AMP002 Strain Gauge Pre Amp Original Instructions HA0172T
AMP002 Strain Gauge Pre-Amp Contents Chaper 1 Overview ................................................................................................................................. 1 Chaper 2 Safety ...................................................................................................................................... 2 2.1 Safety Information ............................................................................................................. 2 2.2 Adjustments ....................
Chapter 1 Chapter 1 Overview Overview This pre-amplification circuitry is designed to amplify resistance changes within a full Wheatstone bridge strain gauge, to produce a signal suitable for monitoring and interpretation by the Thorlabs strain gauge reader or other piezo electronics with feedback. This circuit can also be used in other custom applications.
AMP002 Strain Gauge Pre-Amp Chapter 2 Safety 2.1 Safety Information For the continuing safety of the operators of this equipment, and the protection of the equipment itself, the operator should take note of the Warnings, Cautions and Notes throughout this handbook and, where visible, on the product itself. The following safety symbols may be used throughout the handbook and on the equipment itself. The following safety symbols may be used throughout the handbook and on the equipment itself.
Chapter 2 Safety 1.2 Adjustments 1) To obtain the required voltage range the offset (VR2) and gain (VR1) potentiometers may need to be adjusted. See the circuit diagram opposite. 2) For some applications the default gain range may need changing beyond the limit of the adjustable gain. In this instance the value of R3 may need to be changed. The following equation can be used to help determine what gain resistance is needed.
AMP002 Strain Gauge Pre-Amp +15V R1 47R 0VA TP1 OSC RED C3 100n U2A TLE2072 0VA +15V C7 22pF TP2 INYELLOW 2 0VA _ V+ GAIN TP4 GND BLACK 5 + REF 0VA 5 R5 47R C4 100n TP6 ID_RES2 TP8 GND 0VA Table 1 - ID Resistor Values for Thorlabs Piezo Stacks 0VA 0VA +15V O1 0VA O2 O3 O4 1 1 1 1 0VA 0VA 0VA 0VA -15V C6 10uF 25V X5R -15V MOUNTING HOLE MOUNTING HOLE MOUNTING HOLE Value ±1% Max Displacement C5 10uF 25V X5R 0VA 7 U2B TLE2072 0VA BLACK 0VA R2 47R 6 1 R6 Refer t
Chapter 2 Chapter 2 Thorlabs Worldwide Contacts Thorlabs Worldwide Contacts For technical support or sales inquiries, please visit us at www.thorlabs.com/contact for our most up-to-date contact information. USA, Canada, and South America Thorlabs, Inc. sales@thorlabs.com techsupport@thorlabs.com Europe Thorlabs GmbH europe@thorlabs.com France Thorlabs SAS sales.fr@thorlabs.com Japan sales@thorlabs.jp UK and Ireland sales@uk.thorlabs.com techsupport.uk@thorlabs.com Scandinavia scandinavia@thorlabs.
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