One of the most rewarding things about experimenting with Arduino and similar systems is how many surprises there are along the way. Those who get involved with Arduino today often do so through kits that include the base computer board along with a dozen or more accessories and sensors, typically with software being included that guides owners through the usages of each. Even these kits, though, do not often expose their users to the full extent of what Arduino and other hobbyist automation systems have to offer. In fact, there are a whole host of relatively advanced parts and capabilities that most enthusiasts do not discover until much later on.pneumatic linear actuators
are almost certainly some of these. Although these parts are incredibly flexible and versatile, they tend not to be included in most beginner-level kits. There are a number of reasons for this, but the reality is that learning about how to effectively deploy a micro linear actuator can open up a whole new range of possibilities for an Arduino fan.
What micro linear actuators
focus on and excel at is exerting pushing and pulling forces on command. Although simple rotary electric motors can sometimes be rigged to accomplish such tasks, linear actuators do this in a drop-in way and typically with much greater reliability.
That is because such actuators are designed from the ground up to do one thing and do it well. In fact, as can be seen at sites like www.dclinearactuators.com where such parts are offered, manufacturers often specialize the devices even further, making them still more valuable for those who employ them.
Someone looking for a way to turn a faucet on and off as the Arduino systems directs, for example, will often find a compact linear actuator can be just the thing that is needed. In this case, an actuator that provides a lot of torque at low speeds of operation will typically make the most sense, since a faucet knob can be surprisingly unyielding when viewed from the perspective of such a small part.
On the other end of the scale, many projects will benefit more from actuators that work at much higher speeds, even if the force of each push and pull is reduced. It is possible to build a relatively simple Arduino project, for example, that incorporates a roving linear actuator to quickly enter codes into a physical keypad, and parts of this kind will up the rate of input. Learning about these trade-offs and opportunities is a big part of what makes the hobby so enjoyable, in fact.