本帖最后由 chn6 于 2014-1-5 21:36 编辑 0 V! \" n( h* V! R3 f) v2 }$ i; k
- U/ d1 e! ?$ b" h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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0 z) X$ g" t$ i, c1 O关键数据:
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1 M. {3 X+ ` V* n+ d$ c; U; oDATA
$ E2 o0 Y- x o) |9 l! D8 oOMEGA DE VILLE HOUR VISION CO-AXIAL CHRONOMETER; E4 A( k) ]3 S( Y: y- b8 D
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Manufacturer:
! A) E, k' ?5 Y+ W, }& G# Q0 P3 wOmega SA, Rue Stämpfli 96, CH-2500 Biel 4, Switzerland1 C1 `$ T1 d! f" t
. U$ Q/ D4 Y8 z6 L& [Model:
& g6 U* l" ?. q# p& Y3 KDe Ville Hour Vision Co-Axial Chronometer
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& \* {& E. D/ E0 U* n: ]Reference number:
0 X7 \. w% g0 |. \431.63.41.21.13.001; b1 }8 n" b1 L6 E$ e: [% R) G4 e
& Q# X n/ W( F( BDimensions: 腕表几何尺寸
8 e2 K" D& ], D M% j1 o: [, EDiameter = 41 mm 表径(毫米)
. c3 [. g# x3 c) N7 Yheight = 12.2 mm 厚度(毫米)1 l' `' p1 [+ s! ^( O* L3 p6 X
weight = 112 grams 质量(克)5 S/ B1 v( a8 _- s
+ T+ Q* I& @1 ?) C+ eFunctions:
! m Z8 d! H7 [( _Hours, minutes, central seconds and window date$ ?! e* r6 T+ X- e
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Movement: 机芯参数* w5 P" y& K1 }7 \% r1 k
Caliber 8500 (stainless steel; Caliber 8501 has a gold balance bridge and gold rotor);- q& n- |" \5 o/ N! d/ Z* W7 B$ Y
diameter = 29 mm (13 lignes); 直径7 o! i# N7 } Q; y" @; Q
height of Caliber 8500 = 5.5 mm; 厚度+ z% N* G6 b2 O$ ~
height of Caliber 8501 = 5.6 mm; 厚度* D- w$ E* R( U9 v# D
39 jewels; 39宝石" c+ A: S5 H8 ~) m
co-axial escapement with freely oscillating balance spring without index; 同轴擒纵无卡度游丝砝码摆轮
$ m2 y0 Y. Y; k# A5 G4 J( mNivarox-Anachron balance spring; Nivarox-Anachron合金游丝
~# M# `0 [) v) |0 V0 Hmoment of inertia = 21 mg x cm^2; 摆轮惯量6 n- y1 B/ v+ L6 a8 ~
angle of lift = 38°; 升角
5 u- t8 R+ I) x4 ffrequency = 25,200 vph (3.5 hertz); 摆轮频率
& I) U* ?7 u, Z) LNivachoc shock absorption; Nivachoc避震器
0 P% y) u7 v0 l) e0 ICaliber 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" t, K, g/ i9 }2 m: ?# U
each rotor winds in both directions of rotation; 双向自动上链
1 K; m1 J3 a9 L$ l- `/ Ztwo barrels; 双发条盒: M& A2 t* k [% V, t$ Z7 F! [" ?% Z
approx. 60 hour power reserve; 约60小时动力储备; z' Q0 l" A. x: V! x
rapid adjustment for the date display; 日期显示快速调整0 R7 c& f" C3 v; }. q w
stop-seconds function; 停秒功能# l0 o) w6 `) \& H6 B
COSC chronometer certification. 瑞士官方天文台认证2 ]! O+ \- |: P/ P* ?. j9 `
F3 B5 |0 j/ f) B6 E5 m) @+ N$ gCase:
# S2 V0 |( l* B7 e, H4 E8 ]" U& wMassive tripartite case made of sapphire crystal and rose gold;
2 ]. T9 A3 M: i$ V" o/ g( v3 Oback has pane of sapphire crystal and is affixed by four screws; ( _ s" }4 _% ?+ n3 g
crown isn’t screwed; 8 [" c ?* e( K) I* `
sapphire crystal above dial is nonreflective on both its surfaces; 3 q' a' u. z0 ~+ j) L. e1 ]% p
water-resistant to 100 meters.% J/ u& f, g$ Z2 a W* R
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Strap and clasp:
- I8 X6 N/ W: d' i0 JCrocodile-skin strap (20 mm x 18 mm) with rose-gold folding clasp.
