CN206612796U - One kind is through cave measuring instrument - Google Patents
One kind is through cave measuring instrument Download PDFInfo
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- CN206612796U CN206612796U CN201621358615.2U CN201621358615U CN206612796U CN 206612796 U CN206612796 U CN 206612796U CN 201621358615 U CN201621358615 U CN 201621358615U CN 206612796 U CN206612796 U CN 206612796U
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Abstract
The utility model discloses one kind through cave measuring instrument, including left handle and right handle, the lower end of the left handle and the lower end of right handle are connected by elastic component, the front end of the left handle and right handle is separately installed with the first metal measurement head and the second metal measurement head, power switch button, display screen and resistance zero button are installed on the side wall of the right handle, the inside of the right handle is provided with pre-integration circuit, integrating circuit, adc circuit, processor unit and the digital interface circuit being sequentially connected electrically, and the processor unit is connected with ON-OFF control circuit and power supply unit by electric conductor.The utility model is simple in construction, ingenious in design, easy to use, different according to skin different parts resistance sizes, and resistance is minimum at acupuncture point, using integration method, effectively measures the resistance of two points, and then can find the accurate location at acupuncture point.
Description
Technical field
The utility model is related to field of medical technology, and specially one kind is through cave measuring instrument.
Background technology
Acupuncture point electrometric determination is the characteristic from skin pricktest phenomenal research acupuncture point.One kind is that skin is determined in the case of having impressed current
Skin resistance variations；One kind is, from skin derived current in the case of no impressed current, to determine potential change.Dermatopolyneuritis is determined
It is many to be carried out using through cave analyzer, by some resistance is low and point that electric conduction quantity is higher is referred to as " good to lead a little ", its position is most and cave
Position is consistent.Skin potential is determined, it is found that the higher point of some current potentials and viscera function have certain relation, be referred to as " skin agitation
Point ", its quantity is more compared with acupuncture point, and some points are consistent with acupuncture point.Acupuncture point has the characteristic of low resistance high potential, is ground from skin electrical phenomena
Study carefully the characteristic at acupuncture point.One kind is that dermatopolyneuritis change is determined in the case of having impressed current；One kind is that do not having impressed current feelings
From skin derived current under condition, potential change is determined.Dermatopolyneuritis determines many using through the progress of cave analyzer, and some resistance are low
And the higher point of electric conduction quantity is referred to as " good to lead a little ", its position majority is consistent with acupuncture point.Skin potential determine, find some current potentials compared with
High point has certain relation with viscera function, is referred to as " skin agitation point ", its quantity is more compared with acupuncture point, some points and acupuncture point phase
Symbol.In terms of measurement result, whole skin current potential have from four limbs gradually increase to head and trend that resistance gradually lowers, face is
The position that current potential is higher or resistance is relatively low, but existing Jing and Luo and acupoint treating apparatus do not match through cave measuring instrument, can not when using
The accurate location at acupuncture point is found, in view of the above-mentioned problems, special propose one kind through cave measuring instrument.
Utility model content
The purpose of this utility model is to provide a kind of through cave measuring instrument, with asking for solving to propose in above-mentioned background technology
Topic.
To achieve the above object, the utility model provides following technical scheme：One kind is through cave measuring instrument, including left handle and the right side
Handle, the lower end of the left handle and the lower end of right handle are connected by elastic component, and the front end of the left handle and right handle is separately installed with
Power switch button, display screen and resistance are installed on one metal measurement head and the second metal measurement head, the side wall of the right handle
Be zeroed button, and the inside of the right handle is provided with the pre-integration circuit, integrating circuit, adc circuit, the processor unit that are sequentially connected electrically
And digital interface circuit, the processor unit is connected with ON-OFF control circuit and power supply unit by electric conductor, and switch is controlled
Circuit processed is connected by electric conductor with pre-integration circuit and integrating circuit respectively, and the pre-integration circuit is connected by electric conductor respectively
The first metal measurement head and the second metal measurement head are connected to, the digital interface circuit is connected to display screen by data wire, institute
State ON-OFF control circuit and power switch button and resistance zero button are connected to by electric conductor.
It is preferred that, it is provided with the right side wall of the left handle on range determination bar, and the side wall of range determination bar and is carved with
The second graduation mark is carved with one graduation mark, the side wall of the left handle.
It is preferred that, said supply unit is connected with voltage detection unit by electric conductor.
It is preferred that, the elastic component is in annular shape, and the upper end of annulus is provided with gap.
Compared with prior art, the beneficial effects of the utility model are：One kind is simple in construction through cave measuring instrument, and design is skilful
Wonderful, easy to use, different according to skin different parts resistance sizes, resistance is minimum at acupuncture point, using integration method, effectively measures
The resistance of two points, and then the accurate location at acupuncture point can be found.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is the circuit diagram of the utility model right handle internal electronic element.
