- #1
Simpler Force Sensor: Using Liquid Oil-Filled Chamber and Pressure Sensor
- Automotive
- Thread starter jjohn33
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- Force Force applied Sensor
In summary, the conversation discusses the possibility of using a liquid oil filled sealed chamber with a movable membrane connected to a pressure sensor to measure forces applied to the membrane. The conversation also mentions the use of a piezoelectric force sensor and suggests looking into alternative options like piezoresistive based load sensors for measuring constant loads. Various manufacturers and resources are suggested for further research.
- #2
anorlunda
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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.
- #3
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,
- #4
jjohn33
Do you have some example to do this?
- #5
Mech_Engineer
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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
- #6
jjohn33
Ok thanks can it handel force for 300-400N?
Do you know some manufacturers?
Do you know some manufacturers?
- #7
Mech_Engineer
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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
- #8
jjohn33
Thank you I will read it
- #9
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?
- #10
MRFMengineer
- 83
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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.
Related to Simpler Force Sensor: Using Liquid Oil-Filled Chamber and Pressure Sensor
1. What is a simpler force sensor?
A simpler force sensor is a device that measures the amount of force being applied to it. It is designed to be easy to use and does not require complex equipment or procedures.
2. How does a liquid oil-filled chamber work in a force sensor?
In a liquid oil-filled chamber, the force being applied to the sensor causes the liquid to flow and exert pressure on a pressure sensor. This change in pressure is then converted into an electrical signal which can be measured and used to determine the force being applied.
3. What are the advantages of using a liquid oil-filled chamber in a force sensor?
One advantage is that it allows for a wider range of forces to be measured, as the liquid can easily adjust to changes in force. It also provides a more accurate and consistent measurement compared to other methods.
4. Can a simpler force sensor be used in various applications?
Yes, a simpler force sensor can be used in a variety of applications such as measuring weight, force exerted by a person or object, and even in industrial settings for quality control and safety purposes.
5. Is the simpler force sensor easy to maintain and calibrate?
Yes, the simpler force sensor is relatively easy to maintain and calibrate. Regular cleaning and calibration can ensure accurate and consistent measurements over time.
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