jjohn33
Simpler Force Sensor: Using Liquid Oil-Filled Chamber and Pressure Sensor
- Context: Automotive
- Thread starter jjohn33
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The "sensor" shown in your figure might have a membrane inside doing just what you described. It depends on the make and model of sensor. There are many ways to do it.
jjohn33
The green part should be a thin movable steel membrane that is connected to a rod and that rod has eg 300N applied force.
The sensor transforms that force to a pressure
That was my idea,
The sensor transforms that force to a pressure
That was my idea,
jjohn33
Do you have some example to do this?
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jjohn33 said:
What design are you hoping this concept will be "simpler" than? A piezoelectric force sensor is pretty simple considering it has no moving parts and a direct connection to an electrical circuit for logging.
See here: https://en.wikipedia.org/wiki/Piezoelectric_sensor
jjohn33
Ok thanks can it handel force for 300-400N?
Do you know some manufacturers?
Do you know some manufacturers?
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jjohn33 said:
There are literally hundreds of options out there because this is a very common measurement need. I'd recommend doing some searching on a product comparison directory like IEEE GlobaSpec for a start, see here: IEEE GlobaSpec Search: Force Sensors.
Omega sells a lot of different sensors, including ones in your operating range. Take a look here: https://www.omega.com/section/load-cells-force-sensors-torque.html
jjohn33
Thank you I will read it
jjohn33
But if I have a constant force at e.g. 300N for couple of minutes < 10 min I thougt the piezoelectric sensors maybe cannot measured that constant load?
MRFMengineer
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You may want to look into piezoresistive based load sensors as well, typically more optimized for DC loads like you mentioned.