TIDM-02003

Ultrasonic sensing subsystem reference design for gas flow measurement

TIDM-02003

Design files

Overview

This reference design helps designers develop an ultrasonic gas-metering subsystem using an integrated, ultrasonic sensing solution (USS) module, which provides superior metrology performance with low-power consumption and maximum integration. The design is based on the 64KB MSP430FR6043 microcontroller (MCU) with integrated high-speed, ADC-based signal acquisition and an integrated low-energy accelerator (LEA) to optimize digital signal processing.

Features
  • Best-in-class metrology performance: +/-250ps zero flow drift (ZFD) and 500ps single-shot standard deviation (STD)
  • Low power consumption: <20 uA across 200-kHz to 500-kHz transducers with one set of comprehensive results per second 
  • ±1% flow accuracy up to 12,000 lph with dynamic range of 200:1
  • Three lph minimum detectable flow rate
  • Robust performance against variation of transducer characteristics over temperature
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Design files & products

Design files

Download ready-to-use system files to speed your design process.

PDF | HTML
TIDUEJ6A.PDF (2197 K)

Reference design overview and verified performance test data

TIDRYS5.PDF (670 K)

Detailed schematic diagram for design layout and components

TIDRYS6.PDF (80 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRYS7.PDF (531 K)

Detailed overview of design layout for component placement

TIDRYS9.ZIP (2694 K)

Files used for 3D models or 2D drawings of IC components

TIDCF92.ZIP (3555 K)

Design file that contains information on physical board layer of design PCB

TIDRYS8.PDF (3249 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

MSP430 microcontrollers

MSP430FR504116-MHz MCU with 32 KB FRAM, 12-bit high speed 8 MSPS sigma-delta ADC and integrated sensor AFE

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR504316-MHz MCU with 64 KB FRAM, 12-bit high speed 8-MSPS sigma-delta ADC and integrated sensor AFE

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR50431Ultrasonic Sensing MCU with 64KB FRAM, 12KB RAM, I2C Boot Loader for flow meters

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR604116-MHz MCU with 32-KB FRAM, LCD, 12-bit high speed 8-MSPS sigma-delta ADC and integrated sensor AFE

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR6043Ultrasonic Sensing MCU with 64KB FRAM, 12KB RAM, LCD for gas and water metering applications

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR6043116-MHz MCU with 64-KB FRAM, LCD, 12-bit high speed 8-MSPS sigma-delta ADC and integrated sensor AFE

Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)

TPS612402.3-V to 5.5-V input range, 3.5-MHz fixed frequency 450-mA boost converter

Data sheet: PDF | HTML
High-speed op amps (GBW ≥ 50 MHz)

OPA836Very Low Power, Rail to Rail out, Negative Rail in, VFB Op Amp

Data sheet: PDF
High-speed op amps (GBW ≥ 50 MHz)

OPA8381mA, 300MHz gain bandwidth, voltage-feedback operational amplifier

Data sheet: PDF | HTML
Load switches

TPS228600.73-Ω, 5-V, ultra-low leakage load switch

Data sheet: PDF | HTML

Start development

Hardware

Evaluation board

EVM430-FR6043 — MSP430FR6043 ultrasonic sensing evaluation module

The EVM430-FR6043 evaluation kit is a development platform that can be used to evaluate the performance of the MSP430FR6043 for ultrasonic sensing applications (e.g. Smart Gas Meters). The MSP430FR6043 MCU is an ultra-low-power MCU that integrates an ultrasonic sensing analog front end (USS) for (...)
User guide: PDF
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Technical documentation

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Type Title Date
* Design guide Ultrasonic Sensing Subsystem Reference Design for Gas Flow (TIDM-02003) (Rev. A) PDF | HTML Jul. 13, 2022
Application note Gas Meter Design Guide Oct. 28, 2020
Application note Oxygen Concentration Sensing PDF | HTML Oct. 14, 2020
Application note High-Resolution Anemometers Oct. 02, 2020
Application note Ultrasonic Surface Sensing Sep. 25, 2020

Related design resources

Software development

DRIVER OR LIBRARY
MSP-ULTRASONIC-DESIGN-CENTER MSP430 MCUs Ultrasonic Sensing Design Center

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