Rotary Variable Inductance Transducers

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Product Code : RVIT-15-120i

Price And Quantity

Minimum Order Quantity
1 Piece
Price Range
20000.00 - 100000.00 INR

Product Specifications

Voltage
4.0 to 5.5 Volt (v)
Color
Black

Application
Ball valve position and Throttle level feedback
Operating Temperature
-67 to +257 Fahrenheit (oF)

Product Description

The RVIT 15-60 and RVIT 15-120i are DC operated, non-contact, angular position sensors featuring MEAS proprietary RVIT (Rotary Variable Inductance Transducer) technology. Operating from a single rail DC voltage supply, they provide either a +3VDC (RVIT 15-60) or 4-20mA (RVIT 15-120i) output, over a 120 degree angular sensing range.

The RVIT design utilizes a set of four printed circuit coils and a light-weight conductive spoiler to achieve superior performance with a low moment of inertia. During operation, the light weight spoiler rotates with the transducer shaft, differentially altering the inductance of the printed circuit planar coils. The resulting unbalance is precisely measured using a patented autoplex circuit. This signal is then converted to a linear DC output voltage, proportional to the angle of the rotor shaft. The digital circuit is extremely resistant to environmental disturbances such as EMI and RFI, and is compatible for use with most analog position feedback systems.

The RVIT 15-60 and RVIT 15-120i offer exceptional performance at a competitive price along with the interfacing flexibility of the +3 VDC and 4-20 mA outputs. The RVIT 15-60 emulates a potentiometer in that the output voltage is ratiometric to the supply voltage, within the limits of the specification. Other standard features include a wide operating temperature range, infinite resolution, and an extremely long rotational life. For higher volume applications, specialized options include special angular sensing ranges, and custom unipolar or bipolar output voltage scaling.

Also see our other DC operated, angular position sensor models, R60D (bipolar DC operation, servo size 11 RVIT), R120LC (5VDC operation, low cost RVIT) and R30D (bipolar DC operated RVDT).

Details :

DC operation
Non-contact design
Infinite resolution
+60 degree sensing range
+3VDC ratiometric or 4-20mA output
+0.25% linearity
Size 15 servo or flange mount
Anodized aluminum housing

Features :

Extremely long rotational life
Internal voltage regulation
Shielded ABEC 3 precision bearings
Rugged aluminum housing
Flange mount with shaft seal (optional)

Application :

Ball valve position
Throttle level feedback
Rotary actuator feedback
Dancer arm position
Reeler / Dereeler

Electrical Specifications :

Parameter	RVIT 15-60	RVIT 15-120i
Angular Range	+60 degrees	0 to 120 degrees
Input voltage	4.0 to 5.5VDC)	10 to 28VDC (not to exceed 30VDC)
Input current	14mA	41mA
Sensitivity	10mV/V/degree (ratiometric to input voltage)	0.133mA/degree
Output at range ends	+3.0VDC (ratiometric to input voltage)	1 to 5VDC (with 250 load)
Output current	2mA	4 to 20mA
Output impedance	1 maximum	250 maximum
Temp coefficient of output	+0.02% of FSO per ^oF [0.036% of FSO per ^oC], over operating temperature range
Non-linearity	+0.25% of FR
Repeatability & hysteresis	0.1% of FRO maximum
Frequency response	25Hz @ -3dB

Environmental And Mechanical Specifications :

Temperature range	0^oF to +170^oF [-18^oC to 77^oC] Operating; -67^oF to +257^oF [-55^oC to 125^oC] Storage
Mechanical angular range	360 degrees (no stops)
Bearings	ABEC 3 precision, matched and preloaded
Shaft diameter	3/16 inch [4.76mm]
Housing material	Aluminum, black anodize
Mounting	Size 15 servo mount BU-ORD (standard) or Flange mount with shaft seal (with accessory)
Maximum torque	0.12 inch.ounce-force [8.6 gram-force.cm]
Shaft load capability	10 lb [4.5Kg] Axial and Radial
Electrical connection	3 conductor cable, AWG 26, under PVC jacket, 12 inches [30cm] long
Weight	2.5 oz [70grams]