Paul Z Kalotay

US Patent:

53598814, Nov 1, 1994

Filed:

Oct 21, 1993

Appl. No.:

8/140740

Inventors:

Paul Z. Kalotay - Lafayette CO
Craig B. Van Cleve - Lyons CO

Assignee:

Micro Motion, Incorporated - Boulder CO

International Classification:

G01N 1102

US Classification:

73 5406

Abstract:

A viscometer for improved sanitary measurement of the viscosity of industrial fluids. The present invention provides a viscometer integral with a flow meter or a viscometer than can be mounted onto an existing flow meter. The viscometer includes two adjacent parallel flow channels having relatively flat inner surfaces. A differential pressure element is mounted between the adjacent flow channels to sense the differential pressure between the fluid flow of the two channels. The differential pressure is input along with the mass flow rate and fluid density to calculate the fluid viscosity.

US Patent:

50276620, Jul 2, 1991

Filed:

Feb 23, 1989

Appl. No.:

7/340678

Inventors:

Joseph D. Titlow - Boulder CO
Paul Z. Kalotay - Lafayette CO

Assignee:

Micro Motion, Inc. - Boulder CO

International Classification:

G01F 184

US Classification:

7386138

Abstract:

An improved accuracy Coriolis mass flow meter. Signal processing embodiments provide improved accuracy by accounting for the non-linear relationship between phase angle difference of motion sensor signals and mass flow rate. Compensation is made for asymmetric and viscous damping effects, as well.

US Patent:

55979491, Jan 28, 1997

Filed:

Sep 7, 1995

Appl. No.:

8/524485

Inventors:

Paul Zoltan Kalotay - Lafayette CO

Assignee:

Micro Motion, Inc. - Boulder CO

International Classification:

G01N 1102

US Classification:

73 5401

Abstract:

A viscosimeter testing and calibration system (200) includes a main flow line (202), a flow diversion loop (204), a test loop (206), and a purge line (208). The flow diversion loop (204) contains a Coriolis effect viscosimeter (10). The test loop includes a tank (246) that is filled with a standard viscosity liquid (245). A process control unit (210) directs a method of system operation, which can calibrate the viscosimeter (10) without necessitating removal of the viscosimeter (10) from the system (200).

US Patent:

53478746, Sep 20, 1994

Filed:

Jan 25, 1993

Appl. No.:

8/008773

Inventors:

Paul Z. Kalotay - Lafayette CO
Joseph D. Titlow - Palos Verdes Estates CA

Assignee:

Micro Motion, Incorporated - Boulder CO

International Classification:

G01F 184
G01F 500

US Classification:

7386138

Abstract:

A mass flowmeter has a flow tube inserted within the confines of a conduit containing a material flow. Mass flow information is derived for the material flow within the conduit by generating mass flow information for the material flowing within the smaller flow tube positioned within the conduit and then by adjusting the calculations for the flow tube to represent mass flow information for the conduit. In accordance with a first embodiment of the invention, a pressurized cover is positioned around the flow tube to isolate the exterior surface of the flow tube from the material in the conduit. The space between the exterior of the flow tube and the cover is pressurized to a pressure equal to that of the material in the conduit. Both sides of the flow tube walls are at the same pressure so that a flow tube comprised of thinner and more flexible material may be used. In accordance with a second embodiment of the invention, the cover is not used and the flow tube is inserted directly into the conduit and the exterior walls of the flow tube are in contact with the material within the conduit.

US Patent:

52333124, Aug 3, 1993

Filed:

Apr 23, 1992

Appl. No.:

7/872529

Inventors:

Donald M. Duft - Boulder CO
Gerald R. Ellis - Blackhawk CO
Paul Z. Kalotay - Lafayette CO

Assignee:

Micro Motion, Incorporated - Boulder CO

International Classification:

H03F 130

US Classification:

330259

Abstract:

Sample and hold circuits are used to detect a DC component of an AC signal on an amplifier's output to generate a feedback signal that is applied to the amplifier's input to cancel out a DC component of an AC input signal. The sample and hold circuits detect the peak excursions of the AC output signal and apply the stored peaks to averaging circuitry which determines the magnitude of the DC component of the output signal.

US Patent:

53796497, Jan 10, 1995

Filed:

Dec 23, 1991

Appl. No.:

7/809146

Inventors:

Paul Z. Kalotay - Lafayette CO

Assignee:

Micro Motion, Inc. - Boulder CO

International Classification:

G01F 184

US Classification:

7386138

Abstract:

A Coriolis mass flow rate meter for measuring the mass flow rate of material flowing through a conduit. The flow meter includes at least one flow tube through which the material to be measured passes. The flow tube is vibrated at its natural frequency so that the concurrent flow of material through the vibrating tube produces a displacement of the tube with the magnitude of the displacement being dependent upon the magnitude of the generated Coriolis forces and the mass flow rate of the measured material. The phase of the displacement of the flow tube is measured using optical fiber sensors comprising at least one loop of optical fiber which is flexed by the displacement of the flow tube. This flexing of the fiber causes a corresponding change in its optical conductivity and a corresponding change in the intensity of the light transmitted through the fiber from a light signal source to a signal detector. The modulated light signal received by the optical signal detector is converted to an electrical signal which is processed to generate the mass flow rate and other information for the flowing material.

US Patent:

53219910, Jun 21, 1994

Filed:

May 25, 1993

Appl. No.:

8/066905

Inventors:

Paul Z. Kalotay - Lafayette CO

Assignee:

Micro Motion Incorporated - Boulder CO

International Classification:

G01F 184

US Classification:

7386137

Abstract:

A Coriolis effect mass flowmeter for measuring mass material flow in a conduit. Elements of the meter are clamped directly onto an existing pipe or other conduit without diversion of the flow. The meter comprises a driver, such as a magnetostrictive driver, to oscillate a section of pipe between two supports. The driver is mounted on the pipe section at or near an anti-node of the second harmonic mode of the natural frequency of the pipe section. A sensor, such as an accelerometer, is mounted onto the pipe section at the node point of the second harmonic mode of the natural frequency of the pipe section during zero flow, (zero flow node point). The second sensor measures the amplitude of displacement of the zero flow node point due to the Coriolis effect forces from the mass of the material flowing through the oscillating pipe. This measurement is indicative of the mass flow rate of the material flowing through the pipe. The meter is not dependent upon phase shift detection and is not susceptible to extraneous noise and does not require a complicated mounting.

US Patent:

54697484, Nov 28, 1995

Filed:

Jul 20, 1994

Appl. No.:

8/278547

Inventors:

Paul Z. Kalotay - Lafayette CO

Assignee:

Micro Motion, Inc. - Boulder CO

International Classification:

G01F 168

US Classification:

7386138

Abstract:

A noise reduction system and method for measuring the phase difference between output signals of a Coriolis flowmeter. The output signals are applied to signal processing circuitry having three measurement channels, each of which includes a multi-pole filter having a relatively large phase shift. A channel pair is alternately switched in successive time intervals between a calibration status and an active status. In the calibration status, the two channels are connected during one time intervals to the same input signal and the output signals of the two channels are measured to determine the inherent phase delay between the two calibration channels. The two channels are then switched during the next time interval to an active status in which they are connected separately to the two output signals from the flowmeter. The output signals of the channels are then measured and the resultant measured phase delay is algebraicly combined with the phase delay measured during the calibration status to determine the true phase delay between the two signals received from the Coriolis flowmeter.