The LS-AFM is used in life sciences applications when an inverted optical microscope is required for locating cells or other bio-materials on a surface. The LS-AFM can be retrofitted to almost any inverted optical microscope, or it can be purchased with the AFMWorkshop inverted optical microscope.
Electronics in the LS-AFM are constructed around industry standard USB data acquisition electronics. The critical functions, such as XY scanning, are optimized with a 24-bit digital to analog converter. With the analog Z feedback loop, the highest fidelity scanning is possible. Vibrating mode scanning is possible with both phase and amplitude feedback using the high sensitivity phase detection electronics.
24-bit scan DAC
Scanning waveforms for generating precision motion in the X-Y axis with the piezo scanners are created with 24-bit DACS driven by a 32-bit micro controller. With 24-bit scanning, the highest resolution Atomic Force Microscopesimages may be measured. Feedback control using the xy strain gauges assures accurate tracking of the probe over the surface.
Phase and Amplitude Detector Circuit
Phase and amplitude in the EBox are measured with highly stable phase and amplitude chips. The system can be configured to feedback on either phase or amplitude when scanning in vibrating mode.
Signal Accessible
At the rear of the EBox is a 50-pin ribbon cable that gives access to all of the primary electronic signals without having to open the EBox.
Precision Analog Feedback
Feedback from the light lever force sensor to the Z piezoceramic is made using a precision analog feedback circuit. The position of the probe may be fixed in the vertical direction with a sample-and-hold circuit.
Variable Gain High Voltage Piezo Drivers
An improved signal to noise ratio, as well as extremely small scan ranges are possible with the variable gain high voltage piezo drivers. The LS-AFM is used in biology applications in conjunction with an inverted optical microscope. Customers can buy the LS-AFM in two variations:
For customers who already own an inverted optical microscope: In this configuration, AFMWorkshop fabricates a special plate that pairs the LS-AFM with the customer’s existing inverted optical microscope.
With over 250 customers worldwide, AFMWorkshop has developed a reputation of being the leading manufacturer for high-value atomic force microscopes. We design and manufacture high-quality atomic force microscopes (AFMs) that far exceed the expectations of our customers, and we provide fundamental training to each of our customers. We guarantee our AFMs will run your application, and our customer service is always available to assist. For more details, please visit www.afmworkshop.com Or call at 1 (888) 671-5539.
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