DEVICE TO CALIBRATE OPTICAL EQUIPMENT THAT MEASURES AVERAGE DIAMETER OF DISPERSED PARTICLES Russian patent published in 2014 - IPC G01N15/02 G01R35/00 

FIELD: measurement equipment.

SUBSTANCE: device is designed to calibrate optical equipment that measures average diameter of dispersed particles and comprises a cuvette with a transparent liquid, a measurement channel comprising a microscope and a photorecorder and a lighting channel comprising two sources of light with different wavelengths. Additionally an ultrasonic generator is introduced, as well as an ultrasonic emitter, a pulse block of power supply of light sources, a synchroniser and calibrated equipment, at the same time directions of optical axes of the measurement channel and calibrated equipment cross in the illuminated zone of the cuvette, one source of light is installed on the optical axis of the measurement channel, and the second source has an optical axis matched with the optical axis of calibrated equipment, the outlet of the ultrasonic generator is connected to the inlet of the ultrasonic emitter, and the latter is placed into the cuvette with the liquid and is fixed in close proximity to the illuminated zone, sources of light are connected to the outlet of the pulse power supply block, the inlet of the synchroniser is connected to the outlet of the ultrasonic generator, and outlets of the synchroniser with control inlets of the calibrated equipment recorder, photorecorder and the pulse power supply block of the sources of light. At the same time cavitation bubbles in the cuvette produces as a result of action of the ultrasonic generator perform the function of dispersed particles for calibration. The device may have the following versions of design: the optical axis of the second source of light matches with the optical axis of calibrated equipment; calibrated equipment and the second source of light are fixed as capable of separate displacement in the plane perpendicular to the optical axis of the measurement channel.

EFFECT: simplified calibration of measurement systems as a result of replacement of sample suspensions with a dispersed system with controlled average diameter of particles and synchronisation of processes of management and measurement.

2 dwg, 3 cl