Catalogues - mti-2100-fotonic-sensor

Catalogue MTI- 2100 Fotonic Sensor

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Reflectance Compensated Fotonic Probe

MTI also offers a Fotonic probe design that automatically compensates for large changes in reflectivity of the target being measured. This unique design makes it possible to monitor targets over a dynamic reflectance range of 100:1, while maintaining high resolution and accuracy. The probe consists of three integrated glass fiber bundles. One bundle transmits

probe module's electronics use the difference between the two receive bundles to compensate for reflectivity changes and provide a linear response proportional to probe gap. This concept allows the MTI-2100 to be used in applications where the target is translating or rotating.

Fiber Distribution


		>	/_

	x
	Typical
X	Range
	i

Ü¹

Target Displacement

Probe Dimensions

0.50 in.

■ 54 in.-

L_0.125 in__

^ # Receiving Fiber

0.030 in. O Transmitting Fiber 0.041 in.~T~

light while the other two receive light, with different response characteristics. The

) J0.197 in.


Reflectance Compensated Fotonic Probe Specifications
Probe Tip Diameter in. (mm)	Cable Length	Maximum	Output	Meter Resolution¹ pin. (pm)	Range 1 Characteristics²			Range 2 Characteristics²
Probe Module	Cable Length	Frequency Response (-3 dB) kHz	Signal Noise mV p-p		Sensitivity	Linear Range³mils	Standoff mils	Sensitivity	Linear Range³ Standoff mm mm
Model No. Total Active	In. (mm)	Frequency Response (-3 dB) kHz	Signal Noise mV p-p	Range 1 Range 2	pin. mV	Linear Range³mils	Standoff mils	pm mV	Linear Range³ Standoff mm mm
200RC 0.200 (5.080) ^ J Q'™	54 (1372)	100	60	10 (1)	16	100	100	0.406	2.540 2.540

1. The analog output resolution is a product of the sensitivity and the noise. 2. Nominal value ± 10%. 3. For approximate ± 1% linear range, multiply by 0.75.

Fotonic Edge Probe

target moves between the probes, the amount of light received fluctuates. The MTI-2100 monitors this fluctuation and precisely converts it to a target position. This highly sensitive design provides a larger probe standoff and can resolve measurements to 0.1 uin. (2.5 nanometers).

The Fotonic Edge probe is a specially designed sensor used to determine displacement and position of thin objects. The high frequency response obtained makes it ideal for dynamic measurements of computer drive disks, magnetic tapes, ultrasonic tools and production line applications. Each sensor consists of a transmit and receive fiber-optic bundle located opposite each other. Light is directed past the edge of the target being measured to the receive fiber-optic bundle. As the


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Target Displacement

Bent Tip Probe Configuration

Prism Probe Configura

Iransmit

Transmit

Target

- Receive

Receive

itonic

Edge Probe Specifications

Probe Module

Probe Tip Diameter in. (mm)

Cable Length

Maximum⁵

Output⁵

Meter Resolution^1, ⁴ pin. (pm)

Range 1 Characteristics

Range 2 Characteristics²

Frequency Response

(-3 dB) kHz

Signal Noise mV p-p

Sensitivity

Linear Range³mils (mm)

Standoff mils (mm)

Sensitivity

Linear Range³ Standoff mils (mm) mils (mm)

Model No.

Total Active

in. (mm)

Range 1

Range 2

pin. | pirn mV(mV )

pin. / pm\ mV(mV)

MTI-2047E

0.047 (1.194) 0.027 (0.686)

54 (1372)

100

1.0 (0.01)

0.75 (0.019)

5.0 (0.127)

N/A

0.10 (0.0025)

2.0 (0.051) N/A

MTI-2062E

0.063 (1.600) 0.047 (1.194)

54 (1372)

100

1.0 (0.01)

1.20 (0.031)

7.5 (0.191)

N/A

0.16 (0.004)

2.4 (0.061) N/A

1. The analog output resolution is a product of the sensitivity and the noise. 2. Nominal value ± 10%. 3. For approximate ± 1% linear range, multiply by 0.75. 4. Highest possible meter resolution shown for intrinsic English and intrinsic metric engineering units. Probe module's intrinsic (English or metric) engineering units must be specified at the time probe module is ordered. Alternate engineering units selected via the front panel "UNITS" button offer reduced meter resolution. 5. Actual frequency response and noise levels are dependent upon probe tip separation.