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Прочитайте текст Pyroelectric infra-red sensors consist of a ceramic element an alumina substrate an...: ответ на тест 781469 - Английский язык

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Pyroelectric infra-red sensors consist of a ceramic element, an alumina substrate and a circuit with field effect transistors (FET) and strong resistance, a window material.
To attain excellent sensitivity in a pyroelectric sensor, it is essential to make the pyroelectric element thin enough for a low-heat capacity. The engineers also must work out a specific sensor structure for little heat dissipation.
A pyroelectric infra-red sensor is using a conductive bonding agent to fix the pyroelectric element to the lead terminals of the stem. As a result, the clearance between the element and the alumina substrate holding the circuit remains constant, a construction that avoids heat dissipation. The element itself is between 50 and 100 µm thick, to offer appropriate heat capacity and handling ease.
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The engineers must work out a specific sensor structure for __________________.
Варианты ответов
  • the lead terminals of the stem
  • a conductive bonding agent
  • little heat dissipation
  • the pyroelectric element
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Вопрос задал(а): Анонимный пользователь, 13 Ноябрь 2020 в 01:29
На вопрос ответил(а): Анастасия Степанова, 13 Ноябрь 2020 в 01:29

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Вопрос № 605396

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Pyroelectric infra-red sensors consist of a ceramic element, an alumina substrate and a circuit with field effect transistors (FET) and strong resistance, a window material.
To attain excellent sensitivity in a pyroelectric sensor, it is essential to make the pyroelectric element thin enough for a low-heat capacity. The engineers also must work out a specific sensor structure for little heat dissipation.
A pyroelectric infra-red sensor is using a conductive bonding agent to fix the pyroelectric element to the lead terminals of the stem. As a result, the clearance between the element and the alumina substrate holding the circuit remains constant, a construction that avoids heat dissipation. The element itself is between 50 and 100 µm thick, to offer appropriate heat capacity and handling ease.
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a conductive bonding agent
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Вопрос № 912164

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Другие вопросы по предмету Английский язык

Вопрос № 781470

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The word computer comes from a Latin word which means to count. A computer is a machine with a complex network of electronic circuits that operate switches or magnetize tiny metal cores. The switches, like the cores, are capable of being in one of two possible states, that is, on and off; magnetized or demagnetized. The machine is capable of storing and manipulating numbers, letters, and characters. The basic idea of the computer is that we can make the machine do what we want by inputting signals that turn certain switches on and turn others off, or that magnetize or do not magnetize the cores.
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Вопрос № 781471

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The basic job of computers is the processing of information. For this reason, computers can be defined as devices which accept information in the form of instructions called a program and characters called data, perform mathematical and/or logical operations on the information, and then supply results of these operations. The program, or part of it, which tells the computers what to do and the data, which provide the information needed to solve the problem, are kept inside the computer in a place called memory.
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The basic job of computers is the processing of __________________.

Вопрос № 781472

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Some of the most common methods of inputting information are to use punched cards, magnetic tape, disks, and terminals. The computer’s input device (which may be a card reader, a tape drive or disk drive, depending on the medium used in inputting information) reads the information into the computer.
For outputting information, two common devices used are a printer which prints the new information on paper, or a CRT display screen which shows the results on a TV-like screen.
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Вопрос № 781473

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There are some computers that can do _____________________.
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