This section provides an overview for density meters as well as their applications and principles. Also, please take a look at the list of 21 density meter manufacturers and their company rankings. Here are the top-ranked density meter companies as of December, 2023: 1.Koehler Instrument Company, 2.Microtrac MRB, 3.KYOTO ELECTRONICS MANUFACTURING CO., LTD..
A density meter is a device that measures the density of a liquid or solid. Density is a value that varies depending on the sample concentration and the type of solvent, and density measurement is used in a variety of industries. Density measurement methods include vibrating densimeters for liquids and pycnometers for solids.
Density measurements are highly repeatable and can be made to 3-5 decimal places (g/cm3). Hand-held density meters are also available, which are less accurate than regular bench-top density meters, but are highly portable and can be used to make digital measurements on site. There are also process density meters (on-line density meters) that are attached to pipes and continuously measure liquid density.
Density meters are used in various industries to measure the density of binary liquid mixtures because density values are closely related to concentration.
For example, a prescribed analytical method for measuring alcohol concentration stipulates the use of a density meter. In addition to ethanol, the density meter can also be used for IPA, hydrochloric acid, sulfuric acid, sodium hydroxide, acetone, NMP, gasoline, diesel fuel, lubricating oil, refrigerants, beer, sugar (Brix), etc., making it suitable for use in any industry, including chemical, petroleum, food, beverage, semiconductor, battery, and automobile.
There are also density meters that can be used to measure not only liquid density but also solid density such as slurry, but it is necessary to confirm that the device is compatible.
The measurement method of digital density meters for liquids is standardized, this method is also registered by ASTM, DIN, etc. as an oscillating density measurement method using a U-tube.
It should be noted that some density meters use this method, while others use their own method to correlate with the values of vibrating densimeters.
Density measurement is also possible with Coriolis mass flowmeters, but since these are different from vibrational density meters, it is necessary to select the appropriate device for the purpose in advance.
Solid density measurement is used in research, development, and quality control efforts in a variety of industries. One of these techniques is used as an internationally recognized test method. In fact, many of the standard test methods described for solid density measurement were created around these instruments.
These test methods are used in all industries today. Tap density meters, gas pycnometers, and other methods should be selected to suit the purpose. It is also necessary to check for compliance with many measurement methods, such as ASTM, ISO, UOP, USP, MPIF, and JIS.
Density values are so common that they are measured in many fields, and in such cases, they are measured simultaneously with other physical properties.
In a liquid density meter, for example, a sample is injected into a U-tube inside the instrument. By introducing the sample from the density meter into a refractometer or similar instrument, multiple items can be measured in a short period. Not only does it work well in laboratories where efficiency is required, but it can also perform complex analyses by using multiple parameters.
This includes three-component analysis and calculation of volumetric modulus. This can be done with a bench-top density meter or a process density meter.
Density measurement is performed with a fixed amount of sample in the device, so if bubbles or impurities are present, they will be included in the measurement. In the case of liquids and slurries, air bubbles must be removed without fail.
*Including some distributors, etc.
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Micromeritics Instrument Corporation, founded in 1962 with headquarters in Norcross, Georgia, USA, is a manufacturer of custom scientific analytical instruments and laboratory equipment. The company's product line includes instruments and equipment to analyze and evaluate particle size, porosity, material density, surface area, and catalyst characterization. Its services include particle size analysis, pore size and pore volume measurements, and material density determination. These products and the company's services are used in the manufacture of numerous products, such as lithium-ion batteries, medical devices, and CCUS (carbon capture, utilization, and storage) systems.
Gilson Company, Inc. is an American manufacturer and supplier of construction material testing equipment based in Lewis Center, Ohio. The company was established in 1939 with a primary focus on manufacturing the testing screen, a laboratory-scale screening machine, to cater to the mining and highway construction industries' requirements. Over time, Gilson has expanded its product portfolio and now offers a wide range of equipment, including ovens and furnaces, scales and balances, general laboratory testing equipment, as well as material testing equipment for aggregates, asphalt, concrete, and soils.
