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# Design elements - Thermo

The vector stencils library "Thermo" contains 14 symbols of thermoelectric elements: thermal element, thermocouples with and without heating elements, thermoplile.
Use it for drawing electrical layouts, electronic schematics, and circuit diagrams.
"The thermoelectric effect is the direct conversion of temperature differences to electric voltage and vice versa. A thermoelectric device creates voltage when there is a different temperature on each side. Conversely, when a voltage is applied to it, it creates a temperature difference. At the atomic scale, an applied temperature gradient causes charge carriers in the material to diffuse from the hot side to the cold side.
This effect can be used to generate electricity, measure temperature or change the temperature of objects. Because the direction of heating and cooling is determined by the polarity of the applied voltage, thermoelectric devices can be used as temperature controllers.
The term "thermoelectric effect" encompasses three separately identified effects: the Seebeck effect, Peltier effect, and Thomson effect. Textbooks may refer to it as the Peltier–Seebeck effect. ...
Thermocouples and thermopiles are devices that use the Seebeck effect to measure the temperature difference between two objects, one connected to a voltmeter and the other to the probe. The temperature of the voltmeter, and hence that of the material being measured by the probe, can be measured separately using cold junction compensation techniques." [Thermoelectric effect. Wikipedia]
The shapes example "Design elements - Thermo" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Thermoelectric elements
Used Solutions

## Design elements - Thermo

The vector stencils library "Switches" contains 25 symbols of electrical and light switches and breakers.
"In electrical engineering, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another.
The most familiar form of switch is a manually operated electromechanical device with one or more sets of electrical contacts, which are connected to external circuits.
A switch may be directly manipulated by a human as a control signal to a system, ... or to control power flow in a circuit, such as a light switch. Automatically operated switches can be used to control the motions of machines, for example, to indicate that a garage door has reached its full open position or that a machine tool is in a position to accept another workpiece. Switches may be operated by process variables such as pressure, temperature, flow, current, voltage, and force, acting as sensors in a process and used to automatically control a system. For example, a thermostat is a temperature-operated switch used to control a heating process. A switch that is operated by another electrical circuit is called a relay." [Switch. Wikipedia]
Use the design elements library "Switches" for drawing light switches layouts, electrical and telecommunication equipment floor plans for building design and construction using the ConceptDraw PRO diagramming and vector drawing software.
The shapes library "Switches" is included in the Electric and Telecom Plans solution from the Building Plans area of ConceptDraw Solution Park.
Electrical switch symbols
Used Solutions

## Design elements - Thermo

The vector stencils library "Electron tubes" contains 36 element symbols of electron tubes.
Use it for drawing electrical schematics and electronic circuit diagrams in the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-electrical
Diode, directly heated
Diode, indirectly heated
Diode, envelope, direct. heated
Diode, envelope, indirect. heated
Triode, directly heated
Triode, indirectly heated
Triode, envelope, direct. heated
Triode, envelope, indirect. heated
Tetrode, directly heated
Tetrode, indirectly heated
Tetrode, envelope, direct. heated
Tetrode, envelope, indirect. heated
Pentode, directly heated
Pentode, indirectly heated, external connection
Pentode, indirectly heated, internal connection
Pentode, envelope, direct. heated
Pentode, envelope, indirect. heated, external connection
Pentode, envelope, indirect. heated, internal connection
Diode, directly heated 2
Diode, indirectly heated 2
Diode, envelope, direct. heated 2
Diode, envelope, indirect. heated 2
Triode, directly heated 2
Triode, indirectly heated 2
Triode, envelope, direct. heated 2
Triode, envelope, indirect. heated 2
Tetrode, directly heated 2
Tetrode, indirectly heated 2
Tetrode, envelope, direct. heated 2
Tetrode, envelope, indirect. heated 2
Pentode, directly heated 2
Pentode, indirectly heated, external connection 2
Pentode, indirectly heated, internal connection 2
Pentode, envelope, direct. heated 2
Pentode, envelope, indirect. heated, external connection 2
Pentode, envelope, indirect. heated, internal connection 2
Used Solutions