In figure：1st, left handle, 2, right handle, 3, elastic component, the 4, first metal measurement head, the 5, second metal measurement head, 6, power supply
Switch key, 7, display screen, 8, resistance zero button, 9, range determination bar, the 10, first graduation mark, the 11, second graduation mark.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：One kind is through cave measuring instrument, including left handle 1 and right handle
2, the lower end of the left handle 1 and the lower end of right handle 2 are connected by elastic component 3, and the front end of the left handle 1 and right handle 2 is respectively mounted
Have and power switch button 6, display are installed on the first metal measurement head 4 and the second metal measurement head 5, the side wall of the right handle 2
Screen 7 and resistance zero button 8, the inside of the right handle 2 are provided with the pre-integration circuit being sequentially connected electrically, integrating circuit, ADC electricity
Road, processor unit and digital interface circuit, the processor unit are connected with ON-OFF control circuit and power supply by electric conductor
Unit, and ON-OFF control circuit is connected by electric conductor with pre-integration circuit and integrating circuit respectively, the pre-integration circuit point
The first metal measurement head 4 and the second metal measurement head 5 are not connected to by electric conductor, the digital interface circuit passes through data wire
Display screen 7 is connected to, the ON-OFF control circuit is connected to power switch button 6 and resistance zero button 8, knot by electric conductor
Structure is simple, ingenious in design, easy to use, different according to skin different parts resistance sizes, and resistance is minimum at acupuncture point, using integration
Method, effectively measures the resistance of two points, and then can find the accurate location at acupuncture point.
Specifically, it is provided with range determination bar 9, and the side wall of range determination bar 9 and carves on the right side wall of the left handle 1
Have and be carved with the second graduation mark 11 on the first graduation mark 10, the side wall of the left handle 1, in that context it may be convenient to which measurement is longitudinal and transverse direction
Distance.
Specifically, said supply unit is connected with voltage detection unit by electric conductor, can be to the electricity of power supply unit
Pressure is detected, prevents overvoltage abnormal work.
Specifically, the elastic component 3 is in annular shape, and the upper end of annulus is provided with gap, can more easily rotate a left side
Handle 1 and right handle 2.
Operation principle：Different according to skin different parts resistance sizes, resistance is minimum at acupuncture point, using integration method, measurement
Circuit specifically includes an integrating circuit U1, analog-to-digital conversion (ADC) circuit U 2, processor unit U3 and ON-OFF control circuit U4.
The current signal Iin of input is converted into voltage signal by the integrating circuit U1, and the adc circuit U2 turns the voltage signal
Data signal and the incoming processor unit U3 are turned to, the processor unit U3 receives the data signal union and drawn
The size of the current signal Iin.The integrating circuit U1 further comprises an operational amplifier A and a feedback network.Institute
Operational amplifier A is stated with an inverting input (-), a normal phase input end (+) and an output end (Vo).To be detected is described
Current signal Iin is inputted from the inverting input, the positive input end grounding.The one termination fortune of the feedback network
Calculate amplifier A inverting input, the output end of another termination operational amplifier A.The operational amplifier A can be chosen Lou
The imported operational amplifiers of the relatively low FET of electric current, the leakage current is less than 1 pico-ampere (pA).The model of the operational amplifier A
AD549.The feedback network includes one first feedback circuit and second feedback circuit in parallel with first feedback circuit.
First feedback circuit includes a feedback resistance Rf and first switch S1 connected with feedback resistance Rf.The feedback resistance
Rf resistance can be 100K Ω to 100M Ω.The resistance of the feedback resistance Rf is 10M Ω.First feedback circuit can be used to survey
Measure the larger weak current of current value.The feedback network may include multiple first feedback circuits in parallel, and the plurality of first is anti-
The resistance value of feedback resistance Rf in current feed circuit is different, so that the measurement of different range ability current signals can be realized.Institute
Stating the second feedback circuit includes an integrating capacitor Ci, second switch S2 and the 3rd switch S3.The integrating capacitor Ci with it is described
Second switch S2 connects, and the integrating capacitor Ci is in parallel with the described 3rd switch S3 after being connected with the second switch S2.It is described
Second switch S2 is used for disconnection and the closure for controlling second feedback circuit.The 3rd switch S3 is used to control the integration electricity
Hold the bleed off of the electric charge accumulated on Ci.The capacitance of the integrating capacitor Ci is 50pF.Second feedback circuit can be used to measure
The relatively small weak current of current value.The measurable electric current less than 10nA of second feedback circuit.The adc circuit U2 is used for will
The voltage signal of the integrating circuit U1 outputs is converted to data signal.Specifically, adc circuit U2 can be to the integrating capacitor
The voltage on integral voltage and feedback resistance Rf accumulated on Ci is acquired and changes into data signal.The adc circuit
It can be realized by an ADC chips.The adc circuit is using 24 ∑-Δ type ADC chips.The ON-OFF control circuit U4 can
For switching first feedback circuit and the second feedback circuit to realize the real-time inspection of the current signal in different range abilities
Survey.Specifically, the ON-OFF control circuit U4 is used for controlling the first switch S1, second switch S2 and the 3rd switchs S3
Closed and disconnected.The first switch S1, second switch S2 and the 3rd switch S3 are the switch of high-insulativity.Described first
