Gravimat FMX
Measurement of basis weight (mass per unit area) / thickness
The sensor measures grammage and material thickness by means of X-Ray backscatter
- Afghanistan (AFG)
- Åland (ALA)
- Albania (ALB)
- Algeria (DZA)
- American Samoa (ASM)
- Andorra (AND)
- Angola (AGO)
- Anguilla (AIA)
- Antarctica (ATA)
- Antigua and Barbuda (ATG)
- Argentina (ARG)
- Armenia (ARM)
- Aruba (ABW)
- Australia (AUS)
- Austria (AUT)
- Azerbaijan (AZE)
- Bahrain (BHR)
- Bangladesh (BGD)
- Barbados (BRB)
- Belarus (BLR)
- Belgium (BEL)
- Belize (BLZ)
- Benin (BEN)
- Bermuda (BMU)
- Bhutan (BTN)
- Bolivia (BOL)
- Bonaire, Sint Eustatius and Saba (BES)
- Bosnia and Herzegovina (BIH)
- Botswana (BWA)
- Bouvet Island (BVT)
- Brazil (BRA)
- British Indian Ocean Territory (IOT)
- British Virgin Islands (VGB)
- Brunei (BRN)
- Bulgaria (BGR)
- Burkina Faso (BFA)
- Burundi (BDI)
- Cambodia (KHM)
- Cameroon (CMR)
- Canada (CAN)
- Cape Verde (CPV)
- Cayman Islands (CYM)
- Central African Republic (CAF)
- Chad (TCD)
- Chile (CHL)
- China (CHN)
- Christmas Island (CXR)
- Cocos (Keeling) Islands (CCK)
- Colombia (COL)
- Comoros (COM)
- Congo (COD)
- Congo-Brazzaville (COG)
- Cook Islands (COK)
- Costa Rica (CRI)
- Côte d’Ivoire (CIV)
- Croatia (HRV)
- Cuba (CUB)
- Curaçao (CUW)
- Cyprus (CYP)
- Czech Republic (CZE)
- Denmark (DNK)
- Djibouti (DJI)
- Dominica (DMA)
- Dominican Republic (DOM)
- Ecuador (ECU)
- Egypt (EGY)
- El Salvador (SLV)
- Equatorial Guinea (GNQ)
- Eritrea (ERI)
- Estonia (EST)
- Ethiopia (ETH)
- Falkland Islands (FLK)
- Faroes (FRO)
- Fiji (FJI)
- Finland (FIN)
- France (FRA)
- French Guiana (GUF)
- French Polynesia (PYF)
- French Southern Territories (ATF)
- Gabon (GAB)
- Gambia (GMB)
- Georgia (GEO)
- Germany (DEU)
- Ghana (GHA)
- Gibraltar (GIB)
- Greece (GRC)
- Greenland (GRL)
- Grenada (GRD)
- Guadeloupe (GLP)
- Guam (GUM)
- Guatemala (GTM)
- Guernsey (GGY)
- Guinea (GIN)
- Guinea-Bissau (GNB)
- Guyana (GUY)
- Haiti (HTI)
- Heard Island and McDonald Islands (HMD)
- Honduras (HND)
- Hong Kong SAR of China (HKG)
- Hungary (HUN)
- Iceland (ISL)
- India (IND)
- Indonesia (IDN)
- Iran (IRN)
- Iraq (IRQ)
- Ireland (IRL)
- Isle of Man (IMN)
- Israel (ISR)
- Italy (ITA)
- Jamaica (JAM)
- Japan (JPN)
- Jersey (JEY)
- Jordan (JOR)
- Kazakhstan (KAZ)
- Kenya (KEN)
- Kiribati (KIR)
- Kuwait (KWT)
- Kyrgyzstan (KGZ)
- Laos (LAO)
- Latvia (LVA)
- Lebanon (LBN)
- Lesotho (LSO)
- Liberia (LBR)
- Libya (LBY)
- Liechtenstein (LIE)
- Lithuania (LTU)
- Luxembourg (LUX)
- Macao SAR of China (MAC)
- Macedonia (MKD)
- Madagascar (MDG)
- Malawi (MWI)
- Malaysia (MYS)
- Maldives (MDV)
- Mali (MLI)
- Malta (MLT)
- Marshall Islands (MHL)
- Martinique (MTQ)
- Mauritania (MRT)
- Mauritius (MUS)
- Mayotte (MYT)
- Mexico (MEX)
- Micronesia (FSM)
- Moldova (MDA)
- Monaco (MCO)
- Mongolia (MNG)
- Montenegro (MNE)
- Montserrat (MSR)
- Morocco (MAR)
- Mozambique (MOZ)
- Myanmar (MMR)
- Namibia (NAM)
- Nauru (NRU)
- Nepal (NPL)
- Netherlands (NLD)
- New Caledonia (NCL)
- New Zealand (NZL)
- Nicaragua (NIC)
- Niger (NER)
- Nigeria (NGA)
- Niue (NIU)
- Norfolk Island (NFK)
- North Korea (PRK)
- Northern Marianas (MNP)
- Norway (NOR)
- Oman (OMN)
- Pakistan (PAK)
- Palau (PLW)
- Palestine (PSE)
- Panama (PAN)
- Papua New Guinea (PNG)
- Paraguay (PRY)
- Peru (PER)
