本帖最后由 chn6 于 2014-1-5 21:36 编辑
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; n: F0 x8 k* N' \: R一份比较老的资料,但今天偶然看到里面有关键测试数据,可以一扫许多疑问,故发出来大家看看。
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8 x1 U) j& b7 f% C* C6 e关键数据:
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DATA
5 G; z7 m& u/ ]OMEGA DE VILLE HOUR VISION CO-AXIAL CHRONOMETER( D- e8 D: x: s6 g1 D5 Q
H. x. q4 f% pManufacturer: 9 g0 v3 M, a, K3 n2 d+ O0 P
Omega SA, Rue Stämpfli 96, CH-2500 Biel 4, Switzerland5 i9 q3 s! r) `" Z
! e1 A1 l# d l6 Z4 WModel: . C4 [& u( a5 k" w0 O
De Ville Hour Vision Co-Axial Chronometer
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* R5 a( }! v* a+ NReference number:% c9 t1 t- x! ~0 l, V
431.63.41.21.13.001
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Dimensions: 腕表几何尺寸
7 M+ O' P4 K! T7 e' t+ d2 jDiameter = 41 mm 表径(毫米)
1 H r6 \. I: }2 ^4 T7 M' T" f9 iheight = 12.2 mm 厚度(毫米); U( W( K0 \" u9 u, ], {
weight = 112 grams 质量(克)3 }& b8 z: D2 f; g4 t! L
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Functions:" b) W* w3 `1 E* ^4 f5 @
Hours, minutes, central seconds and window date
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; K+ j& h |& y3 uMovement: 机芯参数
3 N' c* _; x ?Caliber 8500 (stainless steel; Caliber 8501 has a gold balance bridge and gold rotor);
% p! N6 f3 R/ e7 [0 Gdiameter = 29 mm (13 lignes); 直径
) c( F0 ]7 _$ Cheight of Caliber 8500 = 5.5 mm; 厚度 g; P; h. L4 d& Z- |2 f
height of Caliber 8501 = 5.6 mm; 厚度' V+ y! }) ]. h0 Q! m/ F/ u5 C, V
39 jewels; 39宝石
- t. s0 B# d+ Fco-axial escapement with freely oscillating balance spring without index; 同轴擒纵无卡度游丝砝码摆轮/ ]* w$ O5 t2 f
Nivarox-Anachron balance spring; Nivarox-Anachron合金游丝
& r1 r3 r+ t3 M; Z1 o' tmoment of inertia = 21 mg x cm^2; 摆轮惯量
" b: S, c$ r% t- Langle of lift = 38°; 升角/ J# c0 |% x8 G% E; @
frequency = 25,200 vph (3.5 hertz); 摆轮频率
1 Z1 B2 i$ {3 v4 q* F% GNivachoc shock absorption; Nivachoc避震器
$ P3 y$ v( s! ~' \# yCaliber 8500 has a heavy metal rotor, Caliber 8501 has a solid gold rotor; 8500钢质自动陀,8501金质自动陀; x) W6 h0 P7 h% b) Q: B/ P6 ^
each rotor winds in both directions of rotation; 双向自动上链/ g/ d# B, O, s, p
two barrels; 双发条盒1 Y; H ^) L! v. g- l
approx. 60 hour power reserve; 约60小时动力储备 @4 M* D8 t7 k8 V
rapid adjustment for the date display; 日期显示快速调整
" [: L3 c0 G( `stop-seconds function; 停秒功能
7 ]0 f! K& g& u; a* D7 eCOSC chronometer certification. 瑞士官方天文台认证4 C3 u+ ~- h) A2 N0 F. _, ]
! H; {# G/ U _9 O& KCase:
7 o3 z$ k1 S- q) l! k' oMassive tripartite case made of sapphire crystal and rose gold; # n O |$ ]+ @0 F& n& b% Y y
back has pane of sapphire crystal and is affixed by four screws;
5 l- Z0 Q/ j1 J Y# Pcrown isn’t screwed;
+ W4 ]( t1 n& W9 Esapphire crystal above dial is nonreflective on both its surfaces;
! O8 |# k( S# q* M8 u! k, swater-resistant to 100 meters.7 w. H M1 A! v/ l% Q/ F
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Strap and clasp:
1 d1 C5 Z* ]' b4 u+ f. eCrocodile-skin strap (20 mm x 18 mm) with rose-gold folding clasp.. x, M, U; s$ r( A2 |; k: c3 ~
