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

Industrial

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Design files & products

Design files

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

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Design guide — TIDM-02003

PDF | HTML

TIDUEJ6A.PDF (2197 K)

Reference design overview and verified performance test data

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Schematic — TIDM-02003

TIDRYS5.PDF (670 K)

Detailed schematic diagram for design layout and components

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Bill of materials (BOM) — TIDM-02003

TIDRYS6.PDF (80 K)

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

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Assembly drawing — TIDM-02003

TIDRYS7.PDF (531 K)

Detailed overview of design layout for component placement

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CAD/CAE symbol — TIDM-02003

TIDRYS9.ZIP (2694 K)

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

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Gerber file — TIDM-02003

TIDCF92.ZIP (3555 K)

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

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PCB layout — TIDM-02003

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

MSP430FR5041 — 16-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

MSP430FR5043 — 16-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

MSP430FR50431 — Ultrasonic Sensing MCU with 64KB FRAM, 12KB RAM, I2C Boot Loader for flow meters

Data sheet: PDF | HTML

MSP430 microcontrollers

MSP430FR6041 — 16-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

MSP430FR6043 — Ultrasonic Sensing MCU with 64KB FRAM, 12KB RAM, LCD for gas and water metering applications

Data sheet: PDF | HTML

MSP430 microcontrollers

MSP430FR60431 — 16-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)

TPS61240 — 2.3-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)

OPA836 — Very Low Power, Rail to Rail out, Negative Rail in, VFB Op Amp

Data sheet: PDF

High-speed op amps (GBW ≥ 50 MHz)

OPA838 — 1mA, 300MHz gain bandwidth, voltage-feedback operational amplifier

Data sheet: PDF | HTML

Load switches

TPS22860 — 0.73-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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