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US 4,381,674 AGranted
Ultrasonic detecting and identifying of particulates
AssigneeMicro Pure Systems, Inc.
InventorLeigh R. Abts
Life of this patent
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Abstract
A method of detecting and identifying particulates in the recirculating fluid flow for an oil recovery system by counting the number of ultrasonic pulses reflected from the particulates and comparing the number counted with the amount of attenuation of ultrasonic energy across the flow.
Claims9
A method of identifying solid particles in a flow in an oil recovery system comprising:
- sending ultrasonic pulses across the flow,
- detecting and counting the reflections of ultrasonic energy from particulates in the flow,
- comparing the number of reflections with the amount of attenuation of ultransonic pulses across the flow, thereby determining the percentage of particulates which are solid particles.
A particulate identification apparatus comprising,
- means for transmitting an ultrasonic pulse into a flow containing particulates,
- means for receiving and counting reflected ultrasonic pulses from said particulates,
- means for measuring the attenuation of ultrasonic pulses across the flow, and
- means for comparing the number of counted pulses with the attenuation to determine the percentage of particulates which are solid particles.
1 more element
Dependencies are inferred from the claim text.