Optical Micrometers

Optical micrometers use a “shadow” measurement principle whereby collimated laser light is transmitted towards a receiver. The edges of the shadow cast by an object in the beam’s path are accurately measured by the detector array inside the receiver unit. Optical Micrometers are non-contact devices that ideally measure diameters of wires, rods and other cylinders in addition to gaps, edge positions and dimensional characteristics of geometric objects.
The series includes two lines of models:
    RF651 — direct through beam micrometers;
    RF656 — high precision through beam micrometers with telecentric lens;
    RF656XY — high precision two-axis micrometers.

Optical Micrometers RF65x. Specification

RF65x- RF651-25 RF651-50 RF651-75 RF651-100 RF656-5 RF656-10 RF656-25 RF656-50 RF656-75 RF656-100
Measurement range, mm 25 50 75 100 ±1х5 ±3х10 ±5х25 ±7x50 ±9x75 ±10x100
Minimum size of the object, mm 0,5 1 1,5 2 0,05(0,1) 0,1(0,2) 0,25(0,5) 0,5(1) 0,75(1,5) 1(2)
Accuracy* , um ±5 ±10 ±15 ±20 ±0,3 ±0,5 ±1 ±2 ±3 ±5
Measurement frequency, Hz 500 500 500 500 500 2000 2000 2000 2000 2000
Light source LED
Laser safety class 1 (IEC60825-1)
Synchronization input 2,4 – 5 V (CMOS, TTL)
Logic output three outputs, NPN: 100 mA max; 40 V max
Power supply, V 24 (9…36)
Power consumption, W 1,5...2
Housing materia aluminum
Weight (without cable), gram 600 2000 2600 4000 700 700 700 1600 3200 4500
Output interface digital RS232 (max. 921,6 kbit/s) or RS485 (max. 921,6 kbit/s) or Ethernet & (RS32 or RS485)
analog

* typical data obtained when a knife edge was used to interrupt the beam and distance between transmitter and receiver is equal of two measurement range
    

Optical Micrometers RF65xy. Specification

RF65xy RF656xy-5 RF656xy-10
RF656xy-25
RF656xy-50
RF656xy-75
RF656xy-100
Measurement range, mm ±1х5 ±3х10 ±5х25 ±7x50 ±9x75 ±10x100
Minimum size of the object, mm 0,05(0,1) 0,1(0,2) 0,25(0,5) 0,5(1) 0,75(1,5) 1(2)
Accuracy* , um ±0,3 ±0,5 ±1 ±2 ±3 ±5
Measurement frequency, Hz 500 2000 2000 2000 2000 2000
Light source LED
Laser safety class 1 (IEC60825-1)
Synchronization input 2,4 – 5 V (CMOS, TTL)
Logic output three outputs, NPN: 100 mA max; 40 V max
Power supply, V 24 (9…36)
Power consumption, W 1,5...2
Housing materia aluminum
Weight (without cable), gram 1500 1300 2600 6900 10500 13500
Output interface digital RS485 (max. 921,6 kbit/s) or Ethernet & RS485
4…20 mA (load ≤ 500 Ohm) or 0…10 V
analog

* typical data obtained when a knife edge was used to interrupt the beam and distance between transmitter and receiver is equal of two measurement range
 


Model RF651 Operation Principles

The micrometer operation is based on the so-called ‘shadow’ principle. The micrometer consists of two blocks — transmitter, 1 and receiver, 2. Radiation of a LED 3 is collimated by a lens 4. With an object, 5 placed in the collimated beam region, shadow image formed is scanned with a CCD photo-detector array 6. A processor 7 calculates the position (size) of the object from the position of shadow border (s).
Optical micrometers

Model RF656 Operation Principles

The micrometer operation is based on the so-called ‘shadow’ principle. The micrometer consists of two blocks — transmitter, 1 and receiver, 2. Radiation of a red LED 3 is collimated by a lens 4. With an object, 5 placed in the collimated beam region, shadow image formed by telecentric lens 6 and is scanned with a CCD photo-detector array 7. A processor 8 calculates the position (size) of the object from the position of shadow border (s).
Optical micrometers
High precision noncontact measurements:
  • Large Width / Diameter
Large Width / Diameter
  • Gaps
Gaps
  • Dual axis
Dual axis
  • Object/Target Displacements
Object and Target Displacements
  • Object Recognition
Object Recognition
  • Diameter and Profile
Diameter and Profile

Pipe diameter control, SKD-MHs system

Find the deailed information about this device here.

Optical Measurement System

In this application of an optical micrometer, a system accurately measure threaded automobile parts for bench-top inspection and quality assurance. Find the deailed information about this device here.

Order information for Optical Micrometer RF651

RF651-X/L-SERIAL-ANALOG-LOUT-IN-СС-M-AK

Symbol Description
X Measurement range, mm
L The distance between the transmitter and receiver housings, fixed on the beam, mm
SERIAL The type of serial interface: RS232 - 232 or RS485 - 485 or
(Ethernet and RS232) – 232-ET or (Ethernet and RS485) – 485-ET 
ANALOG* Attribute showing the presence of 4…20 mA ( I ) or 0…10V ( U )
LOUT*  Attribute showing the presence of logical outputs
IN Trigger input (input of synchronization) presence
CC  Сable connector - CC
М Cable length, m
AK  Micrometer with protect air knife for windows

* It is possible to order modifications only with the logical output or with the analog output.

Example: RF651-25/50-232-I-IN-СC-3 – measurement range – 25 mm, distance between transmitter and receiver – 50 mm, RS232 serial port, 4…20mA analog output, trigger input is available, cable connector, 3 m cable length.


Order information for Optical Micrometer RF656

RF656-X-SERIAL-ANALOG- LOUT- IN-СС-M-AK

Symbol Description
X Measurement range, mm
L Distance between transmitter and receiver, mm
SERIAL The type of serial interface: RS232 - 232 or RS485 - 485
or (Ethernet and RS232) – 232-ET, or (Ethernet and RS485) – 485-ET 
ANALOG* Attribute showing the presence of 4…20 mA ( I ) or 0…10 V ( U )
LOUT* Attribute showing the presence of 3 logical outputs
IN Trigger input (input of synchronization) presence
CC  Сable connector - CC
М Cable length, m
AK  Micrometer with protect air knife for windows

* It is possible to order modifications only with the logical output or with the analog output.

Example: RF656-25/50-232-I-IN-СС-3 – measurement range – 25 mm, distance between transmitter and receiver – 50 mm, RS232 serial port, 4…20 mA analog output, trigger input is available, cable connector, 3 m cable length.

Order information for Optical Micrometer RF656

RF656XY-X-SERIAL-ANALOG- LOUT- IN-AL-СС-M-AK

Symbol Description
X Measurement range, mm
SERIAL The type of serial interface: RS485 - 485
or (Ethernet and RS485) – 485-ET 
ANALOG* Attribute showing the presence of 4…20 mA ( I ) or 0…10 V ( U )
LOUT* Attribute showing the presence of 3 logical outputs
IN Trigger input (input of synchronization) presence
CC  Сable connector - CC
М Cable length, m
AK  Micrometer with protect air knife for windows

* It is possible to order modifications only with the logical output or with the analog output.

Example: RF656XY-25-485-I-IN-СС-3 – measurement range – 25 mm, RS485 serial port, 4…20 mA analog output, trigger input is available, cable connector, 3 m cable length.

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