Инструменты Рентгеновского Анализа: ORA ASSAY
Загрузить Adobe Flash Player

Инструменты Рентгеновского Анализа: ORA ASSAY

Печать PDF


Karatmeter ORA
Быстрое неразрушающее высокоточное определение карат/процентного содержания драгоценных металлов в ювелирных изделиях с помощью технологии микрофокусного РФА
Если у Вас есть вопросы по прибору, сделайте запрос, пожалуйста, на Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript  


Fast non-destructive precise karat/percentage determination of jewellery samples and precious alloys using micro-spot XRF technology


Karatmeter ORA ASSAY , a desktop spectrometer is fast, non-destructive and accurate model for

measurement of precious metals, alloys and finished jewellery. Thanks to miniature SME technology for

its compact size to fit comfortably into a small space.


Based on 50 years of innovation in X-ray technology Bruker Nano GmbH, Germany has designed and developed special OEM kits for Karatmeter ORA ASSAY taking into consideration the latest technology, simplicity and overall cost. Bruker is worldwide leader in several technologies including XRF, XRD, NMR, FTIR, AFM, SEM, EPM, GCMS and many more.

The unit precisely & quickly determines the elemental composition of jewellery alloys including yellow gold, white gold, platinum group metals, silver alloys and all metals even without the assistance of technically skilled person.


Most versatile top geometry i.e. excitation from top and small spot size down to 0.3mm allows non-contact and non-destructive measurement of even irregular shaped samples. Articles down from 0.5mm up to the size of 200x200x100mm can be easily placed directly on the sample stage and examined without any sample preparations. The right positioning of sample is supported by magnified image through optical microscope.

Quantum equipment, well known organization in Asian markets for X-ray and laser supplies continuously improving and innovating the established techniques in precious metal analysis.


The detection of fluorescence radiation by a prop-counter offers a large sensitive area, thereby capturing a large amount of fluorescence which is vital for precious analysis of metals. The detection by high resolution silicon drift SDD detector also available for low level, light elements and complex alloys. The desired concentrations are quantified with standard-based Empirical and standard-less Fundamental Parameter calibrations. This supports high accuracy in the range of 0.2wt.% together with analysis of unknown metals. Models are categorized into 3-versions depending upon configuration and applications.

ParameterKaratmeter ORA ASSAY
ExcitationMicro- focus, W-target, thin glass window X-ray tube
High Voltage50kV/1.0mA (50W) application optimized
DetectorHigh resolution gas filled proportional counter with large window area, auto temp compensation
FWHM < 900eV
Spot size0.3mm or 0.5mm
Optional 4-position collimator changer
Element rangeCa (20) to U (92)
Accuracy0.0 – 0.3 wt.%
Sample viewUSB high resolution colour CCTV camera with multiplexed graphics
Sample positioningManual scissor z-stage optional motorized z-stage/auto focus
QuantificationStandard-based Empirical and standard-less Fundamental Parameter precious alloys calibrations
Power supply110/230V AC, 50/60Hz, 100W
Dimensions370x400x330mm WxDxH

Application Examples :

Jewellery Showrooms
Gold loan companies / Banks
Assay / Service centres
Bullion Merchants / Exporters
Goldsmith / Manufactures
Gold Refiners