Double sided tape should be ok. A very thin tape is preferable, so that it does not interfere with sensor performance.
SingleTact has been tested to a million cycles.
A calibrated sensor has higher accuracy and a linear output curve however calibration data is stored on the electronics, therefore the electronics cannot be used with any other sensor. The following document will explain the differences in greater detail. https://www.singletact.com/choosing-a-singletact/
Check the pin configuration. To check the Arduino is working properly with SingleTact, follow the steps in the SingleTact User Manual, Section 4.2 (Programming the Arduino UNO with SingleTact Example) (https://www.singletact.com/SingleTact_Manual.pdf). Please make sure you have followed the current steps:
Go to Tools –> Board –>Arduino UNO
Go to Tools –>Port –> COM(X) (Connected with Arduino)
The available datasheet (https://www.singletact.com/SingleTact_Manual.pdf) gives possible sensor connections and the expected capacitance range. For your application, you need to read the capacitance value. You need some form of analogue front-end (SingleTact electronics or equivalent) to convert capacitance to voltage or a digital output.
We calibrate using uniform pressure over the entire area of the SingleTact sensor head. If you place a weight on a SingleTact sensor, that weight should be a similar size to the sensor head. If the weight is off centre, then it will only compress one side of the sensor so the results will vary. See https://www.singletact.com/choosing-a-singletact/ for more details.
Yes, but it may reduce sensor performance that is why the SingleTact electronics is so small. We don’t currently offer an extension. However, we can support you if you want to fabricate your own. We can also design custom sensors for your application.
Magnetic fields do not affect the sensor readings.
The SingleTact sensor was not designed to work in condensing humid environments. However, they should function, but may not meet performance specifications.
Yes, a pull-up resistor of around 1 kΩ may be added between 5V and the SDA and SCL lines. For very long cables an I2C bus extender will be required.
The maximum allowed force per square mm = Full scale range of the sensor / Area of the sensor head N/mm2
For example: For a CS8-1N diameter sensor,
Diameter = 8mm
Full scale range = 1N
The maximum allowed force per square mm = 1/pi*42 = 0.02N/mm2
Yes. Minimum bend radius is approximately 3mm.
Force in N = ( psi output/512 ) * full scale range in N. Same applies in lb (US unit).
If you know the contact area then you can convert it from force to pressure.
Pressure = force / area.
For a CS8-1N diameter sensor, if the reading is 90, then
Pressure = (90/512) * 1 / (pi*42) = 0.0035N/mm2