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Low-level measurement methods
Müller, Tomáš ; Steinbauer, Miloslav (referee) ; Fiala, Pavel (advisor)
This bachelor thesis discuss about low-level measurement methods. Also is outline the method, how to proceed in lay-out of measurement system and in selection of measurement device and its accessories. Thereinafter is stated the calculation of mistakes and in recent time also the calculation of often use mazes. Without them would be not the result total. Next part of this bachelor theses pointed to practical measurement in the area of low level current and voltage, where are shown and described wiring types used for these measurements. Next chapters discuss about measurement principles low level electric current and voltage. Than try to point to appearance, which indisposed participace on measurement accuracy and try to introduce with steps, which helps to reduce this effects. These voltages and currenties are in normal measurement insignificant, but in the low-levels influence they the result too much. Thereinafter is described the principle of measuring amplifier and closer mentioned parameters and usage of instrumentation amplifier with ultra low input bias current INA 116. Next to last point of this bachelor thesis is an example of usage this network in measurement with gerdien condenser. Therein is clarify its physical principle and proposal parameters. In the last part is described the air ions concentration measurement with gerdien condenser. Also are described the results of measurement and results of this.
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Measurement of air ion concetration
Kudlička, Petr ; Čech, Petr (referee) ; Rozman, Jiří (advisor)
This work evaluates effect of air ions on the environment. There is a part about ions’ production. There are named some techniques of air ions measurement and their comparison. Apparatus of air ions concentration measurement is described in block diagram. There are electrical wiring diagram and list of used components.
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Ion fields measurement
Svozil, Radek ; Szabó, Zoltán (referee) ; Steinbauer, Miloslav (advisor)
The aim of this semester project is the introduction to the problematic of ion fields, where and under what circumstances they originate and extinct and the techniques of measurement. The project will deal with the atmosphere and the electrical field of the Earth. I will consider the composition of the atmosphere and the principles of origin and extinction of ions. I am going to mention the division of ions and their influence on the living organisms. Another topic to be dealt with is the methods for measuring the air ions and the small currents. Gradually we are going to learn the known methods of the measuring of air ions. We are going to get a closer look at the method of measuring with the cylindrical aspiration capacitor. We are also going to deal with the problem of measuring very low currents, where they originate and how it is possible to compensate them. The outcome of the project should be the concept and later the creation of the sonde for the measuring of the ion fields itself.
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Measurement of air ion concetration
Kudlička, Petr ; Čech, Petr (referee) ; Rozman, Jiří (advisor)
This work evaluates effect of air ions on the environment. There is a part about ions’ production. There are named some techniques of air ions measurement and their comparison. Apparatus of air ions concentration measurement is described in block diagram. There are electrical wiring diagram and list of used components.
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|
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Ion fields measurement
Svozil, Radek ; Szabó, Zoltán (referee) ; Steinbauer, Miloslav (advisor)
The aim of this semester project is the introduction to the problematic of ion fields, where and under what circumstances they originate and extinct and the techniques of measurement. The project will deal with the atmosphere and the electrical field of the Earth. I will consider the composition of the atmosphere and the principles of origin and extinction of ions. I am going to mention the division of ions and their influence on the living organisms. Another topic to be dealt with is the methods for measuring the air ions and the small currents. Gradually we are going to learn the known methods of the measuring of air ions. We are going to get a closer look at the method of measuring with the cylindrical aspiration capacitor. We are also going to deal with the problem of measuring very low currents, where they originate and how it is possible to compensate them. The outcome of the project should be the concept and later the creation of the sonde for the measuring of the ion fields itself.
|
|
|
Low-level measurement methods
Müller, Tomáš ; Steinbauer, Miloslav (referee) ; Fiala, Pavel (advisor)
This bachelor thesis discuss about low-level measurement methods. Also is outline the method, how to proceed in lay-out of measurement system and in selection of measurement device and its accessories. Thereinafter is stated the calculation of mistakes and in recent time also the calculation of often use mazes. Without them would be not the result total. Next part of this bachelor theses pointed to practical measurement in the area of low level current and voltage, where are shown and described wiring types used for these measurements. Next chapters discuss about measurement principles low level electric current and voltage. Than try to point to appearance, which indisposed participace on measurement accuracy and try to introduce with steps, which helps to reduce this effects. These voltages and currenties are in normal measurement insignificant, but in the low-levels influence they the result too much. Thereinafter is described the principle of measuring amplifier and closer mentioned parameters and usage of instrumentation amplifier with ultra low input bias current INA 116. Next to last point of this bachelor thesis is an example of usage this network in measurement with gerdien condenser. Therein is clarify its physical principle and proposal parameters. In the last part is described the air ions concentration measurement with gerdien condenser. Also are described the results of measurement and results of this.
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