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Spring Loaded Displacement Sensors SDVB20

OD20mm,Spring loaded LVDT sensor, high precision, high Repeatability 5μm,Resolution ≤0.1μm(Maximum),16 bit(Digital output),Application: Shaft radial run out detection, valve position detection and control, material hardness and stress detection, braking device corrosion detection, roll gap clearance measurement

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Spring Loaded type LVDT Displacement sensor

Ultrahigh linearity and repeatability

Analog output and Digital output , optional

Long service life at least 5 million times, one year warranty

Totally design and manufacture by SOWAY

Resistance to high temperature of 150 ℃ (optional), vibration resistance, flame-proof Exd Ⅱ CT6 (optional)

Spring Loaded type LVDT Displacement sensor

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1. Introduction
LVDT is a high-tech product used to measure the elongation, vibration, thickness, expansion and so on, it is intended for widely application in Aerospace, Machinery, Construction, Textile, Railway, Coal mine, Metallurgy, Plastic, Chemical industry and Academic research. DC LVDT performs excellently from 9-28 voltage DC power supply, suitable for high precision and high repeatability measurement, output standard signal of 0-5v or 4-20mA to be identified by computer or PLC. The integrated circuit is hermetically sealed in SUS 304 stainless steel sleeve, ensure that the transducers keep working accurately and reliably in hostile environment of damp and dust, corrosion, etc.

Spring Loaded type LVDT Displacement sensor

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2. Features
Outer diameterΦ20mm ,SS 304 shell,spring-loaded
DC single power supply, built-in excellent signal demodulator
Three wires voltage output 0-5V or 0-10V,
two wires current output 4-20mA
Hydraulic cylinder positioning
Roll gap measuring
The valve position detection and control
Shaft jumping detection
Vehicle brake wear measurement Measuring range from 1mm-50mm, high resolution,
excellent repeatability
Contactless operation, long life

Series of SDVB20 Spring-loaded
Input Voltage
9 ~28V DC 
Input Current
input current ≤12mA (Voltage output type)
input current 4~20mA (2 wire, current output type)
Measuring range
2.5, 5, 10, 15, 25, 50
Output signal
0~5V (9 ~28V DC input voltage)
0 ~10V (15 ~28V DC input voltage)
4 ~20mA (2 wire, 15 ~28V DC input voltage)
Digital output (9 ~28V DC input voltage)
Analog output:±0.25%,±0.5% etc optional; Digital output:0.25%,0.1% etc optional
≤0.01% of FS
≤0.01um(max),Digital output is 16 bit
Dynamic characteristics
Operating temperature
-25℃ ~ +85℃
Temperature coefficient
Null point≤0.01%/℃
Sensitivity ≤0.025%/℃


Spring Loaded type Spring loaded with bearing

                    Spring Loaded type                                              Spring loaded with bearing

Separate core typeSeparate core type

                   Separate core type                                                Gauging probe, inductive probe

Soway Tech Limited

Address:28# xinfeng Road Potoubei ailian longgang shenzhen china
Zip code:518172 
Tel:86-755-88367005 ext 2273 


WhatsApp  +86 18101281675

Soway信为, oriented from the Chinese words for credibility(信) and achievement(为), is given by our everlasting creed. Since the foundation of 2002, we have been committing ourselves to providing all-in-one solutions in the field of displacement and level measurement.
Considering the expertise needed in displacement and level measurement, we provide a special-care plan within the lifespan of our products.
Which is,
Ø No more complicated, just tell us what you request, our R&D team will offer a customized solution.
Ø No more difficult, we design, select and troubleshoot for you.
Ø No more concerned, we closely supervise our manufacturing process to ensure reliable products and high-standard workmanship.
In cooperation with Nanjing University of Science& Technology, we build a most professional R&D team. With a more than 20-year experience right in this industry, and a manufacture base of more than 3300 square meter, EMERSON and us have been strategic partners in the area of process control.
We believe benefiting our customers is the most significant. Cost-effective and professional service make us develop commonly. We will always be your trusted partner.
Our history
June 2002,   Shenzhen Soway Tech Limited was established
January 2004, we build our sensor laboratory in cooperation with Nanjing University of science and technology.
August 2005, In cooperation with TOPWORX, we recommend solutions of SOWAY + TOPWORX in the area of measurement & control.
March 2006, our sensor manufacturing base is established
January 2008, The plan of special care within the lifespan of products was proposed in the field of industrial control.
May 2009, being EMERSON’s strategic partner in Asia.
July 2013, evaluated as high-tech enterprises.
2016, to be continued……


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