DARK0717 Posted January 31, 2020 Posted January 31, 2020 (edited) I know that solenoids are basically electro magnets with a coil around an iron core. So, what makes a solenoid push or retact harder, higher volts or amps, or both (watts)? and if not both then what do i do to make one push really really hard? Also, how little electricity do piezos produce if i just use ambient noise to generate electricity from it? Edited January 31, 2020 by DARK0717
Strange Posted January 31, 2020 Posted January 31, 2020 4 hours ago, DARK0717 said: I know that solenoids are basically electro magnets with a coil around an iron core. So, what makes a solenoid push or retact harder, higher volts or amps, or both (watts)? and if not both then what do i do to make one push really really hard? The magnetic field is proportional to the current. But, for a given coil, the current will be proportional to voltage. So the simplest way of increase the current is to increase the voltage.
DARK0717 Posted February 1, 2020 Author Posted February 1, 2020 On 1/31/2020 at 5:45 PM, Strange said: The magnetic field is proportional to the current. But, for a given coil, the current will be proportional to voltage. So the simplest way of increase the current is to increase the voltage. Oh so i can simply just make a step up coil then connect it to the solenoid, then bam, goal achieved?
Strange Posted February 1, 2020 Posted February 1, 2020 29 minutes ago, DARK0717 said: Oh so i can simply just make a step up coil then connect it to the solenoid, then bam, goal achieved? As long as your solenoid doesn't overheat and melt!
Externet Posted February 15, 2020 Posted February 15, 2020 The coil magnetic strength is proportional from multiplying Amperes times turns. The force formula has d2 on denominator for the distance between the interacting magnetic poles (which can never be zero); then, the closer they are, the stronger the push (or pull)
John Cuthber Posted February 15, 2020 Posted February 15, 2020 (edited) On 1/31/2020 at 5:28 AM, DARK0717 said: Also, how little electricity do piezos produce if i just use ambient noise to generate electricity from it? So little that it would be quite hard to measure. The sound levels in an office are about 60 to 65 dB That's something like 10 to 30 microwatts per square metre. Edited February 15, 2020 by John Cuthber
DARK0717 Posted February 16, 2020 Author Posted February 16, 2020 On 2/15/2020 at 11:21 AM, Externet said: The coil magnetic strength is proportional from multiplying Amperes times turns. The force formula has d2 on denominator for the distance between the interacting magnetic poles (which can never be zero); then, the closer they are, the stronger the push (or pull) thanks On 2/15/2020 at 8:30 PM, John Cuthber said: So little that it would be quite hard to measure. The sound levels in an office are about 60 to 65 dB That's something like 10 to 30 microwatts per square metre. oh, i see. Thanks
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