Spike thermocouples are critical temperature measurement devices used in horizontal and vertical heating elements for precise ... manufactured to original equipment specifications.
Thermocouple Material: Type R, S, B, K, Platinell II Ceramic Diameters (in.): .1875, .125, .094 Junction Configuration:
· γ
4
[19]
R20/m =
ρ · 4
π · d2
[1’]
R20/m =
ρ
b · t
[1’]
R20/m =
ρ
0.92 · b · t
[1’]
FORMULAS FOR VALUES IN TABLES
In chapter Tables ... m = volume · γ = q · l · γ mm = q · γ
Wire
mm = b · t · γ [19]
Strip
Ribbon
mm = 0.92 · b · t · γ [19]
Surface area per meter, AC/m cm
2/m
Based
符号列表 计算单位 符号 含义 公制 英制 AC 加热导体的表面积 cm2 in2 b 宽度(扁带或带材) mm in Ct 温度系数(工作温度下的电阻率与室温下的电阻率之比) d 线材直径 mm in D 线圈外径 mm in I 电流 A A L 加热导体的长度 m ft Le 线圈长度 mm in
(metric) [6]
AC = π · d · L · 12 (imperial) [6]
AC = 2 · (b + t) · L · 10 (metric) [7]
AC = 2 · (b + t) · L · 12 (imperial) [7]
U = RT · I V [8]
Combining ... 3 4π2 ·
812 · 1000
51.6 · 40 ·
1
15.28 · 106 = 0.022 in
Strip
q = b · t mm2 (in2) [13]
Ribbon
Since ribbons are made by flattening round wires