Простаивает лазерный анализатор

Находится в Питере неужто никому анализы не нужны

Laser is measuring size frequency by projection area

Dear Vladimir, 

Laser is measuring size frequency by projection area, this can only approximately be converted into frequency by mass/weight, which is the only desirable dependent variable. There are various laser analyzers - some are scanning the sedimenting particles and record also the settling time. Do you have one? Which type? 

Thank you for the first question. 


Интересно! А что анализирует

Интересно! А что анализирует Ваш анализатор? Элементарный состав, размерность частиц и ещё чего?

Dispersity of sand - Analyzer

Ne elementarnyj sostav. I cannot write Russian but read only (I have no azbuka keyboard). The Analyzer's program can convert settling velocity distributions into grain size (particle shape can be specified) distributions. But I do NOT recommend it for sedimentological purposes (interpretations). You will find more on other my pages, such as: 





http://www.granometry.com/index.php/variables.html  etc.. 

Simply click on the items in the green (left) navigation stripe 


Да, хотелось бы поподробнее -

Да, хотелось бы поподробнее - какие анализы делаете, сроки, цены?

More details, time, price

Hi Elena,

Please read the articles they appear after clicking onto the items in the left (green) navigation stripe. 


The finest measurable sand is analyzed (with sample introduction) within 20 minutes; medium sand may take 5 minutes, and coarse sand 1-2 minutes. 

Prices are in EUROs, but you may convert them into any currency here: http://www.granometry.com/index.php/prices.html

You may email me to jb@grano.de 


делает гранулометрический

делает гранулометрический анализ

но не ситовым спосбом очень быстро и выделяет большое количество фракций

применим от среднезернистых песков до пелитов

а да применим  для несцементированных пород

Granulometry is not only grain size distribution

Granulometry refers not only to grain size distribution - it means "dispersity analysis", "dispersity properties". And "dispersity" may be described by any suitable dispersity unit: 


The independent distribution variable (x) corresponds to the dispersity unit (Dispersitätsgrösse in German language) defined by Hans RUMPF (1975, page 8):

»Dispersity Unit is a physical quantity specified by a numerical value and unit dimension;
this quantity can describe a particle collective by a distribution function.«

For sedimentological interpretations, I prefer sedimentation (settling) velocity (rate). But the Analyzer's® software SedVar® can convert settling rate which is measured into any variable (both number and distribution), such as grain size (you may specify it by SF (Shape Factor), into Reynold's number, etc. - http://www.granometry.com/index.php/variables.html  . 

The measuring intervals (fractions") are logarithmically equidistant, their with is 0.02 PSI (=coefficient 21/50), which means there are 50 intervals per 1 PSI (double/half of the settling velocity in cm/sec).

The finest measurable sand is analyzed (with sample introduction) within 20 minutes; medium sand may take 5 minutes, and coarse sand 1-2 minutes.

Pelites can not be analyzed - for quartz density, the fine limit is about 0.05 mm .

The Analyzer®  is the most precise istrument worldwide. 

It requires minimum sample size - typically 0.1 gram of fine sand, typically 1-5 gram of medium sand. The samples must be reduced to the appropriate size by a rotational sample splitter (divider). 

Thank you for your questions.