connected to the function selection component 102 and configured to electrolyze the object to be detected 20 according to the first control signal.
The working electrode 1031 has good conductivity, the working electrode 1031 performs electrolysis according to the first control signal, trace elements in the object 20 to be detected are pre-electrolyzed and enriched at a constant potential, and the trace elements are enriched on the working electrode 1031, so that the chemical reaction rate of the object 20 to be detected is improved.
The dissolution testing part 1032 is connected to the working electrode 1031 and the control module 104, and is configured to perform oxidation or reduction on the electrolyzed object to be tested by using a chemical reagent, and collect a testing signal output by the object to be tested after oxidation or reduction.
The internal molecular structure composition of the object 20 to be detected can be analyzed after the object 20 to be detected is oxidized or reduced; exemplarily, the object 20 to be detected is placed in a liquid to obtain a solution to be detected, the working electrode 1031 is placed in the solution to be detected, the solution to be detected is electrolyzed, the trace elements are dissolved out by utilizing the oxidation or reduction action of a chemical reagent, the ratio of the mass of the trace elements to the mass of the solution to be detected is recorded, and the quantitative analysis is carried out by utilizing the proportional relation between the time and the concentration of the trace elements; the following chemical detection process of mercury (Hg) and manganese (Mn) is taken as an example, and can be divided into two steps:
A. enrichment Process (constant potential Pre-electrolysis)
Hg(Ⅱ)+2e→Hg Mn++ne→M(Hg)；
B. Dissolution process (breaking potentiostatic potential, oxidation or reduction dissolution)
M(Hg)+Hg(Ⅱ)→Mn++2Hg+ne
After the chemical detection is performed on the object to be detected by combining the working electrode 1031 and the dissolution detecting part 1032, the detection signal is output to the control unit 104, thereby realizing the chemical detection process of the trace elements.
As an alternative implementation, fig. 4 shows a schematic circuit structure of the control component 104 provided in this embodiment, please refer to fig. 4, where the control component 104 includes: the circuit comprises a first control chip U1, a first diode D1, a first capacitor C1, a first resistor R1 and a second resistor R2.
The anode of the first diode D1 is connected with a first direct current power supply, and optionally, the first direct current power supply is a 3V-10V direct current power supply; a cathode of the first diode D1 and a first end of the first capacitor C1 are connected to a power supply input pin of the first control chip U1 in a sharing mode, and a second end of the first capacitor C1 and a reference power supply input pin of the first control chip U1 are connected to a reference voltage in a sharing mode; as shown in FIG. 4, the power input pin of the first control chip U1 is the 8 th pin, and the reference power input pin of the first control chip U1 is the 6 th pin.
The grounding pin of the first control chip U1 is grounded GND; as shown in fig. 4, the ground pin of the first control chip U1 is the 4 th pin.
The first signal input pin of the first control chip U1 is connected to the first end of the first resistor R1, the second signal input pin of the first control chip U1 is connected to the first end of the second resistor R2, and the second end of the first resistor R1 and the second end of the second resistor R2 are both connected to the dissolution detector 1032.
The signal output pin of the first control chip U1 is used for outputting the detection result of the content of the trace element.
As shown in FIG. 4, the first signal input pin of the first control chip U1 is the 7 th pin, the second signal input pin of the first control chip U1 is the 8 th pin, and the signal output pin of the first control chip U1 is the 2 nd pin.
Optionally, the first control chip U1 is: AT89C series single chip processor chip; after the object 20 to be detected is subjected to chemical reaction, a detection signal is obtained; the first control chip U1 resolves the actual content of the trace elements according to the detection signal.
As an optional implementation manner, the trace elements are physically detected according to the second control signal, and the content of the trace elements in the object 20 to be detected is acquired through a physical detection manner; fig. 5 shows another structural schematic of the detecting assembly 103 provided in the present embodiment, and as shown in fig. 5, the detecting assembly 103 includes: a light source output section 501 and a spectroscopic detection section 502; the light source output part 501 is connected to the function selection member 102, and configured to output light of a preset wavelength to the object 20 to be detected according to the second control signal.
The light source output part 501 emits light of a preset wavelength according to the second control signal; each trace element has specific absorption intensity to light with preset wavelength; and acquiring the internal molecular structure information of the object to be detected by utilizing the absorption characteristic of the trace elements to light.
