Ultrasonic Transducer Cable Sharing Temperature Signals
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Solution Overview
Problem
Conventional ultrasonic measurement systems face challenges in accurately monitoring pipe wall thinning due to temperature-dependent ultrasonic wave speed, requiring additional wiring for temperature compensation, which is costly and labor-intensive, especially in harsh and confined industrial environments.
Innovation Solution
An ultrasonic measurement system utilizing a two-conductor cable to transmit both ultrasonic pulses and temperature signals, with a controller that generates pulses for the ultrasonic transducer and instructs a temperature measurement system, allowing for temperature compensation without additional wiring, by determining the object's thickness based on echo wave timing and temperature signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a dedicated cable is used for temperature sensing, then temperature measurement accuracy is improved, but installation cost and labor are increased
Solution Approach 1:
The patent combines the ultrasonic transducer cable and temperature sensor cable into a single integrated cable assembly. The temperature sensor is mounted on the ultrasonic transducer, allowing both ultrasonic signals and temperature data to be transmitted through shared conductors, thereby reducing the number of separate cables needed while maintaining measurement accuracy
Solution Approach 2:
The integrated cable serves multiple functions: it transmits ultrasonic pulses from the transducer, carries echo signals back to the measurement device, and simultaneously conveys temperature sensor data. This multi-functional cable reduces installation complexity while preserving the precision of both ultrasonic thickness measurement and temperature compensation
2Measurement precision
If temperature compensation is implemented, then measurement accuracy is improved, but system complexity is increased
Solution Approach 1:
The ultrasonic transducer assembly is designed to self-measure its own temperature through an integrated temperature sensor. This self-service capability eliminates the need for separate temperature monitoring equipment or manual temperature input, automatically providing temperature compensation data to correct ultrasonic velocity variations and improve thickness measurement accuracy
Solution Approach 2:
The system implements a feedback mechanism where the temperature sensor continuously monitors the transducer temperature, and this temperature data is used by the measurement device to adjust the ultrasonic velocity parameter. This closed-loop feedback ensures accurate thickness measurements by dynamically compensating for temperature-induced velocity changes
3Adaptability or versatility
If additional temperature sensing equipment is added, then temperature compensation capability is improved, but installation time and labor are increased
Solution Approach 1:
The temperature sensor is physically integrated with the ultrasonic transducer assembly, combining two separate functions (ultrasonic measurement and temperature sensing) into a single unit. This integration means that one installation process accomplishes both functions simultaneously, eliminating the need for separate mounting procedures and reducing overall installation time
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate, cost-effective, and labor-efficient temperature compensation for ultrasonic wall thickness measurements in industrial settings, reducing wiring costs and simplifying installation and maintenance.
Implementation Method 1
an ultrasonic transducer including a piezoelectric element
Implementation Method 2
determining the thickness of the object based on timing of the entry echo wave, timing of the back wall echo wave
Implementation Method 3
a temperature sensor to determine a temperature of the object adjacent the ultrasonic transducer
Data Source
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AI summary
An ultrasonic measurement system includes a base apparatus, an ultrasonic transducer remote from the base apparatus, a temperature sensing system remote from the base apparatus, and an electrical cable. The base apparatus includes a power supply, a pulse transmitter/receiver; and a base apparatus controller operatively connected to the power supply and the pulse transmitter/receiver. The ultrasonic transducer includes a piezoelectric element. The temperature sensing system includes a temperature measurement instrument operatively connected to a temperature sensor. The electrical cable includes first and second electrical conductors with the first and second conductors electrically connecting the base apparatus, the ultrasonic transducer, and the temperature sensing system. A method of measuring a thickness of an object and a further measurement system are also provided.