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Linear Position Sensors, LVDT Specifications

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Measurement Specifications




   Measurement Range:
 
     The range needed to operate within.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Maximum Usable Range:
 
     The absolute maximum range over which the device can provide sensible readings. Example: LVDTs have a linear range over which the output faithfully and linearly (within reason) tracks the input. They can, however, be used over a larger range, but you would have to calibrate one to use it over this range.
 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
   Operating Temperature:
 
     The temperature range over which the device must operate.
 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
   Accuracy:
 
     The required accuracy of the device.
 
   Search Logic:      All matching products will have a value less than or equal to the specified value.
Electrical Output




   Electrical Output      The type of electrical signal that will be produced.
   Your choices are...
 
      
 
   Analog Current
 
     Often called a transmitter. A current is imposed on the output circuit proportional to the measurement. Feedback is used to provide the appropriate current regardless of line noise, impedance, etc. Useful when sending signals long distances.
 
   Frequency / Modulated Frequency
 
     The output signal is encoded via amplitude modulation (AM), frequency modulation (FM), or some other modulation scheme, but the signal is still analog in nature.
 
   Analog Voltage
 
     Output voltage is a simple (usually linear) function of the measurement.
 
   Serial
 
     A standard digital output protocol (serial) such as RS232, etc.
 
   Parallel
 
     A standard digital output protocol (parallel) such as IEEE488, etc.
 
   Switch / Alarm
 
     An "output" of a change in state of switches or alarms
 
   Other
 
     Any digital output other than the standard serial or parallel signals. Simple TTL logic signals are an example.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
LVDT Type




           
   Your choices are...
 
      
 
   Current Balance: AC-AC
 
     Based on changes in current. AC-in, AC-out
 
   Current Balance: DC-DC
 
     Based on changes in current. DC-in, DC-out
 
   Frequency Based
 
     Based on changes in frequency
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
Probe Configuration




   Push-Force:      For probe-type LVDTs, this describes how the probe end of LVDT is kept in contact with the target.
   Your choices are...
 
      
 
   Spring Actuated
 
      
 
   Pneumatic Force
 
      
 
   Motorized
 
      
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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