Abstract: A Coriolis mass flowmeter (300) having a low mass drive system comprising a driver coil (D) for vibrating flow tube means (102). The Coriolis mass flowmeter does not use a magnet affixed to the flow tube means. Instead, the flow tube means is coated with or is integral to magnetic material (103) that responds to the magnetic fields generated by the driver coil to vibrate the flow tube means. The flow tube means may comprise one (102) or more (1402C1, 1402C2) flow tubes. The magnetic material may be ferrous material devoid of an internal magnetic field. Alternatively the magnetic material may be steel or stainless steel having internal magnetic fields.

Abstract: A method of manufacturing a Coriolis flowmeter for the measurement of a process material requiring an ultra high level of purity. This is achieved by forming the entire flow path of the Coriolis flow meter from a PFA plastic material that does not transfer ions from the Coriolis flowmeter to the process material flowing through the flowmeter.

Abstract: A flow meter is disclosed that is comprised of a base, a driver, pick-offs, and a flow tube made from a fluoropolymer substance. The base of the flow meter is comprised of a first leg and a second leg. The first leg includes a tube opening and an adhesive opening and the second leg includes a tube opening and an adhesive opening. The flow tube passes through the tube openings of the first leg and the second leg. The tube opening of the first leg has a diameter slightly larger than the flow tube to create a gap between the tube opening and the flow tube. The adhesive opening of the first leg provides access to the gap so that adhesive may be applied to the flow tube and an inner surface of the tube opening to affix the flow tube to the base. The adhesive opening in the second leg performs the same function.

Abstract: A Coriolis flowmeter for the measurement of a process material requiring an ultra high level of purity. This is achieved by forming the entire Coriolis flowmeter of a PFA plastic material that does not transfer ions from the Coriolis flowmeter to the process material flowing through the flowmeter.

Abstract: A Coriolis flowmeter for the measurement of a process material requiring an ultra high level of purity. This is achieved by forming the entire Coriolis flowmeter of a PFA plastic material that does not transfer ions from the Coriolis flowmeter to the process material flowing through the flowmeter.

Abstract: A flow meter is disclosed that is comprised of a base, a driver, pick-offs, and a flow tube made from a fluoropolymer substance. The base of the flow meter is comprised of a first leg and a second leg. The first leg includes a tube opening and an adhesive opening and the second leg includes a tube opening and an adhesive opening. The flow tube passes through the tube openings of the first leg and the second leg. The tube opening of the first leg has a diameter slightly larger than the flow tube to create a gap between the tube opening and the flow tube. The adhesive opening of the first leg provides access to the gap so that adhesive may be applied to the flow tube and an inner surface of the tube opening to affix the flow tube to the base. The adhesive opening in the second leg performs the same function.

Abstract: A method of manufacturing a Coriolis flowmeter for the measurement of a process material requiring an ultra high level of purity. This is achieved by forming the entire flow path of the Coriolis flow meter from a PFA plastic material that does not transfer ions from the Coriolis flowmeter to the process material flowing through the flowmeter.