The light splitting detection part 502 is connected to the light source output part 501, and is configured to collect the absorption intensity of the object 20 to be detected for light with a preset wavelength.
The light splitting detection component 502 can determine the absorption intensity of the object 20 to be detected to the light with the preset wavelength to form a detection signal, and can obtain the content of the trace elements in the object 20 to be detected according to the detection signal to complete the physical detection process of the content of the trace elements.
As an alternative implementation, fig. 6 shows another schematic circuit structure of the control component 104 provided in this embodiment, please refer to fig. 6, where the control component 104 includes: the circuit comprises a second control chip U2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a second capacitor C2, a third capacitor C3 and a fourth capacitor C4.
The light source detection pin of the second control chip U2 is connected with the light splitting detection component 502, and the grounding pin of the second control chip U2 is grounded GND; as shown in fig. 6, the light source detection pin of the second control chip U2 includes: the 1 st pin, the 2 nd pin, the 3 rd pin, the 4 th pin and the 21 st pin.
The first end of the fifth resistor R5 is connected with a second direct current power supply; optionally, the second dc power supply is a 1V-20V dc power supply.
The second end of the fifth resistor R5 and the first end of the fourth capacitor C4 are connected to the power input pin of the second control chip U2 in common, and the second end of the fourth capacitor C4 is connected to the ground GND; as shown in fig. 6, the power input pin of the second control chip U2 is the 5 th pin.
A first end of the third resistor R3 and a first communication positive pin of the second control chip U2 are connected to the mobile terminal in a common mode, a second end of the third resistor R3 is connected to a first end of the second capacitor C2, and a second end of the second capacitor C2 and a first communication negative pin of the second control chip U2 are connected to the mobile terminal in a common mode; as shown in FIG. 6, the first communication positive pin of the second control chip U2 is the 12 th pin, and the first communication negative pin of the second control chip U2 is the 9 th pin.
A second communication positive pin of the second control chip U2 and a first end of a fourth resistor R4 are connected to the mobile terminal in a sharing mode, a second end of the fourth resistor R4 is connected to a first end of a third capacitor C3, and a second end of the third capacitor C3 and a second communication negative pin of the second control chip U2 are connected to the mobile terminal in a sharing mode; as shown in fig. 6, the second communication positive pin of the second control chip U2 is the 16 th pin, and the second communication negative pin of the second control chip U2 is the 13 th pin.
Exemplarily, the second control chip U2 is an STM32 series single chip microcomputer chip, and after the detection module 103 collects the absorption intensity of the light with the preset wavelength from the object 20 to be detected, the second control chip U2 collects the content of the trace elements according to the detection signal, and the second control chip U2 outputs the content detection result of the trace elements to the mobile terminal, so that the user can collect the content of the trace elements in real time through the mobile terminal, and the physical detection process of the trace elements has higher convenience.
As an alternative implementation, fig. 7 shows another structural schematic of the trace element detection circuit 10 provided in this embodiment, and compared with the structural schematic of the trace element detection circuit 10 in fig. 1, the trace element detection circuit 10 in fig. 7 further includes: and the signal amplification component 106, wherein the signal amplification component 106 is connected between the detection component 103 and the control component 104, and is configured to amplify and transmit the detection signal.
The detection signal is amplified through the signal amplification component 106, so that the distortion of the detection signal in the transmission process can be avoided; the control component 104 obtains the content of the trace elements according to the amplified detection signal, and the detection precision of the content of the trace elements is improved.
As an alternative implementation, fig. 8 shows a schematic circuit structure of the signal amplifying assembly 106 provided in this embodiment, please refer to fig. 8, where the signal amplifying assembly 106 includes: the circuit comprises a first comparator Cmp1, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8 and a fifth capacitor C5.
The non-inverting input of the first comparator Cmp1 is connected to the detection component 103, and the first end of the sixth resistor R6 is connected to the ground GND.
The first terminal of the seventh resistor R7 is coupled to the reference voltage signal.
The second end of the sixth resistor R6, the second end of the seventh resistor R7, the first end of the eighth resistor R8, and the first end of the fifth capacitor C5 are commonly connected to the non-inverting input terminal of the first comparator Cmp1, and the second end of the eighth resistor R8, the second end of the fifth capacitor C5, and the output terminal of the first comparator Cmp1 are commonly connected to the control component 104.
