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LVDT差动变压位移传感器-美国TRANS-TEK

来源:仪器仪表网发布时间:2019.06.22 16:16:57 阅读:571

产品品牌:美国TRANS-TEK位移传感器

产品名称:直线LVDT差动变压位移传感器

产品型号:LVDT系列直线位移传感器

产品特点:

LVDT 意思为Linear Variable Differential Transformer(差动变压位移传感器). 基本元件由一个铁芯和两个线圈组成. 通过一次线圈与二次线圈弱电磁耦合,使得铁芯的位移变化量与输出电压(电流)变化量呈精密线性关系。

Fact What this means to you
传感元件之间无接触 寿命无限
非常耐用的传感器 适合用于恶劣的环境
无限的分辨率 测量数值可以无穷小
绝对值测量 断电后可以保持位置信息
模拟量输入/输出 信号适合于大部分系统
绝佳的重复性 能提供非常准确的运动与否的反馈

Linear (LVDT) Displacement Transducers差动变压位移传感器

DC-DC 型号

Series 200  量程0.10" to 0.20"; 0.75" OD

Series 240  量程0.10" to 6.0"; 0.75" OD

AC-AC 型号

Series 210-220 大量程LVDT差动变压位移传感器 0.50" 到 60"; 0.75" OD

Series 230 小量程LVDT差动变压位移传感器 0.01" 到 2.0"; 0.375" OD

Series 280 经济型小量程LVDT差动变压位移传感器 0.10" 到 2.0"; 0.75" OD

Series 290 通用型LVDT差动变压位移传感器 0.10" to 6.0"; various ODs


Series 200型号:

The Series 200 DC-DC LVDTs are precision Linear Variable Differential Transformers packaged with a solid state oscillator and a phase sensitive demodulator. The transducer is designed to work with DC voltages, and has excellent linearity, infinite resolution, and high sensitivity. Input and output circuits are electrically isolated from each other and from the coil assembly housing, making them usable directly in floating or ground return systems. DC indicators, recorders, and control systems can usually be driven directly by the large DC output. The core, when displaced axially within the coil assembly, produces a voltage change in the output directly proportional to the displacement.

系列200 DC-DC LVDTs是一种精密线性变差动变压器,配有固态振荡器和相敏解调器。该换能器设计用于直流电压工作,具有良好的线性度、无限分辨率和高灵敏度。输入和输出电路相互隔离,并从线圈组装外壳,使他们可以直接用于浮动或地面返回系统。直流指示器、记录器和控制系统通常可以由大的直流输出直接驱动。当铁芯在线圈总成内轴向位移时,其输出电压的变化与位移成正比。

KEY FEATURES:

  • Ranges from ±0.05” to 0.20”
  • Non-linearity < 0.5%, 0.3%
  •  Stainless Steel Construction
  •  High Sensitivity

主要特点:

  • 范围从±0.05 "至0.20 "
  • 非线性< 0.5%,0.3%
  • 不锈钢结构
  • 高灵敏度

SPECIFICATIONS - ELECTRICAL

MODEL 0200-00000 0200-00010 0201-00000 0201-00010
RANGE, ±Inches (±mm) 0.050  (1.27) 0.050  (1.27) 0.100  (2.54) 0.100  (2.54)
INPUT, VDC 7 Max., 5 Min.
INPUT, mA 20 20 35 35
OUTPUT, FULL SCALE OPEN CIRCUIT, ±VDC 1.5 1.5 2.8 2.8
LINEARITY, ±FULL SCALE, % 0.5 0.3 0.5 0.3
INTERNAL CARRIER FREQUENCY 9 KHz
MAX RIPPLE, RMS/VDC Output Range 0.7%
OUTPUT IMPEDANCE, KOhms 2.2 2.2 3.0 3.0
FREQ. RESPONSE (3dB down), Hz 350 350 170 170
TEMPERATURE RANGE -65°F to +140°F    (-54°C to +60°C)
RESOLUTION Infinite

Notes:

1. Polarity of excitation must be observed for proper function. Reversal will not damage the unit.

2. Load Impedance of 50 KOhms minimum required for proper operation.

3. Output polarity will be positive on one side of null, negative on the other side of null.

4. Blue lead is more positive with respect to the Green lead when the core is moved to- ward the lead end.

  • 注:
  • 1. 激发的极性必须观察到适当的功能。反转不会损坏单位。
  • 2. 负载阻抗为50 KOhms最小要求为正确的操作。
  • 3.输出极性在零点的一边为正,在零点的另一边为负。
  • 4. 当磁芯向铅端移动时,蓝色铅对绿色铅的正电荷更大。

BLOCK DIAGRAM

DIMENSIONAL DIAGRAM

SPECIFICATIONS - MECHANICAL

MODEL* LINEAR RANGE
±Inches (mm)
BODY LENGTH, A
Inches (mm)
ELECTRICAL CENTER, E
C
Inches (mm)
BODY MASS
Grams
CORE LENGTH, B
Inches (mm)
EXTENSION LENGTH, E
Inches (mm)
0200-0000 0.05  (1.27) 0.81  (20.6) 0.32  (8.13) 21 0.56  (14.2) 1.9  (48.3)
0200-0001 0.05  (1.27) 0.81  (20.6) 0.32  (8.13) 21 0.56  (14.2) 1.9  (48.3)
0201-0000 0.10  (2.54) 1.06  (26.9) 0.44  (11.2) 26 0.81  (20.6) 1.9  (48.3)
0201-0001 0.10  (2.54) 1.06  (26.9) 0.44  (11.2) 26 0.81  (20.6) 1.9  (48.3)

CORE OPTIONS

Core Assembly Ref Fig. 1 Threaded Core Ref Fig. 2
OPTION 0 OPTION 1 OPTION 2 OPTION 3
MODEL C = 0.120" (3.05mm) C = 0.099" (2.51mm) C = 0.120" (3.05mm) C = 0.099" (2.51mm)
0200-0000 C004-0000 C004-0001 C005-0002 C005-0003
0200-0001 C004-0000 C004-0001 C005-0002 C005-0003
0201-0000 C004-0002 C004-0003 C005-0006 C005-0007
0201-0001 C004-0002 C004-0003 C005-0006 C005-0007

* Model numbers ending with a “_” have multiple core options. All standard units will end with a 0 indicating a core assembly. This core assembly consists of a core brazed to an extension rod that terminates in 1-72 UNF-2A threads. If an option is not selected, option 0 will be provided. Option 1 indicates a core assembly with a smaller core. Core options 2 and 3 provide a threaded core only. A separate extension rod can be used to connect the core to the moving object.

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