Ultrasonic Water Flow Measurement Reference Design

(ACTIVE) TIDM-ULTRASONIC-WATER-FLOW-MEASUREMENT

Description & Features

Technical Documents

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Key Document

Description

This Ultrasonic Water Flow Measurement system is ideal for providing highly accurate measurement across wide flow ranges as low as 1.4gpm. The design is based on a single MCU with discrete analog components. It uses a unique propriety algorithm that improves robustness and performance in flow measurement across wide range of operating conditions. This design is fully compatible with TI RF plug-in evaluation modules for wireless AMI networks.

Features
  • Ultra low power ~ 20 years lifetime with battery
  • ADC based approach, meets ISO 4064-1 EEC applicable norms
  • Robust to signal amplitude variations – insensitive to received signal amplitude
  • Allows low power implementation with optimized signal processing
  • Supports Sub-1GHz and 2.4GHz RF wireless communication modules
  • Integrated low-power segment LCD controller

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Schematic/Block Diagram

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Design Guide

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Bill of Materials (BOM)

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
MSP430FR6972  MSP430FR6972 16 MHz Ultra-Low-Power MCU featuring 64 KB FRAM, 2 KB SRAM, 51 IO, ADC12, LCD, AES  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC2T45  2-Bit Dual Supply Transceiver with Configurable Voltage-Level Shifting and 3-State Outputs  Voltage level translation  Sample & Buy View Design Kits & Evaluation Modules
THS4521  Very low power rail-to-rail output fully differential amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TS5A63157  15-Ohm SPDT Analog Switch 5-V/3.3-V Single-Channel 2:1 Multiplexer/Demultiplexer  Switches & multiplexers  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
MSP430FR6972 Download Download
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SN74LVC2T45 Download Download
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THS4521 Download Download
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TS5A63157 Download Download
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 2151 06 Jul 2015 120
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 81 11 Sep 2015 21
ZIP 214 11 Sep 2015 28
ZIP 399 11 Sep 2015 13
PDF 91 11 Sep 2015 16
PDF 99 11 Sep 2015 27
PDF 57 11 Sep 2015 52
Related Tools & Software

Software (1)



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