The signal amplification component 106 of the present embodiment can ensure the transmission accuracy of the detection signal.
As an alternative implementation, fig. 9 shows a schematic circuit structure of the function selecting component 102 provided in this embodiment, please refer to fig. 9, where the function selecting component 102 includes: the signal conversion chip U2, the second comparator Cmp2, the ninth resistor R9, the tenth resistor R10, the eleventh resistor R11, the twelfth resistor R12, the thirteenth resistor R13, the fourteenth resistor R14, the sixth capacitor C6, the second diode D2 and the third diode D3.
A first end of the ninth resistor R9 and a first end of the tenth resistor R10 are commonly connected to the key assembly 105, and a second end of the ninth resistor R9 is grounded to GND.
An anode of the second diode D2, a cathode of the third diode D3, and a first end of the eleventh resistor R11 are commonly connected to a second end of the tenth resistor R10, a cathode of the second diode D2 is connected to the third dc power supply, and an anode of the third diode D3 is grounded to GND; optionally, the third dc power supply is a 1V to 10V dc power supply.
The second end of the eleventh resistor R11, the first end of the twelfth resistor R12, the first end of the fourteenth resistor R14, the first end of the sixth capacitor C6 and the first end of the thirteenth resistor R13 are commonly connected to the negative input terminal of the second comparator Cmp2, the positive input terminal of the second comparator Cmp2 is grounded to GND, and the second end of the thirteenth resistor R13 is grounded to GND.
The second end of the twelfth resistor R12 is connected to the signal receiving element 101.
A second end of the fourteenth resistor R14, a second end of the sixth capacitor C6 and an output end of the second comparator Cmp2 are commonly connected to a communication pin of the signal conversion chip U3, and a signal output pin of the signal conversion chip U3 is connected to the detection component 103; as shown in FIG. 9, the communication pin of the signal conversion chip U3 is the 1 st pin, and the signal output pin of the signal conversion chip U3 is the 7 th pin.
When the key assembly 105 outputs a first function setting signal or a second function setting signal according to the key signal, the signal conversion chip U2 performs adaptive conversion on the driving signal, and then performs chemical detection or physical detection on the object to be detected; illustratively, the signal conversion chip U2 has a model number: the AD7810 or CS5513 performs analog-to-digital conversion on the driving signal through the signal conversion chip U2, the control signal is a digital quantity, and the detection module 103 is digitally controlled according to the control signal.
Fig. 10 shows a schematic structure of a trace element analyzer 100 provided in this embodiment, and referring to fig. 10, the trace element analyzer 100 includes the trace element detection circuit 10 as described above; with the embodiment of fig. 1 to 9, the trace element detection circuit 10 is compatible with a chemical detection mode and a physical detection mode, and detects trace elements in real time according to the type of an object to be detected, so that the detection precision is high, and the operation is convenient; the problem of the traditional technology to the compatibility of microelement's detection mode lower is solved.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A trace element detection circuit, comprising:
a signal receiving component configured to receive an operation signal and convert the operation signal into a driving signal;
a function selection component connected with the signal receiving component and configured to convert the driving signal into a control signal;
the detection component is connected with the function selection component and is configured to acquire a detection signal output by the object to be detected after a chemical reaction or a physical reaction according to the control signal; and
and the control component is connected with the detection component and is configured to obtain the content of the trace elements according to the detection signal.
2. The trace element detection circuit according to claim 1, further comprising:
the key component is connected with the function selection component and is configured to receive a key signal and generate a first function setting signal or a second function setting signal according to the key signal;
the function selection component is used for converting the driving signal into a first control signal according to the first function setting signal or converting the driving signal into a second control signal according to the second function setting signal;
the detection assembly is used for acquiring a detection signal output by the object to be detected after a chemical reaction according to the first control signal or acquiring the detection signal output by the object to be detected after a physical reaction according to the second control signal.
3. A trace element detection circuit according to claim 2, wherein the detection assembly comprises:
the working electrode is connected with the function selection assembly and is configured to electrolyze the object to be detected according to the first control signal; and
the dissolution detection component is connected with the working electrode and the control component, and is configured to oxidize or reduce the electrolyzed object to be detected by adopting a chemical reagent and collect a detection signal output by the object to be detected after oxidation or reduction.
