2D Optical Micrometers — RIFTEK EUROPE

2D Optical micrometers are designed for non-contact inline two-dimensional batch measurements of linear dimensions, diameters, angles, thread parameters, part shapes, run-out, etc.

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.

The series includes three lines of models:

RF657.2D

RF657R.2D

RF656.2D

RF657.2D Series

Measurement ranges, mm

15х20, 25х35, 40х50, 60х80

Accuracy, um

±0.5 ...±3

Exposure time, us

See detailed specifications →

RF657R.2D Series

Measuring range, diameter, mm

25, 45, 70, 100

Accuracy, um

±0.5 ...±3

Rate, measurement/s

See detailed specifications →

RF656.2D Series

Measurement ranges, mm

8х10, 15х20, 25х35, 40х50

Accuracy, um

±1.5 ...±4.5

Rate, measurement/s

100

See detailed specifications →

Technical characteristics of optical sensors of RF656.2D Series:

RF656.2D	-8x10	-15x20	-25x35	-40x50
Measuring range, mm	8x10	15x20	25x35	40x50
Measurement error, µm	±1.5	±2	±2.5	±4.5
Distance along the axis at which the measurement error is applied, mm	±1	±2	±3	±4
Minimum object size, mm	0.07	0.15	0.2	0.35
Speed, measurements/s	up to 65
Exposure time, us	100
Light source	LED, 630 nm, RED
Overall dimensions, figure	1	2	2	4
Weight, not more, kg	1.1	2.3	2.3	5.6

Technical characteristics of optical sensors of RF657.2D Series:

RF657.2D	-15x20	-25x35	-40x50	-60x80
Measuring range, mm	15x20	25x35	40x50	60x80
Measurement error, µm	±0.8	±1.2	±2	±3
Distance along the axis at which the measurement error is applied, mm	±5	±10	±15	±20
Minimum object size, mm	0.13	0.13	0.2	0.3
Speed, measurements/s	24
Exposure time, us	15
Light source	LED, 525 nm, GREEN
Overall dimensions, figure	5	6	7	8
Weight, not more, kg	5	5.6	10.1	22.3

Technical characteristics of optical sensors of RF657R.2D Series:

RF657R.2D	-25	-45	-70	-100
Measuring range, mm	25	45	70	100
Measurement error, µm	±0.8	±1.2	±2	±3
Distance along the axis at which the measurement error is applied, mm	±5	±10	±15	±20
Minimum object size, mm	0.1	0.13	0.2	0.3
Speed, measurements/s	4
Exposure time, us	15
Light source	LED, 525 nm, GREEN
Overall dimensions, figure	5	6	7	8
Weight, not more, kg	5	5.6	10.13	22.3

General technical characteristics of RF65x.2D optical sensors:

Interface
Basic interface						Ethernet / 1000 Mbps
Synchronization inputs						1 channel
Logic outputs						2 channels (1 channel is used as a strobe of active exposure)
Power supply, V						12...24
Power consumption, not more, W						6
Environmental resistance
Environmental resistance						IP62
Vibration						20 g / 10…1000 Hz, 6 hours for each of XYZ axes
Shock						30 g / 6 ms
Operating ambient temperature, °С						-10…+50
Storage temperature, °С						-20…+80
Relative humidity, %						20-80 (no condensation)
Housing/windows material						aluminum/glass

Technical characteristics of RF65x.2D-SuM controllers:

Parameter	Value
Speed, measurements/s	50 - RF656.2D and 20 - RF657.2D
Interface
Ethernet	3 x GbE, RJ-45 connectors
COM port	4 x RS-232/422/485, DB-9 connectors. Changing the interface type can be done in the BIOS. 2 x RS-232, RJ-45 connectors
USB	4 x USB 3.2 Gen 2 (10 Gb/s) 2 x USB 2.0	6 x USB 3.2 Gen 2 (10 Gb/s)
Display	1 x HDMI 1 x DisplayPort
Power
Power supply, V	12...24
Power consumption, not more, W	60
Standard	AT/ATX, switchable
Environmental resistance
Operating ambient temperature, °С	-20…+60
Storage temperature, °С	-40…+85
Permissible relative humidity during use, %	10-95 (no condensation)
Permissible relative humidity during storage, %	10-95 (no condensation)
Shock	5G/11ms half-sine shock, 100 shocks for each of XYZ axes, IEC68-2-27
Vibration	MIL-STD-810G 514.6C-1 (SSD)
Weight, kg	2.9
Overall dimensions, mm	81 x 150 x 190

Figure 1. RF656.2D-8x10. B=20...100

Figure 2. RF656.2D-25x30. B=20...240

Figure 3. RF656.2D-30x40. B=20...250

Figure 4. RF656.2D-40x50. B=20...500

Figure 5. RF657.2D-15x20 and RF657R.2D-25

Figure 6. RF657.2D-25x35 and RF657R.2D-45

Figure 7. RF657.2D-40x50 and RF657R.2D-70

Figure 8. RF657.2D-60x80 and RF657R.2D-100

Figure 9. RF656.2D-SUM

Structure and operating principle

The operation of the micrometer is based on the so-called "shadow" principle. The main components of the 2D micrometer are an optical sensor and a controller.

The optical sensor of the micrometer consists of two parts - the emitter and the receiver. The light from the LED is collimated by the lens. When a product is placed in the region of a collimated beam, its shadow image is projected by the receiver lens onto the 2D CMOS sensor. According to the location of the shadow border of the image (object profile), the controller calculates the required parameters of the object.

Measurements and tolerance control are made according to the algorithm created by the user. To build the measurement algorithm, a simple and visual tool is proposed - the measurement scheme. The scheme is formed from a library of ready-made blocks. Various combinations of blocks and connections between them allow the user to create an almost unlimited number of measuring functions and measure products of varying complexity. Measurement results can be transmitted via various protocols (Ethernet/IP, Modbus TCP, UDP), as well as to the logical outputs of the micrometer for controlling actuators and signaling the suitability of the product.

Connection options RF65x.2D

Figure. The block diagram of the connection options RF65x.2D

The red box shows the standard set, which includes:

Controller RF656.2D SuM.
Optical sensor RF656.2D of the required range (up to four optical sensors can be connected to one controller).
Ethernet cable for connecting the optical sensor to the controller.
Optical sensor power cable with sync and output lines.
Controller power cable.

The green box shows the service equipment needed to operate the micrometer. A computer or a display with a keyboard connected to the controller is used to parameterize the micrometer, generate measurement schemes, display the result, etc.

The purple box shows the process automation tools (operator panel and/or programmable logic controller) connected to the micrometer controller, if needed.

2D Optical Micrometers. RF656.2D Series.

2D Optical micrometer. Example of the formation of the measurement algorithm.

RF657.2D Optical micrometers. Measurement the geometric parameters of battery cells for electric car batteries.

Example of item designation when ordering

RF65х.2D-R-LP-LS-LI

Symbol	Description
х	6 or 7 or 7R
R	Measuring range of the optical sensor. RF656.2D-(FOV, height x width, mm): · 8x10 · 25x30 · 30x40 · 40x50 RF657.2D-(FOV, height x width, mm): · 25x35 · 40x50 · 60x80 RF657R.2D-(FOV, diameter, mm): · 45 · 70 · 100
LP	The length of the controller power cable, m.
LS	The length of the power and sync cable of the optical sensor, m.
LI	The length of the Ethernet cable, m (max. 100).

Example: RF656.2D-40x50-3-3-10 – optical sensor with measuring range 40x50 mm, controller power cable length 3 m, optical sensor power cable length 3 m, Ethernet cable length 10 m.