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Document Examination System
Published Questioned Documents About Document Examination
Buttons of Document Examination System
Document Examination System in Work
Document Examination System

A18.1816-A Published Questioned Documents about Document Examination System

A18.1816-A
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Questioned System About Document Examination 

Questioned Document Examination System
 
Questioned Document Examination System

What is the Important Parts of Document Examination

published questioned documents about document examination

A18.1816-A Document Examination System

Back view, with doors opened at both sides, easy to put large documents

 
Questioned Document Examination Details

A18.1816-A Document Examination System,

Multi Light Source For Checking All Kinds of Documents

 
Questioned Document Examination System Buttons

A18.1816-A Document Examination System, Control Panel

 
Questioned Document Examination System Working

A18.1816-A Used With A30.1801 Forensic lmage Analysis Software Crime lmage

 
Questioned Document Examination System Effects
 
Questioned Document Examination System Effects

History Effect of Published Questioned Documents Examination

Questioned Document Examination System Effects
 
Questioned Document Examination System Effects
 

A18.1816 Questioned Document Examination Analyzer

A18.1816 Questioned Document Examination Analyzer is an ideal tool to inspect, observe and compare many kinds of objects, evidences including:                                                                                                                                                                                   
--All kind of questioned documents: Used of different kinds of writing instruments, by adding, altering, conceal, forgery and other methods of fade contract, IOUs, real estate contracts, invoices, bills of exchange, checks, bills of lading, passports and so on.                                                                                                                                                                                                   
--Various fluorescent encryption securities: checks, stocks, credit cards, stamps and special trademarks.                                                                                                                           
--Identify cards, resident identify cards, temporary residence permits, etc.                                                                                                                                                                          
--Currency: US Dollars, H.K. Dollars, RMB, etc.
Light Source SystemMain Light Source : 1x 24V/150W Halogen Lamp, With Cooling Fan, Focusing Lens, And Heat-Resistance Glass Cover
UVC: Short-Wave Ultraviolet Light 254nm, 1x10W
UVA: Long-Wave Ultraviolet Light 365nm, 1x10W
Upper Visible Side Light: 1x50W, With Lamp Holder Which Can Adjust Position And Angle Freely, Used To Check Indentation
Transmitted White Light 2x20W
Excitation Wavelength: 000nm,365nm,450nm,465nm,515nm,530nm,565nm,580nm,900nm
Receiving Filter: 000nm,415nm,450nm,565nm,700nm,720nm,740nm,800nm,900nm
Video Camera SystemHigh Sensitive, High Resolution 1/3” CCD Color Digital Camera, 650 Lines, Sensitivity 0.001 Lux, Especially Sensitive To Near-Infrared And Visible Spectral Bands Light Source.
Electrical Zoom Lens, Aperture 1.2, Zoom Ranges 1~30x
FunctionFluorescent Light Source With Multi Excitation And Receiving Filter Combinations,Can Exam And Compare The Different Inks Used On Documents
Reflect Light And Receiving Filter Combination, Can Exam The Reflection And Absorption Of Different Wavelengths On Different Inks.
Reflect Light And Receiving Filter Combination, Can Exam The Transmission Of Different Wavelength Infrared Light On The Different Inks.
Transmit Light And Receiving Filter Combination, Can Exam The Transmission Of Different Wavelength Infrared Light On The Different Inks
Reflect Side Light Can Exam The Scratch, Cut Marks On documents.
Transmit Light Can Illuminate From The Bottom Side To Exam The Scratch, Cut Marks On Documents.
 
 

Samples to choose light source according to different objects.

ObjectsLight SourceExcitationReceivingExam
Distinguish Altered Or Added Text By Different Kinds Of InkExcitation485-550 nm700-900 nmAlter
Natural Subside Text On Thermal Paper, Carbon PaperExcitation480-550 nm700-740 nmSubside
Phosphor FingerprintExcitation480-550 nm700-740 nmFluorescent
Multilayer IndentationReflected Light _ Side000nm900nmIndentation
Text On The Black ClothReflected Light _ Side000nm900nmCovered Text
Text In The Kraftpaper EnvelopesTransmitted Light _ UV000nm900nmTransmit
Correction FluidTransmitted Light _ UV000nm900nmAlter
Security TrademarkUVC000nm000nmReal/False
Currency FluorescentUVA000nm000nmFluorescent

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