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7. Make pairs of words by matching a word in a to a word in b. Then complete the

sentences 1-6 with each pair.

A

B

1 accurate

2 precise

3 exact

4 forward

5 reverse

6 pole

7 detent

a arrangement

b direction

c direction

d control

e torque

f distance

g positioning

1. Without the distance formula, it is not always possible to measure the __________ if a measuring tool like the ruler is not available.

2. The diagram is showing a __________ for both windings, but many other arrangements may be used.

3. The Emotron direct torque control is a superior technique for machines requiring __________ of speed and torque.

4. __________ is a term used to describe techniques to obtain the location of an object to better than a few centimeters of accuracy.

5. __________ of electrical motors is the torque due to the interaction between the permanent magnets of the rotor and the stator slots of a Permanent Magnet (PM) machine. It is also known as cogging or 'no-current' torque.

6. The most common function of a diode is to allow an electric current to flow in the __________ and to block it in the __________.

Use of English 2: grammar

The Absolute Participial Construction

8. Paraphrase the sentences using the Absolute Participial Construction instead of italicized clauses.

1. When the work was done, they went home.

2. If the weather permits, the experiment starts early in the morning.

3. As chromium had been added, strength and hardness of the steel increased.

4. The article was published and I got my author’s fee.

5. The wood was placed in the warehouse and the wood shredding was forwarded to the factory.

6. As the professor was ill, the lecture was put off.

7. After the engineer had tested the motor, his assistants put it into operation.

Listening

9. Visit You Tube website. Go to http://www.youtube.com/watch?v=d_aTC0iKO68 and watch the video “Magnetism: Motors and Generators”. Then complete the sentences.

1. The most important applications of electromagnetic induction are …

2. A device that converts mechanical energy into electrical is …

3. Reverse conversion is performed by …

4. An electric motor consists of …

5. The component attached to a wooden support is …

6. The component fixed to the loop of copper is …

7. The component which rotates rubbing against the brushes is …

8. Rotation of the loop is produced by …

10. Watch the video again and explain how we can make an electric motor produce

electricity.

Translation

11. Find equivalents of the following phrases in the texts “Electric Motors” and “Stepper

Motors”.

1 применяются для превращения

2 различные приборы

3 преобразовывают электрическую

энергию в механическую

4 генераторы и моторы сходны

5 по определенным аспектам

6 обмотка параллельного /

последовательного подключения

7 сильное магнитное поле

8 магнитные катушки

9 достигается присоединением

10 проходящий через якорь обмотки

11 разные размеры

12 широкое применение

13 выполнять бесчисленное количество

операций

14 при любых условиях

15 скорость движения

16 применение в промышленности

17 мощное устройство

18 продолжает работать

19 широко применяются в робототехнике

20 требовать точности позиционирования

21 перемещать на точное расстояние

22 приводиться в действие импульсами

компьютера

23 работать, выполняя последователь-

ность заданных операций

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