Switch S1, the switches of second switch S2 and the 3rd S3 insulaion resistance are not less than 1012 Ω.Further, the current measurement electricity
Road includes a pre-integration circuit U 5, and the pre-integration circuit U 5 can be come during the integrating capacitor Ci bleed off electric charges to input
Current signal Iin be integrated, so as to avoid the dead time that the current measurement circuit exists to current detecting, to reach reality
When detect the input electric current purpose.The pre-integration circuit U 5 includes a pre-integration electric capacity Cp, transmission resistance Rp and the
Four switch S4.One end ground connection of the pre-integration electric capacity Cp, another termination transmission resistance Rp.Described 4th switch S4 one end
The transmission resistance Rp is met, the other end is the output end of the pre-integration circuit U 5, connects the input of the integrating circuit U1, specifically
Ground, connects the inverting input of the operational amplifier A.The capacitance scope of the pre-integration electric capacity Cp is 1pF to 10nF.Described
Four switch S4 are the switch of high-insulativity.The insulaion resistance of the 4th switch S4 is not less than 1012 Ω.The 4th switch S4
Controlled by the ON-OFF control circuit U4.During integrating capacitor Ci bleed off electric charges in the integrating circuit U1, the described 4th
Switch S4 to disconnect, the current signal Iin of input is in the pre-integration electric capacity Cp upper integrals.When the integrating circuit U1 completes electric charge
After bleed off, the 4th switch S4 is closed, and the electric charge accumulated on the pre-integration electric capacity Cp discharges by the transmission resistance Rp,
Integrating circuit U1 is flowed to, is then calculated by the adc circuit U2 and processor unit U3 collections and obtains current signal size,
So as to solve the problem of traditional integrating capacitor method has the dead time.It is appreciated that ought not consider that the integrating circuit U1 rushes down
Caused by electric discharge lotus during the dead time, the pre-integration circuit U 5 is an optional element in the current measurement circuit.When the electricity
When flow measurement circuitry does not include the pre-integration circuit U 5, current signal Iin to be detected is directly inputted to the integrating circuit
In U1, the current signal Iin to be detected is directly inputted by the inverting input of the operational amplifier A.The processing
Device unit U3 is used to control the ON-OFF control circuit U4, reads the data of the adc circuit U2 output ends and handles in real time and obtains
The measurement result for the current signal Iin that must be inputted.The processor unit U3 can be Programmadle logic device, such as microcontroller,
Microprocessor or FPGA.The PLD can be automatically performed the control of measurement and the real-time processing of measurement result, draw
The final measurement of input current, then resistance value is calculated by the electric current of measurement, and then the accurate location at acupuncture point can be found.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. one kind is through cave measuring instrument, including left handle (1) and right handle (2), it is characterised in that：The lower end of the left handle (1) and right handle
(2) lower end is connected by elastic component (3), and the front end of the left handle (1) and right handle (2) is separately installed with the first metal measurement head
(4) power switch button (6), display screen (7) and electricity and the second metal measurement head (5), are installed on the side wall of the right handle (2)
Resistance zero button (8), the inside of the right handle (2) is provided with the pre-integration circuit being sequentially connected electrically, integrating circuit, adc circuit, place
Device unit and digital interface circuit are managed, the processor unit is connected with ON-OFF control circuit and power supply unit by electric conductor,
And ON-OFF control circuit is connected by electric conductor with pre-integration circuit and integrating circuit respectively, the pre-integration circuit passes through respectively
Electric conductor is connected to the first metal measurement head (4) and the second metal measurement head (5), and the digital interface circuit is connected by data wire
Display screen (7) is connected to, the ON-OFF control circuit is connected to power switch button (6) and resistance zero button by electric conductor
(8)。
2. one kind according to claim 1 is through cave measuring instrument, it is characterised in that：Installed on the right side wall of the left handle (1)
Have range determination bar (9), and range determination bar (9), side wall on be carved with the first graduation mark (10), the side wall of the left handle (1)
On be carved with the second graduation mark (11).
3. one kind according to claim 1 is through cave measuring instrument, it is characterised in that：Said supply unit is connected by electric conductor
There is voltage detection unit.
4. one kind according to claim 1 is through cave measuring instrument, it is characterised in that：The elastic component (3) is in circular and round
The upper end of ring is provided with gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621358615.2U CN206612796U (en) | 2016-12-12 | 2016-12-12 | One kind is through cave measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621358615.2U CN206612796U (en) | 2016-12-12 | 2016-12-12 | One kind is through cave measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206612796U true CN206612796U (en) | 2017-11-07 |
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ID=60229363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621358615.2U Active CN206612796U (en) | 2016-12-12 | 2016-12-12 | One kind is through cave measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206612796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110279943A (en) * | 2019-07-29 | 2019-09-27 | 吉林大学 | A kind of limb rehabilitating modality |
-
2016
- 2016-12-12 CN CN201621358615.2U patent/CN206612796U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110279943A (en) * | 2019-07-29 | 2019-09-27 | 吉林大学 | A kind of limb rehabilitating modality |
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