Basic Electrical Training 3
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Eine Wheatstone-Brücke, z. B. aus Dehnungsmessstreifen, liefert unter Belastung eine differenzielle Spannung von Udiff=150 μV. Diese Spannung wird mit einem Instrumentationsverstärker verstärkt. Der Verstärkungsfaktor ist auf 1000 eingestellt. Allerdings besitzt der Instrumentationsverstärker einen Eingangsoffset von Uos=30 μV, der ebenfalls mit der Verstärkung berücksichtigt wird. Berechne die ideale Ausgangsspannung Uout,ideal in mV wenn der Eingangsoffset vernachlässigt wird. / A Wheatstone bridge, e.g. made of strain gauges, supplies a differential voltage of Udiff=150 μV under load.This voltage is amplified with an instrumentation amplifier. The amplification factor is set to 1000. However, the instrumentation amplifier has an input offset of Uos=30 μV, which is also taken into account with the amplification. Calculate the ideal output voltage Uout,ideal in mV if the input offset is neglected.
Calculate the Value of the Bandwidth in Hz. (incl. Unit)
Calculate the Value of the lower corner frequency in Hz. (incl. Unit)
Calculate the Value of the upper corner frequency in Hz. (incl. Unit)
Calculate the Value of the resonance frequency f0in Hz. (incl. Unit)
Calculate the Value of |XC| in 1/Fs. (incl. Unit)
Calculate the Value of |XL| in H/s. (incl. Unit)
Please enter the results of Task 1 here.
When you want to have a duty cycle of 90% and a frequency of the rectangular signal of 100 Hz, with C set to 5.8 uF the value for Resistor R2 is , R1 is
When you want to have a duty cycle of 75% and a frequency of the rectangular signal of 100 Hz, with C set to 580 nF the value for Resistor R2 is , R1 is
When you want to have a duty cycle of 55% and a frequency of the rectangular signal of 100 Hz, with C set to72.5 nF the value for Resistor R2 is , R1 is
Please answer all parts of the question.Create a Circuit for an NE555 in Astable Operation Mode with a frequency of 100Hz and a duty cycle of 75%.
Do this in the following steps and record measurements with a multimeter in the simulation as you go along:
Select R2, R1 and C according to your calculations from the previous part. Use 1µF
Place R2, R1 and C onto a breadboard and connect them as in the circuit diagram above to a voltage source (use a 9V Battery). • The voltage between the Ground and the connection between R1 and R2 is Volts
The voltage between the Ground and the connection between R2 and C is Volts? • Now connect the NE555 as well as Caux
Observe the Voltage between Ground and the OUT Pin of the NE555 using an oscilloscope. The Waveform is a
Now connect 390R and measure the current through it using an current meter. The current is Milliampere ? Connect the LED and observe the Voltage over the LED using an Oscilloscope. Create a screenshot of the simulation and upload it in the next question.
Please enter the results of Task 1 here.
When you want to have a duty cycle of 90% and a frequency of the rectangular signal of 100 Hz, with C set to 5.8 uF the value for Resistor R2 is , R1 is
When you want to have a duty cycle of 75% and a frequency of the rectangular signal of 100 Hz, with C set to 580 nF the value for Resistor R2 is , R1 is
When you want to have a duty cycle of 55% and a frequency of the rectangular signal of 100 Hz, with C set to72.5 nF the value for Resistor R2 is , R1 is
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