CN208060731U - Novel high-end holds dangerous liquid detector - Google Patents
Novel high-end holds dangerous liquid detector Download PDFInfo
- Publication number
- CN208060731U CN208060731U CN201721589317.9U CN201721589317U CN208060731U CN 208060731 U CN208060731 U CN 208060731U CN 201721589317 U CN201721589317 U CN 201721589317U CN 208060731 U CN208060731 U CN 208060731U
- Authority
- CN
- China
- Prior art keywords
- resistance
- capacitance
- chip
- circuit
- rectifying tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Emergency Alarm Devices (AREA)
Abstract
A kind of hand-held dangerous liquid detector of Novel high-end involved by the utility model, including central processing unit control panel, OLED display boards;It is connect because central processing unit control panel receives capacitor board with OLED display boards by transmitting;It includes MCU signal processing circuits, CDC conversion circuits, input signal that transmitting, which receives capacitor board,;Central processing unit control panel includes digital voltage regulator, lithium battery, lithium battery charging circuit, communicating circuit, the ends PC;OLED display boards include sound light alarming circuit, OLED display circuits, sound light alarming circuit is connected in parallel with OLED display circuits, and constitute technical solution, the technical solution constitutes capacitance number conversion chip technology to complete the action of detection material using MCU signal processing circuits and CDC conversion circuits, corresponding dielectric constant is calculated by capacitance number conversion chip, judges whether liquid is contraband.To achieve the effect that detection process is rapid, radiationless.The utility model also has small and cheap effect.
Description
【Technical field】
It is especially a kind of in terms of based on Quasi-static capacitance chromatographic technique the utility model is related to a kind of detection device
Novel high-end holds dangerous liquid detector.
【Background technology】
In the prior art, there are different testing principles, most of detector one for detecting the detector of dangerous liquid
As use Static X-Ray layer scanning technology, microwave irradiation technology, Raman spectroscopy, gas chromatographic technique etc. plus difference
Hardware device and complete detection work.In the detector of detection, due to penetrating technology using X, microwave technology constitutes, is easy to lead
Operator is caused to bring certain radiation hazradial bundle in detection process to passenger, analysis time is long, and volume is big, and Costco Wholesale height etc. is existing
As.
【Utility model content】
In view of this, a kind of the technical problem to be solved by the utility model is to provide detection process rapid, radiationless, body
The small and cheap Novel high-end of product holds dangerous liquid detector.
Above-mentioned technical problem is solved thus, and the technical solution in the utility model uses a kind of hand-held danger of Novel high-end
Detector liquid comprising central processing unit control panel, OLED display boards;The central processing unit control panel and OLED display boards
Capacitor board connection is received by transmitting;It includes MCU signal processing circuits that the transmitting, which receives capacitor board, is bidirectionally coupled to MCU
CDC conversion circuits in signal processing circuit, the input signal being connected on CDC conversion circuits;The central processing unit control
Plate includes the digital voltage regulator being connected in MCU signal processing circuits and CDC conversion circuits, is connected to digital voltage stabilizing electricity
The lithium battery of road, the lithium battery charging circuit being connected on lithium battery, the communication electricity being connected in MCU signal processing circuits
Road is connected to the ends PC on communicating circuit;OLED display boards include the sound-light alarm electricity being connected in MCU signal processing circuits
Road, the OLED display circuits being connected in MCU signal processing circuits, the sound light alarming circuit is in parallel with OLED display circuits to be connected
It connects.
Described in above-mentioned technical characteristics;The MCU signal processing circuits include chip U1, are connected to chip U1
On resistance R15;Vibrator Y2 is connected to the capacitance C7 and capacitance C8 at the both ends vibrator Y2.
Described in above-mentioned technical characteristics;The communicating circuit includes chip U4, the electricity being connected on chip U4
Hold C10.
Described in above-mentioned technical characteristics;The digital voltage regulator includes chip U3, is connected on chip U3
Capacitance C2, the capacitance C3 being connected on chip U3, capacitance C4, rectifying tube D0, resistance R6, the capacitance C3 and capacitance
C4 is connected in parallel, and after the rectifying tube D0 and resistance R6 is connected in series with, is connected in capacitance C3 and the both ends capacitance C4 in parallel;Even
It is connected to resistance R1 on chip U3, rectifying tube D1, rectifying tube D2, rectifying tube D3, the resistance R1 are connected in parallel on chip U3,
The rectifying tube D1, rectifying tube D2, rectifying tube D3 is parallel with one another to form rectifying tube group together, and the rectifying tube group and resistance R1 are simultaneously
Connection is connected to chip U3;Further include resistance R29, resistance R30.
