Mixing ratio detecting device for composite liquid

Moisture indicator

Monochromator

Monochromator combining a plurality of light dispersing elements

Monochromator having a concave holographic grating

Monochromator having a toroidal holographic diffraction grating

Monolithic beam splitter mirror arrangement

Multi-channel implicit ratio computer for sequential signals

Multi-probe system for measuring bubble characteristics gas hold

Multi-purpose sensor system and sensing method using internally

Multi-spectral optical comparator

Multifrequency laser oscillator for holographic contouring

Multioscillator ring laser gyro output information processing sy

Multiple chemistry analyzer

Multiple path configuration for a laser interferometer

Multiplex interferometer

Narrow angle, narrow bandwidth optical receiver system

Nephelometer having means semiautomatically cancelling componen

Non-destructive method of determining the refractive index...

Novel technique for spot position measurement