Microtrac MRB, a manufacturer of particle size analysis equipment, was established in 1979 and is headquartered in Massachusetts, United States. The company provides a range of products, including laser diffraction particle size analyzers, image analysis particle size analyzers, and Coulter principle particle size analyzers. Its products are used by multiple industries, including the pharmaceutical, food and beverage, and plastics industries. Microtrac MRB also provides particle size analysis solutions, with the company devoted to providing its customers with the finest products and services while offering a wide range of support options to help customers use its products to the maximum.
Koehler Instrument Company is a manufacturer of precision instruments for the petroleum, petrochemical, and related industries. With over 100 employees and operating in more than 20 countries, it was founded in 1925 and is headquartered in Holtsville, New York. The company's main activity is the design, development, and manufacturing of petroleum testing instruments, including viscosity meters, density meters, and flow meters. The company also offers a wide range of laboratory instruments, including refractometers, densitometers, and pH meters. Koehler's products are used by a wide range of customers, including oil and gas companies, refineries, and research laboratories.
Haida International Equipment was founded in 2004 as a manufacturer and supplier of Testing Equipment in China. The company deals in various precision testing instruments, machines, and services such as Batteries, Furniture, Textiles, Leather and Shoes, and Rubber and Plastic test equipment. There is also Adhesive tape, Cookware, Luggage, Optical, and Vibration test equipment along with Accelerated Environment Test Chamber (AES) that executes QC inspection on electronic appliances, paper products, metals, research institutes, and lots more. The other testing machines cater to industrial and mining enterprises, colleges and universities, engineering quality supervision stations, and other departments.
Anton Paar, founded in 1933 and headquartered in Graz, Austria, is a manufacturer and supplier of analytical instruments Their product range includes density meters for measuring liquid and solid density, concentration meters for analyzing solution concentration, viscosity meters for assessing liquid viscosity, particle size analyzers for measuring particle size in liquids or solids, and chromatography systems for substance separation and identification in mixtures. Anton Paar's products cater to a wide range of industries, including food and beverage, pharmaceutical, and chemical, providing analytical solutions for diverse applications.
Sommer Messtechnik, with roots going back to 1987, Sommer GmbH & Co KG became an independent company in 1997, and was renamed as Sommer GmbH, is a manufacturer specializing in the development and sale of sensors and environmental monitoring equipment in Austria. The company has been a sought-after partner in hydrography, meteorology, industry, and water, and its portfolio includes the RQ-30/RQ-30a, radar profiler RP-30, USH-9 snow depth sensors and wind sensors. These products are designed for data recording, transmission, and analysis of the captured data. Started at home market Austria, Germany and Switzerland, and has become a global supplier.
Scaletec Mechatronics Private Limited is a manufacturer and supplier, founded in 2000, specializing in industrial weighing solutions. Based in India, the company was established to offer weighing equipment and systems. Its product range includes precision scales, load cells, weighing indicators, and weighbridges. These solutions cater to industries such as logistics, manufacturing, agriculture, and food processing. With an aim on accuracy and reliability, the company's products are used in ensuring precise measurements for various applications, useful to efficient operations and quality control in diverse sectors.
Kyoto Electronics Manufacturing Co., Ltd. (KEM), established in 1961 in Japan, is a manufacturer and supplier of scientific instruments, medical instruments, and medical substance generators. The company's product line has grown to include an extensive line of analytical instruments and thermal measuring equipment that includes automatic potentiometric titrators, Karl Fischer moisture titrators, density and specific gravity meters, and thermal measuring instruments to measure the thermal conductivity and heat flow of various substances and materials. The company's equipment and instruments are used across the chemical, electricity, paint, food and beverage, and petrochemical industries, among many others.
Bopp & Reuther, founded in 1872 in Mannheim, Germany, is a manufacturer of control valves and measurement instruments. The product range includes control valves, safety valves, and pressure regulators. These offerings provide precise control, optimum safety, and optimal performance in fluid and gas handling processes. The control valves ensure accurate flow regulation, while the safety valves protect against overpressure situations. Pressure regulators maintain consistent pressure levels in various applications. These products find application across industries such as oil and gas, petrochemical, chemical, and power generation.