Described in above-mentioned technical characteristics;The lithium battery charging circuit includes chip U2, is connected to chip U2
On resistance R4, the capacitance C1 being connected in parallel on chip U2, the contact head P1 being connected on chip U2, contact head P4.
Described in above-mentioned technical characteristics;The OLED display circuits include OLED module, are connected to OLED moulds
Capacitance C5 on block;Rectifying tube D4, resistance R24, the rectifying tube D4 and resistance R24 are connected in series with;Switch KEY, resistance
R7, resistance R8 after the resistance R7 is in parallel with resistance R8, are connected to the one end switch KEY.
Described in above-mentioned technical characteristics;The CDC conversion circuits include chip U5, are connected on chip U5
Resistance R40, resistance R39, resistance R38;Resistance R40, resistance R39, resistance R38 are series at respectively on chip U5;It further include capacitance
C11, capacitance C6, contact head J2, what the capacitance C6 was connect with capacitance C11.
Described in above-mentioned technical characteristics;The sound light alarming circuit includes red colored lamp alarm group circuit, yellow
Lamp alarm group circuit, green light alarm group circuit, audible alarm group circuit;The red colored lamp alarm group circuit includes triode
Q1, the resistance R17 being connected in triode Q1 base stages, resistance R25, resistance R17 are connected in parallel with resistance R25;It is connected to three poles
Resistance R26 on pipe Q1 collectors, the rectifying tube D5 being connected on the resistance R26 other ends;The amber light alarm group circuit
Including triode Q2, the resistance R19 being connected in triode Q2 base stages, resistance R20, resistance R19 is connected in parallel with resistance R20;
The resistance R2 being connected on triode Q2 collectors, the rectifying tube D6 being connected on the resistance R2 other ends;The green light report
Alert group circuit includes triode Q3, and the resistance R22 being connected in triode Q3 base stages, resistance R35, resistance R22 and resistance R35 is simultaneously
Connection connection;The resistance R36 being connected on triode Q3 collectors, the rectifying tube D7 being connected on the resistance R36 other ends;Sound report
Alert group circuit includes triode Q4, the resistance R23 being connected in triode Q4 base stages, resistance R28, resistance R23 and resistance R28
It is connected in parallel;The loudspeaker LS1 being connected on triode Q4 collectors;Further include resistance R31, resistance R32, resistance R8, switch K1,
Switch K2, switch K3;The resistance R31 and switch K1 is connected in series with;The resistance R32 and switch K2 is connected in series with;Institute
The resistance R8 stated and switch K3 is connected in series with.
The advantageous effects of the utility model:Because the central processing unit control panel is connect with OLED display boards by transmitting
Receive capacitor board connection;It includes MCU signal processing circuits that the transmitting, which receives capacitor board, is bidirectionally coupled to MCU signal processing electricity
The CDC conversion circuits of road, the input signal being connected on CDC conversion circuits;The central processing unit control panel includes difference
The digital voltage regulator being connected in MCU signal processing circuits and CDC conversion circuits, the lithium electricity being connected on digital voltage regulator
Pond, the lithium battery charging circuit being connected on lithium battery, the communicating circuit being connected in MCU signal processing circuits are connected to logical
Interrogate the ends PC on circuit;OLED display boards include the sound light alarming circuit being connected in MCU signal processing circuits, are connected to MCU
OLED display circuits in signal processing circuit, the sound light alarming circuit is connected in parallel with OLED display circuits, and constitutes skill
Art scheme, the technical solution constitute capacitance number conversion chip technology come complete using MCU signal processing circuits and CDC conversion circuits
At the action of detection material, corresponding dielectric constant is calculated by capacitance number conversion chip, judges whether liquid is violated
Product.It is rapid radiationless in detecting to achieve the effect that.It is compared to each other with prior art similar product, the utility model
Also have the effect of small and cheap.
With reference to the accompanying drawings and examples, the technical solution of the utility model is described in further detail.