1 r' w$ j: P* B! z2 X9 Y! F! u |Results of rate test: 测试结果+ v4 V9 @& F9 K+ L# T: S0 J& _
(When fully wound / after 24 hours / after 39 hours. Deviations in seconds per 24 hours)
7 m6 I* I* `9 o3 y8 ^" q(满链 / 24小时后 / 39小时后. 误差单位:秒/天)
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# P4 C" c/ g$ c! i面上 Dial up............................................................................................ +1 +2 +2! F* ~1 _# O3 a1 Y# s
面下 Dial down........................................................................................ +3 +5 +4- ^& v7 h. s$ R
把下 Crown down..................................................................................... 0 +1 +2! ]- m; N* U3 j. x% Y% { p
把左 Crown left........................................................................................ +3 +5 +2' w4 X7 [% v q
把上 Crown up......................................................................................... +1 +3 +3
. G& c5 H0 i6 V6 u* }/ o) s x$ k把右(第6方位)Crown right..................................................................... 0 +1 +2: @7 y0 R, G, n/ T
瞬时日差最大差(D)Greatest deviation of rate.......................................... 3 4 20 A) Q2 @7 m( t0 d, l5 w
瞬时日差平均值(X)Mean deviation......................................................... +1.3 +2.8 +2.5- b+ Y! F& _6 w8 N; L( Y6 b, m6 M
平放平均摆幅(Xh) Mean amplitude flat positions..................................... 292° 259° 245°8 ^$ e' F% }& x$ K3 |6 P
立放平均摆幅(Xv)hanging positions....................................................... 276° 244° 223°
: s$ ^5 w6 M& ]5 d立放最大摆幅差(Dv)Maximum difference between the vertical positions... 4° 3° 5°
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, Q" V' d; J Z d: \, r9 S3 C/ D对照之前收集的8500在O服的误差单做参考(专用校表仪数据,数值准确),文章数据合理4 e0 M8 ^7 [2 `* L
- {1 E% K$ U6 N! u7 I. `/ l例1,使用一年(合金游丝)0 Y& B% ? G& d/ i+ X* l# J" d
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例2,新表(硅游丝)
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$ f5 D9 u9 h3 U0 {. w例3,2年3个月(合金游丝)
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例4,使用10个月(硅游丝)
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例5,新表(合金游丝)
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例6,新表,6方位测试(硅游丝)6 j0 z! z% D! Z6 L1 Q
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. z( E0 ^! g# x$ s例7,新表,6方位测试(硅游丝)6 E, x( P6 |6 H6 i9 p
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根据以上数据,我们可以计算得出:
. H! w* J! q" g8 C* S1 ?1. 满链时的平均瞬时日差(X0)= +1.3秒/天
8 M2 A) Z5 P' c. L: A1 m2. 24小时后的平均瞬时日差(X24)= +2.8秒/天9 i, U: _0 R& {" _1 b
3. 39小时后的平均瞬时日差(X39)= +2.5秒/天* y4 d& i% w0 V. X
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8500机芯从满链到39小时后,平放摆幅下降最大值47度,立放摆幅下降最大值53度,最大摆幅下降值69度,最低摆幅223度时。; w+ S7 z4 Y/ S. F
如此摆幅变化,平均误差最大差,从0至39小时只有1.5秒/天
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至少可以得出以下结论:' N4 K' D3 b1 _4 z5 |; I
1. 8500机芯摆幅低至223度也可以正常工作& ?" ?2 J5 o2 m# N" N
2. 8500机芯从上满弦后即使不动,40小时内误差变化在1.5秒内。% ?$ [; s. V( r' p7 ]2 H0 A" y% l4 J
3. 同轴擒纵相对杠杆擒纵,由于其“纵”的过程干脆直接不拖泥带水,摆幅的变化对误差的影响更小。 |