ThomasNet News Logo
Sign Up | Log In | ThomasNet Home | Promote Your Business

Capacitive Displacement Sensor offers 50 picometer precision.

Print | 
Email |  Comment   Share  
Capacitive Displacement Sensor offers 50 picometer precision.
Capacitive Displacement Sensor offers 50 picometer precision.
Click Here to Enlarge Picture
March 13, 2014 - Designed to measure position/displacement, Elite Series CPL490 offers resolution of less than 7 ppm, even at 15 kHz bandwidth. Unit can resolve target position changes of less than 100 picometers while objects are moving at 15 kHz. When bandwidth is increased to 50 kHz, precision is still less than 0.3 nm. Sensor features bar graph display indicating probe position within its calibrated range and adjustable offset to zero output. Linearity is less than 0.2% and error band is less than 0.3%.

World's Most Precise Capacitive Displacement Sensor Now Available

Lion Precision Inc.
563 Shoreview Park Rd.
St. Paul, MN, 55126 7014

Press release date: March 4, 2014

St. Paul, MN USA -- Lion Precision’s CPL490 Capacitive Displacement Sensor measures position/displacement with 50 picometer precision or less. Relative to the noncontact sensor’s measurement range, that translates to a resolution value of less then seven parts-per-million even at 15 kHz bandwidth. “We are now able to measure changes in an object’s position when it moves less than the diameter of one of the molecules in the object,” says Don Martin, Lion Precision president. Previous models were capable of similar precision but only when high frequency components were filtered out of the measurement signal. The CPL490 can resolve target position changes of less then 100 picometers while objects are moving at 15 kHz. When bandwidth is increased to 50 kHz, a remarkably high frequency for capacitive sensors, the precision is still less than 0.3 nanometers.

Engineers, designers, and researchers needing incredibly precise measurements of changes in position of a moving object now have the tool they have been waiting for. High density hard-disk drives require spindles that turn with near zero amounts of error motion (wobble). Martin elaborates, “Disk drive spindles have gotten so good, it was difficult to measure the error with existing technology, but the industry demands ever higher rotary precision to continue packing more data on a disk.” Previous technology was incapable of seeing the tiny movements when the spindles were turning at operating speeds. The CPL490 has now opened a viewing window into the dynamic nano world enabling spindle manufacturers and designers to take the next step in precision. Many other industries including semiconductor and electron microscopy require measurement of position with similarly increasing precision. “Some new technologies can’t take the next step until they are given the ability to quantify these tiny movements. We are now able to provide that,” adds Martin.

The CPL490 is a new capacitive sensor module in Lion Precision’s Elite Series product line. For ease of setup, the device features a bar graph display indicating probe position within its calibrated range and an adjustable offset to “zero” the output . Bandwidth is selectable allowing the user to maximize the relationship between bandwidth and resolution for each application. The Elite Series is a modular system also offering signal processing and other capacitive sensor modules.

CPL490 Specifications (dependent on probe and range selection):
Output: 10 VDC, single-ended or differential
Typical Resolution at 15 kHz: 0.0007%
Maximum Bandwidth: 50 kHz
Selectable Bandwidth: 1 kHz, 10 kHz, 15 kHz, 50 kHz
Linearity: <0.2%
Error Band: <0.3%
Maximum Drift: <0.02% F.S./C

More detail on the CPL490 is available on its web page:

In 1958, Lion Precision was the first company to provide capacitive displacement sensors to industry. The company has expanded its product offering to include eddy-current displacement sensors and some application specific sensors for the machine tool, packaging and PCB industries. The company is built on assisting users with sensor selection and implementation by providing technical knowledge resources, expert guidance and optimized systems including custom designs. Lion Precision provides high-performance noncontact sensors and experts to help use them.
Print | 
Email |  Comment   Share  
Contacts: View detailed contact information.


Post a comment about this story

(your e-mail address will not be posted)
Comment title:
To submit comment, enter the security code shown below and press 'Post Comment'.

 See related product stories
More .....
 See more product news in:
Sensors, Monitors and Transducers
 More New Product News from this company:
Eddy-Current Displacement Sensors offer 15 mm measurement range.
Non-contact Displacement Sensors offer wireless capabilities.
Clear Label Sensor fits into tight spaces.
Three-Axis Spindle Stage allows for accurate error analysis.
More ....
| Featured Manufacturing Jobs
 Other News from this company:
Lion Precision Offers Factory Calibration in Japan
Lion Precision Announces New Application Note to Improve Shaft Runout Measurement Efforts
New Vibration Measurement Application Note Helps with Complicated Metrology
New Micro Displacement Measurement and Linear Position Measurement Application Notes
New Website Helps Label Sensor Users
More ....
 Tools for you
Watch Company 
View Company Profile
Company web site
More news from this company
E-mail this story to a friend
Save Story
Search for suppliers of
Position Sensors
Displacement Sensors
Capacitive Sensors
Non-Contact Displacement Sensors
Non-Contact Sensors
Join the forum discussion at:
Tools of the Trade

Home  |  My ThomasNet News®  |  Industry Market Trends®  |  Submit Release  |  Advertise  |  Contact News  |  About Us
Brought to you by        Browse ThomasNet Directory

Copyright © 2014 Thomas Publishing Company. All Rights Reserved.
Terms of Use - Privacy Policy

Error close

Please enter a valid email address