- Philippines (PHL)
- Pitcairn Islands (PCN)
- Poland (POL)
- Portugal (PRT)
- Puerto Rico (PRI)
- Qatar (QAT)
- Reunion (REU)
- Romania (ROU)
- Russia (RUS)
- Rwanda (RWA)
- Saint Barthélemy (BLM)
- Saint Helena, Ascension and Tristan da Cunha (SHN)
- Saint Kitts and Nevis (KNA)
- Saint Lucia (LCA)
- Saint Martin (MAF)
- Saint Pierre and Miquelon (SPM)
- Saint Vincent and the Grenadines (VCT)
- Samoa (WSM)
- San Marino (SMR)
- São Tomé e Príncipe (STP)
- Saudi Arabia (SAU)
- Senegal (SEN)
- Serbia (SRB)
- Seychelles (SYC)
- Sierra Leone (SLE)
- Singapore (SGP)
- Sint Maarten (SXM)
- Slovakia (SVK)
- Slovenia (SVN)
- Solomon Islands (SLB)
- Somalia (SOM)
- South Africa (ZAF)
- South Georgia and the South Sandwich Islands (SGS)
- South Korea (KOR)
- South Sudan (SSD)
- Spain (ESP)
- Sri Lanka (LKA)
- Sudan (SDN)
- Suriname (SUR)
- Svalbard (SJM)
- Swaziland (SWZ)
- Sweden (SWE)
- Switzerland (CHE)
- Syria (SYR)
- Taiwan (TWN)
- Tajikistan (TJK)
- Tanzania (TZA)
- Thailand (THA)
- The Bahamas (BHS)
- Timor-Leste (TLS)
- Togo (TGO)
- Tokelau (TKL)
- Tonga (TON)
- Trinidad and Tobago (TTO)
- Tunisia (TUN)
- Turkey (TUR)
- Turkmenistan (TKM)
- Turks and Caicos Islands (TCA)
- Tuvalu (TUV)
- Uganda (UGA)
- Ukraine (UKR)
- United Arab Emirates (ARE)
- United Kingdom (GBR)
- United States (USA)
- United States Minor Outlying Islands (UMI)
- Uruguay (URY)
- US Virgin Islands (VIR)
- Uzbekistan (UZB)
- Vanuatu (VUT)
- Vatican City (VAT)
- Venezuela (VEN)
- Vietnam (VNM)
- Wallis and Futuna (WLF)
- Western Sahara (ESH)
- Yemen (YEM)
- Zambia (ZMB)
- Zimbabwe (ZWE)
Backscattering of X-rays
The weight monitoring and control system measures the weight continuously, without contact, destruction-free and on moving product. The X-ray radiation from an X-ray tube is directed towards the product, from which it is partially scattered back.
The greatest part of the radiation passes through the product and is absorbed by a beam dump or steel facing roller installed there. This backscattered portion is an indication of the weight of the product.
Product Highlights
- Single-sided measurement requiring a minimum of space; easy to integrate into existing systems
- Measuring device works with an X-ray tube that can be turned off, and has no radioactive isotope emitter
- Insensitive to distance-related variations due to patented detection system
Customer benefits
- Can be installed without having to modify the processing range and existing web guiding arrangement
- Easy to certify, and a minimum of radiation safety requirements; X-rays can be turned off
- Highly accurate and virtually insensitive to product composition
The Gravimat FMX sensor consists of a compact X-ray tube and its high voltage supply as well as special modern X-ray detectors with the electronics for data acquisition. It is completely insensitive to environmental influences such as temperature and humidity. This new measuring principle with the proven components is used for data acquisition and processing by Mahlo and is therefore fully compatible with other products of the Qualiscan QMS family.
The way in which X-rays interact with mass allows the measurement of a very wide range of basis weights with only one sensor - from 50 - 20,000 g/m2 with the fabric on a counter roll or also free-floating!
