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Electronic Basics #33: Strain Gauge/Load Cell and how to use them to measure weight

2017-12-03

[public] 1.28M views, 18.3K likes, dislikes audio only

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You can get Strain Gauges, Load Cells and the HX711 IC here (affiliate links):

Aliexpress:

Strain Gauge: https://s.click.aliexpress.com/e/_d6QP1JD

Load Cell: https://s.click.aliexpress.com/e/_dTfcEsR

HX711: https://s.click.aliexpress.com/e/_dXemYqT

Ebay:

Strain Gauge: http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub=5575101368&toolid=10001&campid=5337582279&customid=&icep_item=142533264958&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg

Load Cell: http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub=5575101368&toolid=10001&campid=5337582279&customid=&icep_item=172442136742&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg

HX711: http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub=5575101368&toolid=10001&campid=5337582279&customid=&icep_item=182696799101&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg

Amazon.de:

Strain Gauge: http://amzn.to/2BGbEIg

Load Cell: http://amzn.to/2npyuks

HX711: http://amzn.to/2khmhxh

In this episode of electronic basics we will have a closer look at strain gauges and load cells and find out how we can use them to measure weight. Along the way we will talk about the wheatstone bridge, suitable amplifier circuits and how we can use a µC to output the measured values of our weight measuring system.

Music:

2011 Lookalike by Bartlebeats

Killing Time, Kevin MacLeod

(incompetech.com)


Intro
/youtube/video/lWFiKMSB_4M?t=0
Strain Gauge
/youtube/video/lWFiKMSB_4M?t=73
Wheatstonebridge
/youtube/video/lWFiKMSB_4M?t=152
Temperature Sensitivity
/youtube/video/lWFiKMSB_4M?t=211
Load Cell
/youtube/video/lWFiKMSB_4M?t=274
Electronics & Water? What could possibly go wrong? 1,057,480 views
/youtube/video/pGLUsQozT94
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