Cheaper Alternative to FlexiForce Sensor

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SUMMARY

The discussion centers on finding a cost-effective alternative to the FlexiForce 1lb sensor, priced at $20.00 each. Participants suggest exploring CUI's pressure sensors, although initial inquiries indicate that they may require large orders and could be more expensive than FlexiForce. Additionally, the conversation highlights that inexpensive digital scales typically utilize resistive strain gauge sensors to measure weight, which operate similarly to FlexiForce sensors, but should not be confused with load cells.

PREREQUISITES
  • Understanding of resistive strain gauge sensors
  • Familiarity with digital scale technology
  • Knowledge of pressure sensor applications
  • Basic concepts of load cells and their differences from strain gauges
NEXT STEPS
  • Research CUI pressure sensors and their pricing structure
  • Investigate the specifications and applications of resistive strain gauge sensors
  • Explore the functionality and accuracy of digital scales
  • Learn about the differences between load cells and strain gauge sensors
USEFUL FOR

Engineers, product designers, and hobbyists seeking affordable sensor alternatives for weight measurement applications.

geolej
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Is there a alternative to the FlexiForce 1lb sensor. $20.00 a piece is rather high for my project, seeing how I will need multiple ones. Any ideas?
 
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You could try CUI, but i don't know how much their pressure sensors might run you:
http://www.cui.com/
 
I gave them a call, the impression I got is I would need a huge order and is far more expensive than the FlexiForce. How is weight mesuared in those cheap digital scales? I am sure those are accurate enough for my purposes.
 
Electronic scales usually use some type of resistive strain gauge sensor to measure the displacement in a structure and back calculate the force from that which is similar to how the flexiforce things work. This should not be confused with a load cell.
 

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