【Description of the drawings】
Fig. 1 is the frame principle figure that Novel high-end holds dangerous liquid detector in the utility model;
Fig. 2 is the schematic diagram of MCU signal processing circuits in the utility model;
Fig. 3 is the schematic diagram of digital voltage regulator in the utility model;
Fig. 4 is the schematic diagram of communicating circuit in the utility model;
Fig. 5 is the schematic diagram of OLED display circuits in the utility model;
Fig. 6 is partial circuit in the principle of the hand-held dangerous liquid detector of Novel high-end in the utility model;
Fig. 7 is the circuit diagram that lithium battery charges in the utility model;
Fig. 8 is one circuit diagram divided in the middle part of CDC conversion circuits in the utility model;
Fig. 9 is two circuit diagram divided in the middle part of CDC conversion circuits in the utility model;
Figure 10 is one circuit diagram divided in the middle part of sound light alarming circuit in the utility model;
Figure 11 is two circuit diagram divided in the middle part of sound light alarming circuit in the utility model.
【Specific implementation mode】
In order to keep technical problem to be solved in the utility model, technical solution and advantageous effect clearer, clear, with
Under in conjunction with the accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
Example is applied only to explain the utility model, is not used to limit the utility model.
It please refers to Fig.1 to shown in Figure 11, illustrates that a kind of Novel high-end holds dangerous liquid detector with reference to embodiment,
It includes central processing unit control panel, and OLED display boards and transmitting receive capacitor board, the central processing unit control panel with
OLED display boards receive capacitor board connection by transmitting.
It includes MCU signal processing circuits that the transmitting, which receives capacitor board, is bidirectionally coupled in MCU signal processing circuits
CDC conversion circuits, the input signal being connected on CDC conversion circuits.The MCU signal processing circuits include chip U1, even
The resistance R15 being connected on chip U1;Vibrator Y2 is connected to the capacitance C7 and capacitance C8 at the both ends vibrator Y2.The CDC turns
It includes chip U5 to change circuit, the resistance R40 being connected on chip U5, resistance R39, resistance R38;Resistance R40, resistance R39, electricity
Resistance R38 is series at respectively on chip U5;Further include capacitance C11, capacitance C6, contact head J2, the capacitance C11 connect with capacitance C6
It connects.
The central processing unit control panel includes the number being connected in MCU signal processing circuits and CDC conversion circuits
Word regulator circuit, the lithium battery being connected on digital voltage regulator, the lithium battery charging circuit being connected on lithium battery are connected to
Communicating circuit in MCU signal processing circuits is connected to the ends PC on communicating circuit.
The digital voltage regulator includes chip U3, and the capacitance C2 being connected on chip U3 is connected to chip U3
On capacitance C3, capacitance C4, rectifying tube D0, resistance R6, the capacitance C3 and capacitance C4 be connected in parallel, the rectifying tube
After D0 and resistance R6 is connected in series with, it is connected in capacitance C3 and the both ends capacitance C4 in parallel;It is connected to resistance R1, rectification on chip U3
Pipe D1, rectifying tube D2, rectifying tube D3, the resistance R1 are connected in parallel on chip U3, the rectifying tube D1, rectifying tube
D2, rectifying tube D3 are parallel with one another to form rectifying tube group together, which is connected in chip U3 in parallel with resistance R1;Also wrap
Include resistance R29, resistance R30.The lithium battery charging circuit includes chip U2, the resistance R4 being connected on chip U2, in parallel
The capacitance C1 being connected on chip U2, the contact head P1 being connected on chip U2, contact head P4.The communicating circuit includes core
Piece U4, the capacitance C10 being connected on chip U4.
