Invention Grant
- Patent Title: Ultrasonic flow meter and excitation method
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Application No.: US15708553Application Date: 2017-09-19
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Publication No.: US11353347B2Publication Date: 2022-06-07
- Inventor: Anand Dabak , Luis Reynoso Covarrubias , Srinath Ramaswamy , Srinivas Lingam
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Mark A. Valetti; Charles A. Brill; Frank D. Cimino
- Main IPC: G01F1/66
- IPC: G01F1/66 ; G01F15/02 ; H04B11/00 ; G01F1/667

Abstract:
Disclosed examples include methods and systems to measure fluid flow, including a transmit circuit to provide a transducer transmit signal based on a transmit pulse signal, a receive circuit to receive a transducer receive signal, an ADC to sample a receive signal from the receive circuit and provide a sampled signal, and a processing circuit that computes a transit time based on the sampled signal, and provides the transmit pulse signal including a first portion with a frequency in a first frequency band, and a second portion with a second frequency outside the first frequency band to mitigate undesired transducer vibration, where the second frequency is outside a transducer frequency bandwidth of the transducer.
Public/Granted literature
- US20180274957A1 ULTRASONIC FLOW METER AND EXCITATION METHOD Public/Granted day:2018-09-27
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