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, ?1 A3 f6 G& W3 fResults of rate test: 测试结果
0 C1 g L) y8 \% `' n4 G1 v(When fully wound / after 24 hours / after 39 hours. Deviations in seconds per 24 hours) 3 R3 \: U" H0 Q6 z0 q& ?
(满链 / 24小时后 / 39小时后. 误差单位:秒/天)
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面上 Dial up............................................................................................ +1 +2 +2 L' Y7 `; |' f1 \
面下 Dial down........................................................................................ +3 +5 +4; X- i8 |! l+ e+ g; c1 X% p+ W
把下 Crown down..................................................................................... 0 +1 +28 X6 q% V7 U6 I9 S
把左 Crown left........................................................................................ +3 +5 +27 F: `% |: ]0 M: x/ L. k
把上 Crown up......................................................................................... +1 +3 +3
/ v! J" O. E5 }+ ~$ o3 l把右(第6方位)Crown right..................................................................... 0 +1 +2
6 s a3 Y: e' j5 ]& z瞬时日差最大差(D)Greatest deviation of rate.......................................... 3 4 2 _% T0 f% K8 Y! _
瞬时日差平均值(X)Mean deviation......................................................... +1.3 +2.8 +2.5
! \% Z; {5 y6 j6 {平放平均摆幅(Xh) Mean amplitude flat positions..................................... 292° 259° 245°
9 k3 Z8 M& Y* { x9 Y4 _( k立放平均摆幅(Xv)hanging positions....................................................... 276° 244° 223°/ w& u+ g5 ~% h; u5 ?; p3 Y$ n
立放最大摆幅差(Dv)Maximum difference between the vertical positions... 4° 3° 5°+ _6 Q6 s4 B) N4 K, l2 j
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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
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" V) m$ x' j: D$ e, h6 \( a例1,使用一年(合金游丝)+ p G$ y5 }: k6 F4 {
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4 _* } R( k2 I7 `, T例2,新表(硅游丝)
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" s9 ]; o& Y _8 G9 x例3,2年3个月(合金游丝)
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; z( f' v7 a- e: Z5 @% \; ~* c例4,使用10个月(硅游丝)
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# n$ N3 v+ [5 j7 O, q例5,新表(合金游丝)
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' A* o" n' {+ [/ j3 h. j: X例6,新表,6方位测试(硅游丝)
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例7,新表,6方位测试(硅游丝)
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根据以上数据,我们可以计算得出:
6 n h; h# c$ M) N1. 满链时的平均瞬时日差(X0)= +1.3秒/天- l# S0 i8 j# E' G+ J
2. 24小时后的平均瞬时日差(X24)= +2.8秒/天
" R1 x* l' ?. J* _3. 39小时后的平均瞬时日差(X39)= +2.5秒/天
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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。1 a) G) a ^( r% M, P
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 l. f5 K6 A* [2 X
6 Q6 r# U5 Z" c+ R1 e$ F6 p4 h+ K6 n- e至少可以得出以下结论:
: C' U% W# o" l; |) r- j8 H. N1. 8500机芯摆幅低至223度也可以正常工作
. t5 S5 ? G* E9 ]+ ^0 E$ k2. 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。/ O8 }7 z7 f& S3 g+ A$ S
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。 |