OLED display boards include the sound light alarming circuit being connected in MCU signal processing circuits, are connected at MCU signals
The OLED display circuits on circuit are managed, the sound light alarming circuit is connected in parallel with OLED display circuits.The OLED is shown
Circuit includes OLED module, the capacitance C5 being connected in OLED module;Rectifying tube D4, resistance R24, the rectifying tube D4 and electricity
Resistance R24 is connected in series with;Switch KEY, resistance R7, resistance R8 are connected to switch after the resistance R7 is in parallel with resistance R8
The one end KEY.The sound light alarming circuit includes red colored lamp alarm group circuit, amber light alarm group circuit, green light alarm group
Circuit, audible alarm group circuit;The red colored lamp alarm group circuit includes triode Q1, is connected in triode Q1 base stages
Resistance R17, resistance R25, resistance R17 are connected in parallel with resistance R25;The resistance R26 being connected on triode Q1 collectors,
The rectifying tube D5 being connected on the resistance R26 other ends;The amber light alarm group circuit includes triode Q2, is connected to three poles
Resistance R19 in pipe Q2 base stages, resistance R20, resistance R19 are connected in parallel with resistance R20;It is connected on triode Q2 collectors
Resistance R2, the rectifying tube D6 being connected on the resistance R2 other ends;The green light alarm group circuit includes triode Q3, connection
Resistance R22 in triode Q3 base stages, resistance R35, resistance R22 are connected in parallel with resistance R35;It is connected to triode Q3 current collections
Resistance R36 on extremely, the rectifying tube D7 being connected on the resistance R36 other ends;Audible alarm group circuit includes triode Q4, connection
Resistance R23 in triode Q4 base stages, resistance R28, resistance R23 are connected in parallel with resistance R28;It is connected to triode Q4 current collections
Loudspeaker LS1 on extremely;Further include resistance R31, resistance R32, resistance R8, switch K1, switch K2, switch K3;The resistance R31
It is connected in series with switch K1;The resistance R32 and switch K2 is connected in series with;The resistance R8 and switch K3 is connected in series with.
The ends the PC input terminal is connect with communicating circuit output end, at the communicating circuit input terminal and MCU signals
Circuit output end connection is managed, the sound light alarming circuit and OLED display circuits are connect with MCU signal processing circuits respectively,
The CDC conversion circuits are connect with MCU signal processing circuits by bidirectional data line, and the input signal is converted with CDC
Circuit connect, the digital voltage regulator respectively with CDC conversion circuits and MCU signal processing circuits, the lithium battery with
Digital voltage regulator connects, and the lithium battery charging circuit is connect with lithium battery.
Technical solution described in the present embodiment is to be based on direct capacitance chromatographic technique, is converted using a chip capacitor number
(CDC) chip completes capacitance detecting, and converting (CDC) chip operation by capacitance number calculates corresponding dielectric constant, to
Judge whether liquid is contraband.Checking process is rapid, radiationless, small product size is small, cheaply, hand-holdable carrying.Transmitting receives
Capacitor board is connect with central processing unit control panel, and OLED display boards are connect with central processing unit control panel.Using direct capacitance layer
Analysis technology, detection method is simple, and detection speed is fast, radiationless harm.
It is based on Quasi-static capacitance chromatographic technique since the technical solution uses, this method is violated using flammable and combustible liquids
Product and water, the difference between other day common liquid dielectric is as basis for estimation, and using pure electric field measurement, no microwave is penetrated
Line, other latent dangerous factors such as radioactive source.It can realize quick detection, container shapes and thickness can be eliminated to measurement result
Influence, without corkage, the principle of pure electronic surveying can accomplish low cost and realize portable type measuring.Due to parallel
Plate capacitor is easy to be influenced by edge effect and destroy measurement accuracy, this equipment optimization detection capacitor board top electrode
The design of arrangement uses Optimization-type dressing electrode, reduces the air gap between pole plate and detection appearance wall, each electrode contact surface
Greatly, while the electrode arrangements quantity on detection capacitor board is increased, so that effective area is increased, measurement sensitivity is made to greatly increase,
Reduce measurement error, improves the judging nicety rate to liquid.Due to being based on Optimization-type dressing electrode in this embodiment scheme
The capacitor board sensor bulk designed is small, keeps integral device volume more small and exquisite, is used convenient for hand-held carry.
In conclusion being connect because the central processing unit control panel receives capacitor board with OLED display boards by transmitting;Institute
It includes MCU signal processing circuits that the transmitting stated, which receives capacitor board, the CDC conversion electricity being bidirectionally coupled in MCU signal processing circuits
Road, the input signal being connected on CDC conversion circuits;The central processing unit control panel includes being connected at MCU signals
The digital voltage regulator on circuit and CDC conversion circuits is managed, the lithium battery being connected on digital voltage regulator is connected to lithium battery
On lithium battery charging circuit, the communicating circuit being connected in MCU signal processing circuits is connected to the ends PC on communicating circuit;
OLED display boards include the sound light alarming circuit being connected in MCU signal processing circuits, are connected in MCU signal processing circuits
OLED display circuits, the sound light alarming circuit is connected in parallel with OLED display circuits, and constitutes technical solution, the technical solution
The action of detection material is completed using MCU signal processing circuits and CDC conversion circuits composition capacitance number conversion chip technology,
Corresponding dielectric constant is calculated by capacitance number conversion chip, judges whether liquid is contraband.To reach inspection
Survey process is rapid, radiationless effect.Be compared to each other with prior art similar product, the utility model also have it is small and
Cheap effect.
