ASSEMBLY OF QUARTZ MEASUREMENT PRESSURE AND TEMPERATURE TRANSDUCER WITH DYNAMIC CORRECTION Russian patent published in 2015 - IPC G01L9/00 

FIELD: measurement equipment.

SUBSTANCE: invention relates in general to a pressure measurement device and, in particular, to an assembly of a quartz measurement pressure and temperature transducer characterised by improved correction of errors under action of pressure and temperature gradients. The proposed assembly of the measurement converter comprises the first, second, third and fourth generators (19, 20, 21, 22) with quartz stabilisation of frequency and the first, second, third and fourth quartz resonators (2, 3, 4, 5) with oscillations of shift by thickness, where the first, second, third and fourth generator is controlled accordingly by the first, second, third and fourth quartz resonator, at the same time the first and second quartz resonators create accordingly a pressure resonator (2) and a reference resonator (3), which together are structurally made as a pressure sensor providing for a frequency output signal (8); the third quartz resonator (4) creates the first temperature resonator, structurally arranged as a temperature sensor, providing for a frequency output signal (9); and the fourth quartz resonator (5) creates the second temperature sensor, at the same time the frequency output signal (22) of the fourth generator is mixed with the frequency output signal of the third generator (21) to produce a dynamic thermal output signal (10), and a resonator (5) of the second temperature sensor is a part of that holder (6), as the reference resonator (3) and the first temperature resonator (4), or is a part of another holder (7).

EFFECT: increased accuracy of measurements.

38 cl, 12 dwg