TRANSDUCER OF PYROMETER OF SPECTRAL RELATIONSHIP Russian patent published in 2002 - IPC

FIELD: optical pyrometry, predominantly, measurement of temperature of burning products in flame of solid-fuel rocket engine during bench test. SUBSTANCE: transducer includes objective lens 1, radiation detector 2, immobile reflecting mirrors 3 and 4, light filters 5 and 6, condenser 7, diaphragm 8 and obturator-inclined small-size reflecting mirror 9 anchored on shaft 10 of small-size high-speed motor 11. Angle of inclination of mirror is chosen from condition that beam reflected by obturator must hit reflection surface of spherical mirror 3. Radiation flux from heated body passes through objective lens 1, diaphragm 8, condenser 7 and falls on obturator-mirror 9 which reflects flux with the help of reflecting mirrors 3 and 4 on to radiation detector 4 in two positions in each revolution of shaft 10 of motor 11. In one position of obturator-mirror 9 flux is reflected from spherical mirror 3 and is focused on radiation detector 2 through light filter 5, in another position through light filter 6. EFFECT: enhanced body of temperature information generated in process of single test of solidfuel rocket engine thanks to increased speed of response and reliability of transducer operating under conditions of significant vibration and overload created by running solid-fuel rocket engine. 1 dwg