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I want to use microcontroller - STM32C011F6P3TR.
As mentioned in datasheet, it has internal 48 MHz RC oscillator (±1 % accuracy).Can I use this microcontroller without using external crystal for USART communication at baudrates up to 57600?I want to reduce number of external parts to save...
I am sure they do not have direct torque measurement. I think these tools are calibrated, depending on measured current, but also has a compensation curve which depends on motor voltage and/or speed. So when temperature of the windings rises, we could know that from measured voltage/speed and...
But it is very interesting, because I have analyzed two electric nutrunners tools (available on a market) on a torque testing equipment and they everytime wrenches at the same torque with an accuracy of 1-2%. They also have geared reductors and a circuit which measure current (Also temperature).
Thanks. My tool which is under design has speed reduction with a gears. But I think not valid when winding temperature increases or decreases what causes changes in resistance. Let say I calibrate my tool using calibration equipment at 30*C i.e.:
I=5A, T=600Nm
I=6A, T=700Nm
...
My calibration...
Hello,
First of all, sorry for my english, which is not my first language. I am currently making a design of AC universal motor (series motor) as a nutrunner (torque wrencher) for bolts wrenching at adjusted known torque. I would like to calculate a load torque using electric parameters such as...
Hello,
I have AC universal motor and I would like to calculate motor load torque.
I have power metering IC and I can measure current, voltage and power of motor circuit. Also I have motor speed feedback.
Please let me know if it is enough to calculate aprox. motor load torque, using equation...
Hello,
I am looking for a simple wind flow sensor based on a NTC 10k thermistor. I need to measure wind speed up 20m/s. The idea is to internally heat thermistor with power supply i.e. 10V. Maybe somebody have done similar circuit for a wind flow sensing?
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