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Topic: Mass flow meter

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	Thermal mass flow-meter particularly for gases - Patent 4972708
		However, as the rate of flow increases, the duct is cooled in the zone of the upstream measuring resistor and is additionally heated in the zone of the downstream measuring resistor.
		Flow then alters the temperature of the measuring resistor 12a, which is located in the flow, whereas the measuring resistor 12b maintains its temperature due to the fact that it is fitted in a blind-end hole.
		When mass flow occurs, the upstream measuring resistor 12a is cooled, and the downstream measuring resistor 12b is heated by the transmission of heat, so that debuting of the measuring bridge 19 and a display at the indicating instrument 20 occurs.
	www.freepatentsonline.com /4972708.html (3339 words)

	BURKERT Fluid Control Systems - Bypass mass flow meter (Site not responding. Last check: 2007-10-17)
		To achieve this level of functionality, the Burkert mass flow sensor is operated via a powerful microprocessor that is integrated into the fundamental controls of the devices to directly generate a digital output signal.
		Passing over the sensor, gas mass flow is measured according to the thermal principle, which has the advantage of delivering direct mass flow without correction for pressure and temperature.
		The differential temperature measured by thermopiles is a measure of the mass flow rate passing this bypass channel.
	www.ferret.com.au /articles/c8/0c03e5c8.asp (476 words)

	A Flow Measurement Primer - Thermal Mass Flow Meters
		Thermal Mass Flow Meters are based on an operational principle that states that the rate of heat absorbed by a flow stream is directly proportional to its mass flow.
		Typically the heater is attached to the middle of a flow tube with a constant heat input.
		Coriolis mass flowmeters tend to be much larger is size compared to other types of flowmeters and, when purchase price is of concern, Coriolis mass flowmeters may not be an option due to their high price.
	www.crossinstrumentation.com /ga/mfg/Flow/tmf_meters.htm (1110 words)

	Flow meter (Site not responding. Last check: 2007-10-17)
		A flow meter is a device used to measure gas, air, water, temperature, material, or liquid.
		Flow meters are used in all types of industries including: manufacture ring, government, healthcare, transportation and shipping.
		In many cases, mass flow meters are used on assembly lines or in processing plants to measure the amount of raw materials used.
	www.daytonastorage.com /industrial_.html (290 words)

	Hydrocarbon mass flow meter - Patent 5259239
		Such is the basis for the multiphase hydrocarbon mass meter which measures both the instantaneous mass of hydrocarbon contained in a multiphase mixture and the water content of the mixture.
		Flow rate measurement means 100 measures the flow rate V of the mixture as it passes and provides a corresponding flow rate signal to multiphase hydrocarbon mass measurement means 90.
		Flow rate measurement means 310 measures the flow rate V of the mixture as it passes and provides a corresponding flow rate signal to water cut measurement means 290.
	www.freepatentsonline.com /5259239.html (4080 words)

	Corioilis liquid and gas mass flow meter info Flowmeterdirectory (Site not responding. Last check: 2007-10-17)
		The ACM line of mass coriolis flow meters are superior process control tools that allow real-time measurement of density and flow in liquids, slurries and gases.
		The mass Coriolis flow meter features no moving parts and smooth flow tubes constructed of 316 stainless steel, resulting in a design that is easy to clean and maintain.
		As material flows through the mass Coriolis flow meter, the flow tube is vibrated and the resulting Coriolis forces are measured to determine mass flow rate and density.
	www.flowmeterdirectory.com /flowmeter_coriolis.html (521 words)

	mass flow meter thermal (Site not responding. Last check: 2007-10-17)
		Thermal Mass Flowmeters - The rate of heat absorbed by a flow stream is directly proportional to its mass flow.
		The amount of heat dissipated from the heat source in this manner is proportional to the number of molecules of a particular gas (its mass), the thermal characteristics of the gas, and its flow characteristics.
		The maintenance-free air flow meter is simple to install with the supplied mounting flange.
	www.flowmeterdirectory.com /flowmeter_thermal_mass.html (1102 words)

