Thank you very much for finding this error! I've written the corrected description of F1 below:
F1 is the pressure inside of the chamber pressing upwards on the bottom of the valve armature plate (14mm radius) excepting the 4mm radius of the armature shaft:
F1 = Plow * \pi * (142 - 42)...
This is a clearer, better drawn, and shorter version of a question I asked a few days ago. I apologize for not initially reducing it to this state - sometimes when reducing a question to its essence I stop too soon!
The diagram below shows two cross-sections of an axis-symmetric cylindrical...
Kyle,
Since you've been working on this for a while I would check the battery to see if it is still alive. You would set your meter to the smallest D.C. Volts scale that is still larger than your battery's normal working voltage. Put the red lead of the meter on the + (positive) terminal of...
Hard to fault your reasoning! A voltage-free circuit is the EE's version of: "If a tree falls in the forest, and there's no one there to hear it, does it make a noise?"
I'm not familiar with U.K. wiring code (law) but I would like to mention that there is a class of cable called "plenum cable" that is recommended/required for wire running through ducts and other communicating spaces. The key feature of plenum cable is the chemistry of its insulation: it is...
Unlike the small signal model of a BJT, a current-oriented device, which probably preceeded your current study of op-amps, the op amp is a voltage-oriented device. This may explain some of the confusion you're feeling!
In the ideal (perfect) op-amp model the internal gain, often called the...
Part of a new product we're designing needs a small iron-core D.C. electromagnet for an actuator. I designed the electromagnet's core to be circular: about 4.5mm in diameter with 200 Ampere-Turns in the coil. An axis-symmetric FEA showed the iron core to be near saturation, and producing a...
I can really only think of two design parameters that limit the range of use in a particular protocol: latency and reliable propagation.
Latency is key in Carrier Sense Multiple Access protocols, where any node can initiate a transmission at any time. Arbitration of the network is handled...
I've designed a linear motor somewhat similar to what you need, although capable of much less power. Here are some thoughts to try and help:
1. Your acceleration requirements are commercially achievable, but your power output requirements are very high.
2. Your stroke length (1cm) is...