4. A trace element detection circuit according to claim 3, wherein the control assembly comprises:
the circuit comprises a first control chip, a first diode, a first capacitor, a first resistor and a second resistor;
the anode of the first diode is connected with a first direct-current power supply, the cathode of the first diode and the first end of the first capacitor are connected to the power supply input pin of the first control chip in a sharing mode, and the second end of the first capacitor and the reference power supply input pin of the first control chip are connected to a reference voltage in a sharing mode;
the grounding pin of the first control chip is grounded;
and a first signal input pin of the first control chip is connected with a first end of the first resistor, a second signal input pin of the first control chip is connected with a first end of the second resistor, and a second end of the first resistor and a second end of the second resistor are both connected with the dissolution detection part.
5. A trace element detection circuit according to claim 2, wherein the detection assembly comprises:
a light source output component connected with the function selection component and configured to output light with a preset wavelength to the object to be detected according to the second control signal; and
and the light splitting detection component is connected with the light source output component and is configured to collect the absorption intensity of the object to be detected to light with a preset wavelength.
6. The trace element detection circuit according to claim 5, wherein the control assembly comprises:
the circuit comprises a second control chip, a third resistor, a fourth resistor, a fifth resistor, a second capacitor, a third capacitor and a fourth capacitor;
a light source detection pin of the second control chip is connected with the light splitting detection component, and a grounding pin of the second control chip is grounded;
the first end of the fifth resistor is connected with a second direct-current power supply;
a second end of the fifth resistor and a first end of the fourth capacitor are connected to a power input pin of the second control chip in common, and a second end of the fourth capacitor is grounded;
a first end of the third resistor and a first communication positive pin of the second control chip are connected to a mobile terminal in common, a second end of the third resistor is connected to a first end of the second capacitor, and a second end of the second capacitor and a first communication negative pin of the second control chip are connected to the mobile terminal in common;
the second communication positive pin of the second control chip and the first end of the fourth resistor are connected to the mobile terminal in common, the second end of the fourth resistor is connected to the first end of the third capacitor, and the second end of the third capacitor and the second communication negative pin of the second control chip are connected to the mobile terminal in common.
7. The trace element detection circuit according to claim 1, further comprising:
and the signal amplification component is connected between the detection component and the control component and is configured to amplify the detection signal and transmit the amplified detection signal.
8. The trace element detection circuit according to claim 7, wherein the signal amplification assembly comprises:
the first comparator, the sixth resistor, the seventh resistor, the eighth resistor and the fifth capacitor;
the positive phase input end of the first comparator is connected with the detection component, and the first end of the sixth resistor is grounded;
the first end of the seventh resistor is connected with a reference voltage signal;
the second end of the sixth resistor, the second end of the seventh resistor, the first end of the eighth resistor and the first end of the fifth capacitor are connected to the positive input end of the first comparator in common, and the second end of the eighth resistor, the second end of the fifth capacitor and the output end of the first comparator are connected to the control component in common.
9. The trace element detection circuit according to claim 2, wherein the function selection component comprises:
the circuit comprises a signal conversion chip, a second comparator, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a sixth capacitor, a second diode and a third diode;
a first end of the ninth resistor and a first end of the tenth resistor are connected to the key assembly in common, and a second end of the ninth resistor is grounded;
an anode of the second diode, a cathode of the third diode and a first end of the eleventh resistor are connected to a second end of the tenth resistor in common, a cathode of the second diode is connected to a third direct-current power supply, and an anode of the third diode is grounded;
a second end of the eleventh resistor, a first end of the twelfth resistor, a first end of the fourteenth resistor, a first end of the sixth capacitor, and a first end of the thirteenth resistor are all connected to a negative-phase input end of the second comparator, a positive-phase input end of the second comparator is grounded, and a second end of the thirteenth resistor is grounded;
the second end of the twelfth resistor is connected with the signal receiving component;
the second end of the fourteenth resistor, the second end of the sixth capacitor and the output end of the second comparator are connected to the communication pin of the signal conversion chip in common, and the signal output pin of the signal conversion chip is connected to the detection component.
10. A trace element analyzer, comprising: a trace element detection circuit as claimed in any one of claims 1 to 9.
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