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9

KolibriSensor

V2.0 | June 17, 2014

Note

By narrowing the frequency range or increasing the number of data points it is now possible to

obtain a higher resolution characteristic in order to accurately measure the Q factor of the

KolibriSensor.

7. Either narrow the frequency range or increase the number of data points to obtain a higher

resolution characteristic. Make sure that the Q factor does not change significantly as you

further narrow the frequency range—this ensures that you have found the correct value.

Figure 8: Altering the sweep range or number of points

8. Press

Apply

next to the row of values in the table in the

Frequency Sweep

panel. This will

transfer the resonance frequency, the Q factor and the A/U_exc (amplitude/ excitation)

ratio to the Oscillation Control and PLL Setup views.

Figure 9: Sending values to the PLL Setup view

9. Enter the following in the PLL Setup view:

Ÿ

Amplitude Controller BW

: 50 Hz

Ÿ

Phase Controller BW

: 50 Hz

Note

FM-AFM measurements may require amplitude controller and phase controller bandwidths to

be optimized according to specific requirements. The values indicated above may serve as a

starting point.

Summary of Contents for KolibriSensor

Page 1: ...KolibriSensor Starter Kit User Manual V2 0 June 17 2014...

Page 2: ...2 0 June 17 2014 SPECS order number reference 78000248 2014 All rights reserved No part of this manual may be reproduced without the prior per mission of SPECS GmbH Kolibri and KolibriSensor are regis...

Page 3: ...ng Conditions 1 Chapter 2 Installation 2 1 Unpacking 3 2 2 Electrical Connections 4 Chapter 3 Operation 3 1 Inserting a KolibriSensor into the Test Stage 5 3 2 Setting Up Oscillation Parameters 6 3 3...

Page 4: ...This page intentionally left blank KolibriSensor V2 0 June 17 2014 iv...

Page 5: ...nsor ready for insertion into the receptor 6 Figure 5 Aligning the sensor into the receptor 6 Figure 6 Settings in the Oscillation Control panel 7 Figure 7 Signals in Frequency Sweep panel 8 Figure 8...

Page 6: ...This page intentionally left blank KolibriSensor V2 0 June 17 2014 vi...

Page 7: ...s please refer to Nanonis software Online Help press F1 for context sensitive help of the currently open panel SPECS SPM 150 manual For further advice and assistance please also contact SPECS support...

Page 8: ...s 40 80 recommended range 50 60 There must be no condensed water on the equipment Atmospheric pressure 800 1200 mbar Air conditioning is advisable in order to ensure the ambient requirements especiall...

Page 9: ...eration 2 1 Unpacking A packing list is provided with the delivery of the Starter Kit Please check that all items are present and that none of the equipment is damaged In case of missing or damaged pa...

Page 10: ...stage All connectors are labeled on the instruments and cables EXCITATION Attenuator Output Input Out Usupply OSCILLATION It 15 V In Test stage KolibriPreamp Nanonis Oscillation Controller Attenuator...

Page 11: ...tweezers for handling the KolibriSensor These are shaped so that they will correctly grip the KolibriSensor this greatly simplifies the process of inserting and removing the sensor Caution Only use t...

Page 12: ...Push the sensor gently into the receptor The sensor will slide into the correct position The sensor is now in place and ready for measurements 9 Fit the transport hood back onto the test stage This p...

Page 13: ...isplays a tooltip explain ing the function of the control To set up the oscillation parameters 1 Switch on both the Nanonis Realtime Controller and Oscillation Controller 2 Start the Nanonis SPM Contr...

Page 14: ...olibriSensor as given on the sensor s specification sheet Make sure the output of the Oscillation Controller is switched on by unchecking the off option box 5 Open the following panels from the Tools...

Page 15: ...ures that you have found the correct value Figure 8 Altering the sweep range or number of points 8 Press Apply next to the row of values in the table in the Frequency Sweep panel This will transfer th...

Page 16: ...the sensor oscil lation at the resonance frequency with controlled oscillation amplitude 3 3 Removing a KolibriSensor from the Test Stage To remove the KolibriSensor from the test stage 1 Remove the...

Page 17: ...of a vacuum chamber As a result it is easy to integrate into an experimental setup It eliminates the need for complicated expensive and potentially unreliable in situ preamplifiers The KolibriPreamp s...

Page 18: ...onnected in series between the output of the Nanonis Oscillation Controller and the Excitation input of the test stage The attenuators protect the KolibriSensor from excessive drive levels and improve...

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