Straight Line Displacement Sensor

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Delivery: Shipment within 3 days since the date of payment
Address: China
Valid until: 2019-01-08
Updated on: 2018-01-08 17:22
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Details
 Model: WYDC LVDT

Description:

The WYDC LVDT differential transformer displacement sensor has good environmental adaptability. It is widely used to measure various physical quantities that can be changed into displacement in advance and to measure the mechanical quantities (such as tension, pressure, vibration, liquid level, etc.) that can be converted into displacement. Microelectronic technology is adopted in the amplifying circuit of the sensor

The Working Principle

The WYDC LVDT differential transformer is a sensor that converts the linear displacement into a simulated voltage. Because of its structure as a whole, the durability and environment resistance are excellent, and the temperature range is -20℃-120 Differential Transformer displacment sensot is made of a promary coil, a sesncendary coil and a movable core. Added fixed voltage and frequency of sine wave excitation on primary coil and secondary coil induces response voltage by moveable core.The output characteristics of two of the secondary coil and the excitation signal is a differential output with the frequency of the AC voltage. Through the detection circuit to be output DC voltage displacement. The detection circuit consists of a rectifier diode and a RC filter. The measurement range is a moving travel of a movable iron core, which is usually from a number of +mm to hundreds of mm. When the moving iron core is in the center position, the output voltage is 0 V: the positive and negative voltage, which is proportional to the moving distance, is produced when the movement is left and right. The linearity is less than 1% and the detection precision is m. The error increases when it exceeds the prescribed travel.

 

Features:

No active contact, high reliability and long life;

The resolution is high and the sensitivity is good.

High linearity and good repeatability.

Wide range of measurement (low resolution when measuring range is wide)


External Size and Technical Parameter

Spec

Measure Range(mm)

A(mm)

L(mm)

△L(mm)

D(mm)

E(mm)

 MIN

MAX

5L、2.5D

5、±2.5

180

30

54

15

Φ26

M5

10L、5D

10、±5

180

30

80

15

Φ26

M5

20L、10D

20、±10

180

30

95

15

Φ26

M5

30L、15D

30、±15

180

30

111

15

Φ26

M5

50L、25D

50、±25

230

30

155

15

Φ26

M5

100L、50D

100、±50

280

30

205

15

Φ26

M5

150L、75D

150、±75

380

30

265

15

Φ26

M5

200L、100D

200、±100

400

30

321

15

Φ26

M5

300L、150D

300、±150

540

30

485

15

Φ26

M5

400L、200D

400、±200

670

30

644

15

Φ26

M5

500L、250D

500、±250

830

50

749

15

Φ26

M5

Comprehensive Accuracy

0.25%、0.5%、1%F·S

Output Signals

4~20mA、0~5 or 0~±5V、0~±10V

Power Voltage

12V、15V、24VDC(standard)

Working temperature

-10~60℃

Zero Shift

0.01%/℃

Sensitivity Drift

0.05%/℃

Dynamic Frequency

0~200Hz

                 

Note: * L means unidirectional, D means bidirectional. *

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