Distance and Weight Measurement Using Inductive Sensing Reference Design TIDA-00215 (ACTIVE)

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Key Document

Description

The Distance and Weight Measurement Using Inductive Sensing Reference Design is a sub-system design which converts a distance measurement to a weight measurement. This design is intended as a reference design for building automation and weigh scale applications. In mechanical systems, there are many situations that require precise and accurate measurements of distance. One such scenario is the conversion of a distance measurement to a weight measurement, through the use of springs with well-known characteristics. This reference design enables weight and distance measurements to be incorporated into end systems, without the use of expensive magnets or other sensing materials.

Features
  • Sensor coil input customized for mechanical system from WEBENCH® Inductive Sensing Designer
  • Calibrated sensor output from microcontroller
  • Low power consumption of 37.8 mW
  • Output resolution: 2 g
  • Typical System Error: 4.2 g (600 g to 650 g)
  • IEC61000-4-2: ESD: Air Discharge: ±8 kV Class A
  • IEC61000-4-4: EFT ±2 kV Class A

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Schematic/Block Diagram

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Design Files

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TI Devices (5)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LDC1041  8-bit Rp, 24-bit L Inductance-to-Digital Converter with SPI for Inductive Sensing Applications  Specialty sensors  Not Available Not Available
MSP430F5232  Ultra-Low Power MSP430 with 64 KB Flash  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
TMP103  1.4V-Capable Temperature Sensor with I2C/SMBus Interface in WCSP  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
TPD1E10B06  Single-channel ESD in 0402 package with 10pF capacitance and 6V breakdown  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TPS7A4101  50V Input, 50mA, Single Output Low-Dropout Linear Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LDC1041 Download
MSP430F5232 Download
TMP103 Download -
TPD1E10B06 Download Download
TPS7A4101 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 3779 28 May 2014
Design files (7)
Title Type Size (KB) Date
ZIP 409 27 Jun 2014
ZIP 11 27 Jun 2014
ZIP 900 27 Jun 2014
PDF 620 27 Jun 2014
PDF 171 27 Jun 2014
PDF 60 27 Jun 2014
PDF 252 27 Jun 2014
Related Tools & Software

Reference Designs  ( 1 )

Name Part Number Tool Type
Touch on Metal Buttons With Integrated Haptic Feedback Reference Design  TIDA-00314  TI Designs

Software (1)



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