Ultrasound sensor apparatus and method of transmitting of ultrasound
AssigneeTeknologian tutkimuskeskus VTT Oy
InventorsTeuvo Sillanpää, Cyril Karuthedath
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Abstract
An ultrasound sensor apparatus comprises at least one ultrasound transmitter, which outputs ultrasound into fluid, and a frequency controller, which receives information on temperature of the fluid and controls the frequency of the ultrasound output by the at least one ultrasound transmitter as a function of the temperature of the fluid.
Claims17
An ultrasound flow sensor apparatus, wherein the ultrasound flow sensor apparatus comprises at least one ultrasound transmitter, which is configured to output ultrasound into flowing fluid, a frequency controller, which is configured to receive information on temperature of the fluid and feedback from the at least one ultrasound transmitter, and lock a frequency of the ultrasound output to driving frequency of the at least one ultrasound transmitter in order to control the frequency of the ultrasound output by the at least one ultrasound transmitter as a function of the temperature of the fluid.
A method of transmitting of ultrasound for measuring flow, the method comprising
- outputting, by at least one ultrasound transmitter of an ultrasound sensor apparatus, ultrasound into fluid;
- receiving, by a frequency controller of the ultrasound sensor apparatus, information on temperature of the fluid and feedback from the at least one ultrasound transmitter;
- and
- controlling, by the frequency controller, the frequency of the ultrasound output by the at least one ultrasound transmitter as a function of the temperature of the fluid comprising locking a frequency of the ultrasound to driving frequency of the at least one ultrasound transmitter.
An ultrasound flow sensor apparatus, wherein the ultrasound flow sensor apparatus comprises at least one ultrasound transmitter, which is configured to output ultrasound into flowing fluid, a frequency controller, which is configured to receive information on temperature of the fluid and feedback from the at least one ultrasound transmitter, and lock a frequency of the ultrasound output to driving frequency of the at least one ultrasound transmitter to lock a sensor resonance to driving frequency in order to control the frequency of the ultrasound output by the at least one ultrasound transmitter as a function of the temperature of the fluid.
Dependencies are inferred from the claim text.