	Mass Flow Meters & Controllers: Vortex Shedding Flowmeter & Rotameters by Aalborg (via CobWeb/3.1 ... (Site not responding. Last check: 2007-10-17)
		The Vortex Shedding Flow Meter creates vortices as fluid goes around a bluff body and is alternately shed on each side of the body.
		AALBORG’s mass flow meters and mass flow controllers are ideal for measuring and controlling the flow of gases.
		The GFM mass flow meter, which is ideal for thermal mass flow metering of clean gases, is just one of the competitively priced flow meters available.
	www.aalborg.com.cob-web.org:8888 (387 words)

	Sable Systems SS-3 Subsampler with Mass Flow Meter
		Deploying a separate pump, flow meter and needle valve is often a logistical nightmare.
		We stress that this meter measures mass flow rate, which is not to confused with the volumetric flow rate measured by inferior meters such as rotameters.
		Flow meter is readable to 0.1 ml/minute (-5.0 - 99.9 ml/minute) or 1 ml/minute (100 ml/minute and above).
	www.sablesys.com /trss3.html (1267 words)

	Non-Contact Mass Flow Meter
		The RayMas Mass Flow Meter measures mass flow in a pneumatic conveying application with no moving parts or mechanical device coming into contact with materials- a truly non-contact solids mass flow meter.
		Flow measurement of 0 to more than 300,000 lbs/hr can be achieved by using a low energy microwave device that measures the intensity of reflected Doppler-shifted energy.
		The flow meter can be manufactured in carbon steel, stainless steel or aluminum, in line sizes from 2 ½ in.
	www.chemicalonline.com /Content/news/article.asp?Bucket=Article&DocID={733991C7-4142-11D4-8C50-009027DE0829}&VNETCOOKIE=NO (244 words)

	Thermal Mass Flow Meter
		As gas flows by the flow sensor, the gas molecules carry heat away from the surface, and the sensor cools down as it loses energy.
		The electrical power required to maintain a constant temperature differential is directly proportional to the gas mass flow rate and is linearized to be the output signal of the meter.
		Sage Thermal Mass Flow Meters are designed for high performance mass flow measurement of flow rate and consumption of gases such as air, oxygen, natural gas, nitrogen, digester gas, bio gas, flare hydrogen, argon, carbon dioxide and other gases and gas mixes.
	www.sagemetering.com /b_pri.htm (897 words)

	Mass Flow Meters & Controllers: Vortex Shedding Flowmeter & Rotameters by Aalborg
		A low cost solution to thermal mass flow metering for gases is presented by Aalborg in introducing the model GFM mass flow meter line.
		Metered gases are divided into two laminar flow paths, one through the primary flow conduit, and the other through a capillary sensor tube.
		Both flow conduits are designed to ensure laminar flows and therefore the ratio of their flow rates is constant.
	www.aalborg.com /products/product_details.php?id=20 (467 words)

	Mass Flow Meter and Volumetric Flow Meter News
		The volumetric flow rate is determined by creating a pressure drop across a unique internal restriction, known as a Laminar Flow Element (LFE), and measuring differential pressure across it.
		Unlike other flow measuring devices, in laminar flow meters the relationship between pressure drop and flow is linear.
		The underlying principle of operation of the flow meters is known as the Poiseuille Equation.
	www.alicatscientific.com /news.php (1421 words)

	Mass Flow Meters - Digital Gas Flow Meter and Volumetric Flow Meter Products by Alicat Scientific
		Alicat M series mass flow meters were designed to be used as a stand-alone device.
		The M series mass flow meters also measure pressure, temperature and volumetric flow in addition to mass flow which means fewer instruments you will have to buy and install.
		Flow meters in this range are typically used in light industrial applications including monitoring of shaping air in liquid paint applications (guns and bells), monitoring of convey, fluidization and dosing airs in powder delivery systems, equipment for emissions regulations compliance (SKID benches) and quality testing of critical systems on the shop floor.
	www.alicatscientific.com /products/gas-flow-meter.php (1162 words)

	Flow Meters - Gas Flow Meters, Mass Flow Meters and Controllers, Water Flow - Sierra Instruments, Inc (via CobWeb/3.1 ... (Site not responding. Last check: 2007-10-17)
		Sierra's flow measurement technologies precisely measure or control very low flows of gas down to less than 1 sccm full scale as well as extremely high flows of gas, liquid, and steam.
		Mass Flowmeters and Controllers - We are a manufacturer of premium quality & performance Mass Flow Measurement and Control instrumentation.
		We provide gas flow meters, water flow meters, as well as meters for other liquids and steam.
	www.sierrainstruments.com.cob-web.org:8888 (506 words)

