<sup id="nxtn5"><ins id="nxtn5"><small id="nxtn5"></small></ins></sup>

        <em id="nxtn5"></em>
        <em id="nxtn5"></em><delect id="nxtn5"></delect>

          <div id="nxtn5"></div>
          <menuitem id="nxtn5"></menuitem>

                    <em id="nxtn5"><span id="nxtn5"></span></em>

                      <div id="nxtn5"></div>
                      <em id="nxtn5"></em>
                      <div id="nxtn5"><tr id="nxtn5"></tr></div>
                      <dl id="nxtn5"><ins id="nxtn5"><thead id="nxtn5"></thead></ins></dl>
                       
                      Home  |  About ANYI   |   Products   |   Service + Support   |   Testimonials   |   Expertise   |   Contact   |     
                      Standard Reference
                           Artifacts
                      Precision Step Gauges
                      Swivel Support
                      Module masters
                      Gauge blocks
                      Slide Calipers
                      Digital Calipers
                      Dial Calipers
                      Vernier calipers
                      Digital Scale Units
                      Depth Gauges
                      Digital Depth Gauges
                      Dial Depth Gauges
                      Vernier Depth Gauges
                      Height Gauges
                      Digital Height Gauges
                      Dial Height Gauges
                      Vernier Height Gauges
                      Micrometers
                      Micrometer Heads
                      Outside Micrometers
                      Inside Micrometers
                      Depth Micrometers
                      Indicators
                      Thickness gauges
                      Indicators
                      Special Calipers
                      Special Designs
                      Accessories
                      Clinometers
                      Stands
                      Data Interfaces
                      Surface Plates
                      Others
                      You are here: Home >> Expertise

                      Expertise

                      Brief Introduction to the Performance of Various Sensors Used in Electronic Digital Calipers

                           Sensors used for electronic digital caliper are mainly grating sensors, electromagnetic induction sensor (including inductosyn, (self , mutual ) inductance sensors, eddy-current sensors, etc.), capacitive sensors and gate magnetic sensors.

                           These various sensors have their own advantage and disadvantage. Grating sensors had been used in digital caliper in the 70’s of last century. It’ not practical because of its strict requirements for the work environment. Capacitive senors have fewer requirements for the work environments and therefore are most widely used for digital calipers at present. The prototypes of digital calipers made of eddy-current sensor or inductosy sensor in the late 90’s of last century failed to be commercialized due to its low accuracy and high power consumption. Digital calipers made of gate magnetic sensor at the beginning of this century failed to become the most ideal digital caliper due to its being easily magnetized by strong magnetic field.

                           At present, most digital calipers in the markets are made of capacitve sensor with incremental encoding system. Such digital calipers have the shortcomings of poor reliability and non-waterproof.

                           The latest design of IP67 digital caliper with absolute encoding system is made of special electromagnetic induction sensor. Its absolute encoding system is also specially designed. Japanese absolute encoding system adopts 2 encoding. The pitches in the 2 encoding are unequal. The absolute displacement is calculated by the pitch differential value. High accuracy for the 2 encoding is required. Otherwise there will be calculation errors.Our IP67 digital caliper adopts 2 encoding or more encoding. But the accuracy is decided by only one of its 2 encoding and will not be affected by other encoding. This reduces the difficulty and cost of manufacturing. At present, it’s the world’s cheapest and most reliable waterproof digital caliper made of electromagnetic induction sensor with absolute encoding system.

                      [ << Back ]          

                       
                       
                      CopyRight © 2009 Anyi Instrument Co.,Ltd All Rights Reserved

                      甘肃快三开奖结果今天