Unit VIII microbotics

EXERCISE 1

Read and translate the text.

Microbotics (or microrobotics) is the field of miniature robotics, in particular mobile robots with characteristic dimensions less than 1 mm. The term can also be used for robots capable of handling micrometer size components.

Microbotics is that branch of robotics, which deals with the study and application of miniature ones like mobile robots of micrometre scale.

While the 'micro' prefix has been used subjectively to mean small, standardizing on length scales avoids confusion. Thus a nanorobot would have characteristic dimensions at or below 1 micrometer, or manipulate components on the 1 to 1000 nm size range. A microrobot would have characteristic dimensions less than 1 millimeter, a millirobot would have dimensions less than a cm, a minirobot would have dimensions less than 10 cm, and a small robot would have dimensions less than 100 cm.

The earliest research and conceptual design of such small robots was conducted in the early 1970s in (then) classified research for U.S. intelligence agencies. Applications envisioned at that time included prisoner of war rescue assistance and electronic intercept missions. The underlying miniaturization support technologies were not fully developed at that time, so that progress in prototype development was not immediately forthcoming from this early set of calculations and concept design. (ESL Inc., 1970)

The concept of building very small robots, and benefiting from recent advances in Micro Electro Mechanical Systems Due to their small size, microbots are potentially very cheap, and could be used in large numbers (swarm robotics) to explore environments which are too small or too dangerous for people or larger robots. It is expected that microbots will be useful in applications such as looking for survivors in collapsed buildings after an earthquake, or crawling through the digestive tract. What microbots lack in brawn or computational power, they can make up for by using large numbers, as in swarms of microbots.

Microbots were born thanks to the appearance of the microcontroller in the last decade of the 20th century, and the appearance of miniature mechanical systems on silicon (MEMS), although many microbots do not use silicon for mechanical components other than sensors.

One of the major challenges in developing a microrobot is to achieve motion using a very limited power supply. The microrobots can use a small lightweight battery source like a coin cell or can scavenge power from the surrounding environment in the form of vibration or light energy. Microrobots are also now using biological motors as power sources, such as flagellated Serratiamarcescens, to draw chemical power from the surrounding fluid to actuate the robotic device. These biorobots can be directly controlled by stimuli such as chemotaxis or galvanotaxis with several control schemes available.

Nowadays, owing chiefly to wireless connections, like Wi-Fi (i.e. in domotic networks) the microbot's communication capacity has risen, so it can coordinate with other microbots to carry out more complex tasks.

As of 2008, the smallest microrobots use a Scratch Drive Actuator.

EXERCISE 2

Say, to what degree the title can help understand the content of the text.

EXERCISE 3

Enumerate application areas of microbots.

EXERCISE 4

Divide the text into logic parts and find a sentence in each part that describes its main idea. Titletheparts.

EXERCISE 5

Make a short plan for retelling the text.

EXERCISE 6

Say in English what information is new for you and what is well known.

EXERCISE 7

What do you think is the advantage of using microbots over humonoids?

EXERCISE 8

Speak up on general trends in automation production.

EXERCISE9

Comment on the abstracts in the text describing advantages of microbots. Use active vocabulary.Exchangeopinionsaboutfacts fromthetext. Useactivevocabularyandspeechpatterns.

Example

A: Can you say a few words about microbotics history? The system finds a wide application now and has a lot of benefits. 

B: As I know, it has a brief history but... 

Possible speech patterns:

I would like to note/emphasize; to my knowledge; first of all; I want to say that,etc.