Rhosonics, established in 1992 in Enschede, Netherlands, is a manufacturer of ultrasonic instrumentation, including ultrasonic concentration meters, slurry density meters, and pipe wall thickness gauges. The company’s products provide accurate and non-intrusive measurement solutions, ensuring precise process control, improved efficiency, and reduced downtime in various applications. The ultrasonic concentration meters determine the concentration of liquids, while slurry density meters measure the density of abrasive slurries. Pipe wall thickness gauges assess the thickness of pipes in industrial settings. These products find applications in industries such as mining, mineral processing, food and beverage, and wastewater treatment.
ALPTEC, established in 1986 in Quingdao, China, is a manufacturer of static grounding and overfill protection systems. The product range includes static grounding clamps, overfill protection valves, grounding monitors, and grounding reels. These offerings provide essential safety measures, preventing static electricity buildup and overfill incidents in hazardous environments. The static grounding clamps ensure safe grounding of equipment, while overfill protection valves prevent spills during filling operations. Grounding monitors provide real-time monitoring of grounding connections, and grounding reels offer convenient cable management. These products are used in industries like petroleum, chemical, and pharmaceuticals, ensuring compliance with safety regulations and preventing accidents.
Brabender GmbH & Co. KG, established in 1923 and headquartered in Germany, is a manufacturer that specializes in advanced laboratory and processing equipment for applications in the food, chemical, and pharmaceutical industries. Its product range includes precision instruments like laboratory extruders, feeders, and rheometers. These instruments are used in polymer research, formulation development, and quality control in food production, chemical synthesis, and pharmaceutical drug formulation. The company's laboratory extruders serve the purpose of simulating industrial processes and testing new formulations. This ensures that products comply with stringent technical standards and regulatory requirements.
Industrial Physics, a portfolio company of KKR a private-equity firm, is a manufacturer of test, measurement, and inspection equipment, based in the United States. The company specializes in the food and beverage, paper and plastics, paint and coatings, materials testing, and consumer electronics markets. They operate across a family of brands, including TQC Sheen, Technidyne, and C&W Equipment. They have been supporting manufacturers, laboratories, and production lines across a multitude of industries.
A.KRÜSS, since 1796, has been a manufacturer of high-precision analysis and laboratory instruments. The instruments are refractometers, polarimeters, density meters, flame photometers, and melting point meters. More products are circulating thermostats, gas analyzers, microscopes, spectroscopes, and spectral measuring instruments. The company in Germany is ISO 9001:2015 and 14001:2015 certified and provides services such as application consulting, product demonstration, calibration & adjustments, maintenance & repair, and installation with warranty extensions. The company has a pages campus with facts about density measurement, radioactivity, measuring methods, and optical devices.
Berthold Technologies was founded in 1949 by Dr. Rudolf Berthold, located in Oak Ridge, Tennessee, and is a developer and manufacturer of measuring solutions. The company develops measurement technologies including level measurement, density measurement, bulk flow measurement, online moisture measurement, concentration measurement, and sources and shields. It's products find applications in a wide range of industries, including refineries, oil and gas, chemical and petrochemical, sugar, pulp and paper, food and beverages, building and construction, mining and mineral processing, water and recycling, and power generation. The company holds ISO9001 and ISO14001 certificates,
BIOBASE, established in 1999, is a high-tech manufacturing enterprise whose business covers biomedical, e-commerce, intelligent manufacturing, scientific equipment In Vitro Diagnosis (IVD) instrument and reagent based in China. Specialized in research, development, and manufacturing of laboratory and medical equipment, catering to life sciences, healthcare, and environmental protection industries. Their product range includes biological safety cabinets, incubators, centrifuges, and more. The company has branch offices in 24 provinces in China, with overseas establishment in USA, Dubai, India, Algeria, Singapore, and business partners in 130 countries.
41 products are listed.