L'explication/l'anotation:To the operation in piezoelectric resonant sensors of redundant and absolute äàâëå
Nia with frequency output. Right-angled quartz. body.
overall dimensions: 25, 3 kh 23, 3 kh 4, 5. 12, 2 MM.
La description détaillée de marque:The blocs the resonator quartz manometric ÁÐÊÌ-Ð consist of
measurement and reference cavities (or only measurement),
encompassed by right-angled quartz body.
interval of working pressures of R.. From 0, 1 to 25 MPa;
nominal vibration velocity of resonators of Fn. From 32 to 48 kHz;
dynamic resistance of Rê. 200 lumps;
capacity, scattering on resonators of W. 3 microWatts;
dynamic characteristics f (P) = F0 + A1P + A2P2 + A3P3,
where f (P) - resonator frequency in case of running value of pressure, Hz ;
F0- resonator frequency in case of zero-point pressure, Hz;
r - running value of pressure, MPa;
À2, À3- coefficients of second and third order. They determine
the non-linearity (the value of which - less 0, 4 %) and are specified in case of order.
sensibility (linear coefficient of À1. From 127 to 7959 Ãö/Ìïà
correspondingly for pressure of 16 to 0, 16 MPa;
operating temperature range. From - 40 to + 80 hails with;
temperature errors on some interval of working òåìï-òóð not more 0, 75%;
change of frequency difference of measurement and reference cavities in
operating temperature range for every 10 hails with not more, %. 0, 1;
vibration proofness (of 10 to 2000 Hz, acceleration 50 ì/ñ2, 8 o'clock).
+/- 5 ððì;
the relative deviation of linear coefficient of À1 from its middle
significance (is recalled in case of order). From +/- 5 to +/- 20 %;
hysteresis of working áàðî÷àñòîòíîé characteristic not more. 0, 02 %;
ageing: for first year of storage not more. +/- 5 ððì;
in years that followed not more. +/- 25 ððì;
the dependence of resonator frequency from temperature of f= f0+A1T+A2T2
âîñïðîèçâîäèìà with precision. 0, 05 %;
the resonators are products unrestorable and repair not
are subject to. The maker guarantees the adequacy in quality of resonator in case of
observance by the conditions consumer of transportation, storage and
operation. Guarantee period - 50000 ch from the day of input
resonators in operation. Guarantee storage life - ten years with
time manufacture. The maker guarantees the coefficient change
resonators transformation to its the initial value +/- 0. 05 %
for the first year and +/- 0. 02 % in the year that followed. For indemnification
temperature error, are being applied thermosensitive quartz
resonator ÐÊÒ206. The operating temperature range can be extended from
- 269 to +250 the hail with (is recalled in case of order). On the basis of ÁÐÊÌ-Ð
have been developed the absolute-pressure pickups (with indemnification
temperature error) quality class to 0, 05. |