Above by reference to the preferred embodiment for having illustrated the utility model, not thereby limit to the right of the utility model
Range.Those skilled in the art do not depart from the scope of the utility model and essence made by any modification, equivalent replacement and change
Into should all be within the interest field of the utility model.
Claims (8)
1. a kind of Novel high-end holds dangerous liquid detector comprising central processing unit control panel, OLED display boards;Its feature
It is:The central processing unit control panel receives capacitor board by transmitting with OLED display boards and connect;The transmitting receives electricity
It includes MCU signal processing circuits to hold plate, the CDC conversion circuits being bidirectionally coupled in MCU signal processing circuits, is connected to CDC and turns
Change the input signal on circuit;The central processing unit control panel includes being connected to MCU signal processing circuits and CDC conversions
Digital voltage regulator on circuit, the lithium battery being connected on digital voltage regulator, the lithium battery charging being connected on lithium battery
Circuit, the communicating circuit being connected in MCU signal processing circuits are connected to the ends PC on communicating circuit;OLED display boards include
The sound light alarming circuit being connected in MCU signal processing circuits, the OLED display circuits being connected in MCU signal processing circuits,
The sound light alarming circuit is connected in parallel with OLED display circuits.
2. Novel high-end holds dangerous liquid detector according to claim 1, it is characterised in that:At the MCU signals
It includes chip U1 to manage circuit, the resistance R15 being connected on chip U1;Vibrator Y2 is connected to the capacitance C7 at the both ends vibrator Y2
With capacitance C8.
3. Novel high-end holds dangerous liquid detector according to claim 1, it is characterised in that:The communicating circuit packet
Chip U4 is included, the capacitance C10 being connected on chip U4.
4. Novel high-end holds dangerous liquid detector according to claim 1, it is characterised in that:The digital voltage stabilizing electricity
Road includes chip U3, the capacitance C2 being connected on chip U3, the capacitance C3 being connected on chip U3, capacitance C4, rectifying tube
D0, resistance R6, the capacitance C3 and capacitance C4 are connected in parallel, after the rectifying tube D0 and resistance R6 is connected in series with, and
Connection is connected to capacitance C3 and the both ends capacitance C4;It is connected to resistance R1 on chip U3, rectifying tube D1, rectifying tube D2, rectifying tube D3, institute
The resistance R1 stated is connected in parallel on chip U3, and the rectifying tube D1, rectifying tube D2, rectifying tube D3 is parallel with one another to be formed together
Rectifying tube group, the rectifying tube group are connected in chip U3 in parallel with resistance R1;Further include resistance R29, resistance R30.
5. Novel high-end holds dangerous liquid detector according to claim 1, it is characterised in that:The lithium battery charging
Circuit includes chip U2, the resistance R4 being connected on chip U2, and the capacitance C1 being connected in parallel on chip U2 is connected to chip U2
On contact head P1, contact head P4.
6. Novel high-end holds dangerous liquid detector according to claim 1, it is characterised in that:The OLED display electricity
Road includes OLED module, the capacitance C5 being connected in OLED module;Rectifying tube D4, resistance R24, the rectifying tube D4 and resistance
R24 is connected in series with;Switch KEY, resistance R7, resistance R8 are connected to switch KEY after the resistance R7 is in parallel with resistance R8
One end.
7. Novel high-end holds dangerous liquid detector according to claim 1, it is characterised in that:The CDC conversion electricity
Road includes chip U5, the resistance R40 being connected on chip U5, resistance R39, resistance R38, resistance R40;Resistance R39, resistance R38
It is series at respectively on chip U5;Further include capacitance C11, capacitance C6, contact head J2, what the capacitance C6 was connect with capacitance C11.