	Mazda Air Flow Mass Meter at Drivewire.com
		The Mazda air mass meter is located in the engine compartment usually adjacent to the air filter assembly.
		The air mass meter does this by sending an electronic signal to the cars computer, and thus sends the correct signal to the fuel injectors that regulate the amount of fuel that is delivered to the engine.
		If you are experiencing a repeated failure of your Mazda air flow meter this may be due to the fact that you have an aftermarket performance air filter that uses an oil based filter element.
	www.drivewire.com /mazdaparts/airflowmassmeter.html (310 words)

	Eldridge Products, Inc. thermal mass flowmeters. EPI manufactures Master-Touch thermal mass flow meters to meter the ... (Site not responding. Last check: 2007-10-17)
		The bridge board and microprocessor for each sensor are mounted outside of the flow duct in an enclosure at the end of the probe shaft.
		However, flow transmitter assemblies may be specified with either one average output signal and/or individual signals to allow individual sensor readings at the Thermal Mass Flowmeter System control panel.
		Also note that the accuracy of any one point becomes of less importance to the final accuracy of the total flow rate as the number of points is increased because of the averaging method utilized.
	www.korins.com /m/epi/9000.html (1061 words)

	Mass Flow Meters and Controllers by Sierra Instruments
		The 824 thermal mass flowmeter serves a wide range of inert gas flow applications including process control, flow research, instrument OEMs, gas panels, and cell culture maintenance.
		The 822 thermal mass flowmeter serves a wide range of inert gas flow applications including process control, flow research, instrument OEMs, gas panels, and cell culture maintenance.
		The Sierra 822 Top-Trak® Mass Flow Meters with Displays directly measure the mass flow rate of gases in flow ranges from 0-10 sccm up to 0-50 slpm.
	www.massflowmetersandcontrollers.com /massflowmeters.htm (799 words)

	Promass 40E Coriolis Mass Flow Meter
		Reduce the cost of ownership in general purpose flow metering applications with the new PROline generation Promass 40E Coriolis mass flowmeter.
		The new mass meter hits the U.S. market in January 2001 as part of the PROline generation of flow products.
		A viable alternative to conventional mechanical or differential pressure flow metering technologies, Promass 40E offers a wider measuring range, reduced cost of ownership, more signal transmission flexibility, immunity to changing process parameters, a local display, and improved long-term stability.
	www.chemicalonline.com /Content/ProductShowcase/product.asp?navs=false&DocID={76D70683-F84B-11D4-A770-00D0B7694F32}&VNETCOOKIE=NO (216 words)

	Chemical plant design & operations - Mass flow meter (Site not responding. Last check: 2007-10-17)
		Mass flowmeters are very good and accurate for a wide variety of applications - and have even been used to replace weigh scales.
		Coriolis normally have the problem of not being self-draining, and this is a must; you have also to consider that you ought to keep a reasonably high velocity (5+ fps) and a turbulent flow to avoid settling in the sensor, whichever the plant rate.
		Foxboro has introduced a mass flow transmitter with digital technology that allows standard Coriolis flow meters to continue operating during two-phase flow, which happens when air is introduced into the liquid flow stream.
	www.eng-tips.com /viewthread.cfm?qid=108300 (979 words)

	Coriolis Mass Flow Meter handles acidic and caustic fluids Product News Network - Find Articles (Site not responding. Last check: 2007-10-17)
		FCI's Model CMM flow meter features the industry's widest standard configuration selection of the industry's most popular and exotic wetted surface materials for service in harsh fluids-from water to acids, to corrosives, and even hazardous safety sensitive fluids such as phosgene.
		The CMM flow meter's wetted surface parts are available in nine standard materials that ensure compatibility and long-life.
		The standard CMM flow meter is enclosed in a stainless steel body, with either aluminum or stainless steel covers that provide leak containment at ambient pressure and temperature conditions.
	www.findarticles.com /p/articles/mi_m0PIL/is_2005_Nov_2/ai_n15770045 (792 words)

