The 902A Laser Diode Sarcomere Length system is intended for manual measurement and setting of sarcomere length before or during an experiment. The product was designed for use with an 801C Small Intact Muscle Test Apparatus or an 802D Permeabilized Fiber Test Apparatus available from Aurora Scientific.
In operation, a laser beam is projected vertically upwards out of an unused objective port on an inverted microscope and through the tissue suspended in the apparatus tissue bath. The laser beam is diffracted by the sarcomeres in the tissue and this diffraction pattern is projected on the target. The laser beam separation is compared with lines printed on the target to determine and set the sarcomere length.
The system includes: SL target, target holder, laser diode, XY stage mount for the laser diode, laser diode on/off switch and laser diode power supply. The laser diode portion mounts to a C-mount adapter on the researcher’s inverted microscope.