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A18.1816-A Questioned Document Examination Analyzer
A18.1816-A Questioned Document Examination Analyzer
A18.1816-A Questioned Document Examination Analyzer
A18.1816-A Questioned Document Examination Analyzer
A18.1816-A Questioned Document Examination Analyzer
A18.1816-A Questioned Document Examination Analyzer
A18.1816-A Questioned Document Examination Analyzer

A18.1816-A

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A18.1816-A Questioned Document Examination Analyzer


  • Supply Ability:50 piece / Month
  • Country of Origin:Ningbo
Quantity:
Product Description

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A18.1816Questioned Document Examination Analyzer
A18.1816Questioned 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
Function

Fluorescent 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.

Objects

Light Source

Excitation

Receiving

Exam

Distinguish altered or added text by different kinds of ink

Excitation

485-550 nm

700-900 nm

Alter

Natural subside text on thermal paper, carbon paper

Excitation

480-550 nm

700-740 nm

Subside

Phosphor fingerprint

Excitation

480-550 nm

700-740 nm

Fluorescent

Multilayer indentation

Reflected Light _ Side

000nm

900nm

Indentation

Text on the black cloth

Reflected Light _ Side

000nm

900nm

Covered Text

Text in the Kraftpaper envelopes

Transmitted Light _ UV

000nm

900nm

Transmit

Correction Fluid

Transmitted Light _ UV

000nm

900nm

Alter

Security Trademark

UVC

000nm

000nm

Real/False

Currency Fluorescent

UVA

000nm

000nm

Fluorescent

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