	Flow Meters: Positive Displacement Flow Meters, Mass Coriolis Flow Meters, Turbine Flow Meters. Flow Computers and Flow ... (Site not responding. Last check: 2007-10-17)
		Flow Meters: Positive Displacement Flow Meters, Mass Coriolis Flow Meters, Turbine Flow Meters.
		Coriolis Flow Meters: Measure mass flow, density, temperature and volume of flow up to 3,000 KG/hr or 50,000 Grams/minute.
		Meter Mounted Display: Digital meter mounted flow monitors with rate and total, multiple display modes, and a large LCD display.
	www.awcompany.com.cob-web.org:8888 (373 words)

	Mass Air Flow (MAF) Meter Conversion (via CobWeb/3.1 planetlab-11.cs.princeton.edu) (Site not responding. Last check: 2007-10-17)
		The VAF uses a vane (or flapper) in the flow path of the incoming air connected to a variable resistance track to give the ECU a signal.
		A Mass Air Flow (MAF) meter is a cylinder with a small heated wire element in it.
		The MAF conversion is calibrated with the fl box to give a signal identical to what the VAF meter gave for the same air flow.
	www.teamdfl.com.cob-web.org:8888 /bmw/e28/induction/maf.html (458 words)

	Mass Flow Meter utilizes Coriolis principle., AW-Company
		Utilizing the Coriolis principle, the KCM series of flow meters are superior process control tools that allow real-time measurement of density and flow in liquids and slurries.
		The meter features no moving parts and smooth flow tubes of 316 stainless steel resulting in a design that is easy to clean and maintain.
		With the exceptional flow range capability of up to 3,000 KG/hour, priced at $2750 USD a better flow metering solution would be hard to find.
	news.thomasnet.com /fullstory/455803 (799 words)

	Bronkhorst / Products / LIQUID mass flow meter & controller technology on thermal and coriolis principle
		Bronkhorst High-Tech has been the pioneer in the field of micro to low flow liquid metering instruments based on a thermal measuring principle.
		With the introduction of the CORI-FLOW series Bronkhorst expanded their liquid flow measurement and control capacities to 600 kg/h, using a Coriolis type mass flow sensor with unsurpassed performance.
		Liquid Mass Flow Meters based on the thermal measuring principle (series L10/L20)close-coupled to pulsation free rotary positive displacement pump.
	www.bronkhorst.com /en/products/liquid_flow_meters_&_controllers (431 words)

	BMW Air Flow Mass Meter at Drivewire.com
		The BMW air mass meter is located in the engine compartment usually adjacent to the air filter assembly.
		Be very careful not to touch or get any contaminates on the electrodes on the inside of the BMW air mass meter, as this will cause the air flow meter to fail.
		If you are experiencing a repeated failure of your BMW air flow meter this may be due to the fact that you have an aftermarket performance air filter that uses an oil based filter element.
	www.drivewire.com /bmwparts/airflowmassmeter.html (310 words)

	Thermal Mass Flow Meter Brochure
		Sage Thermal Mass Flow Meters are designed for high performance mass flow measurement of flow rate and consumption of gases such as air, oxygen, natural gas, nitrogen, digester gas, bio gas, flare gas, hydrogen, argon, carbon dioxide and other gases and gas mixes.
		This ensures a clean, error-free flow signal is transferred as high resolution digital data within the Sage meter subsystems which makes the unit virtually impervious to external analog noise.
		Isolated 4-20 ma outputs of flow and temperature are standard.
	www.sagemetering.com /products.htm (319 words)

	Foxboro \| Products \| Coriolis Mass Flow Meter and Transmitter
		Our mass flow meters handle more problem fluids than anything else in their class.
		The Foxboro coriolis flow meter delivers highly accurate, direct measurement of total mass, volume mass, and concentration of dissolved substances.
		They are your meter of choice to measure the mass of conventional liquids plus non-Newtonian fluids; viscous, abrasive, and shear-sensitive fluids; slurries; and liquefied gases.
	www.foxboro.com /us/eng/products/instrumentation/flow/massflowmeters (72 words)

	Coriolis Mass Flow Meter, Flowmeter
		The CM Series mass flow meters utilize industry's well recognized high accuracy standard, Coriolis technology.
		The core operating principle of this technology is that fluids flow through a vibrating tube which then causes a deflection of the flow tube proportional to mass flow rate.
		The series is comprised of three (3) models which differ by their choices in flow range, wetted parts, accuracy, pressure ratings, density measuring, and other optional functions and features.
	www.fluidcomponents.com /Industrial/products/massflowmeters/prodcmseries.asp (227 words)

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