8. Novel high-end holds dangerous liquid detector according to claim 1, it is characterised in that:The sound-light alarm electricity
Road includes red colored lamp alarm group circuit, amber light alarm group circuit, green light alarm group circuit, audible alarm group circuit;It is described
Red colored lamp alarm group circuit include triode Q1, the resistance R17 being connected in triode Q1 base stages, resistance R25, resistance R17
It is connected in parallel with resistance R25;The resistance R26 being connected on triode Q1 collectors, the rectification being connected on the resistance R26 other ends
Pipe D5;The amber light alarm group circuit includes triode Q2, the resistance R19 being connected in triode Q2 base stages, resistance
R20, resistance R19 are connected in parallel with resistance R20;The resistance R2 being connected on triode Q2 collectors, it is another to be connected to resistance R2
Rectifying tube D6 on end;The green light alarm group circuit includes triode Q3, the resistance being connected in triode Q3 base stages
R22, resistance R35, resistance R22 are connected in parallel with resistance R35;The resistance R36 being connected on triode Q3 collectors, is connected to electricity
Hinder the rectifying tube D7 on the R36 other ends;Audible alarm group circuit includes triode Q4, the resistance being connected in triode Q4 base stages
R23, resistance R28, resistance R23 are connected in parallel with resistance R28;The loudspeaker LS1 being connected on triode Q4 collectors;It further include electricity
Hinder R31, resistance R32, resistance R8, switch K1, switch K2, switch K3;The resistance R31 and switch K1 is connected in series with;It is described
Resistance R32 and switch K2 be connected in series with;The resistance R8 and switch K3 is connected in series with.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721589317.9U CN208060731U (en) | 2017-11-24 | 2017-11-24 | Novel high-end holds dangerous liquid detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721589317.9U CN208060731U (en) | 2017-11-24 | 2017-11-24 | Novel high-end holds dangerous liquid detector |
Publications (1)
Publication Number | Publication Date |
---|---|
CN208060731U true CN208060731U (en) | 2018-11-06 |
Family
ID=63996648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201721589317.9U Active CN208060731U (en) | 2017-11-24 | 2017-11-24 | Novel high-end holds dangerous liquid detector |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN208060731U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109752365A (en) * | 2019-03-22 | 2019-05-14 | 公安部第一研究所 | A kind of quick-fried product survey meter of the danger of multi-technical fusion |
-
2017
- 2017-11-24 CN CN201721589317.9U patent/CN208060731U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109752365A (en) * | 2019-03-22 | 2019-05-14 | 公安部第一研究所 | A kind of quick-fried product survey meter of the danger of multi-technical fusion |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN202230051U (en) | Handheld formaldehyde detector | |
CN203798912U (en) | Portable electric field instrument system for site selection | |
CN204925090U (en) | Air quality detection device and system | |
CN104316112A (en) | Detector for multiple types of gas | |
CN208060731U (en) | Novel high-end holds dangerous liquid detector | |
CN207170304U (en) | Lithium battery cap surface of semi-finished texture and ultra-sonic welded automatic detection system | |
CN209247582U (en) | A kind of portable mobile PM2.5 on-line checking monitoring service system and its acquisition terminal | |
CN204989451U (en) | On --spot check -up communication tester of electric energy meter | |
CN107063347A (en) | A kind of gas sensor, monitoring system and monitoring method | |
CN206832204U (en) | Verticality detector for traffic engineering quality testing | |
CN202793980U (en) | Distributed wireless dust measuring instrument | |
CN205139002U (en) | Gaseous monitoring system of outdoor VOC | |
CN204202650U (en) | Multiple-gas detector | |
CN203688580U (en) | Portable sensor calibration device | |
CN208443442U (en) | Atmospheric environment monitoring equipment and system thereof | |
CN208580014U (en) | The granular material discharged detector of portable vehicle | |
CN103064037B (en) | Burglar alarm device based on magnetic field sensor | |
CN107525830A (en) | Air quality detector | |
CN204330655U (en) | A kind of portable formaldehyde and PM2.5 pick-up unit | |
CN203385690U (en) | Handheld type O2 gas detector | |
CN204405666U (en) | There is the alcohol content tester of two independent sample analytic system | |
CN202976375U (en) | Anti-theft alarm based on magnetic field sensor | |
CN203981661U (en) | A kind of portable water quality on-line detector | |
CN207627869U (en) | A kind of physical examinations system | |
CN208888079U (en) | A kind of building concrete quality testing tool |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |