Manufacturer: Suntest Co.,Ltd
Model: GYRHP-MRA

Magnetostrictive Displaiacement Transducer

Model GY Series are “Displacement Transducers” employing magnetostrictive phenomena, especially the Wiedemann effect. An ultra-sonic wave is generated by a moving magnet operating near a magnetostrictive wave guide on which the sonic wave propagates up to the head of the transducer.
The propagation time is precisely measured by state of the art technology and then the absolute displacement transducer is operational.

[ Principle ]

The figure shows the fundamental principle of operation.
When a current pulse like A is given to the wave guide, it generates a circumferential magnetic field on the wave guide, then placement of the movable magnet (polarized axially) as shown, only the axial magnetic field of the magnet affecting the wave guide produces a resultant field as indicated by the dotted line.
The vector combination of these two fields produces torsional strain, a phenomenon known as the Wiedemann Effect.
It is a form of vibration and propagates along the wave guide in the form of a transverse ultra-sonic wave.
The GY series displacement transducers detect the propagation time of the ultra-sonic wave.

GYRHP-MRA Probe

Pressure resistance rod : 70MPa, heavy duty type
(Alli-in-one, analogue output)

GYRHP-MRA, which is different from conventional GY series, achieved pressure-resistant 70MPa (rod) by redesign in head and rod part. Standard of protection grade is IP67, but you can select water-proof type (IP68) or cable conduit type (IP69K) by option. It is all-in-one and its output is voltage or current. With the captive software (GPM), zero and gain adjustment is possible at the user.

• Noise cancellation
• GPM setting

Specifications

• The above mentioned accuracy applies to sensors with an effective stroke of 300mm or more.
• The specification of stroke less than 300mm is equal that of stroke 300mm.

Model No.

① Effective stroke
15〜1000mm

② Head dead zone
50 :50mm (Std.)
□ :□mm (specified by customers)

• Possible Min. length depends on the selected magnet.

③ Tip dead zone
70 : 70mm (in case ⑤ is BA)
100 : 100mm (in case ⑤ is T163)
□ : □mm (specified by customers)

④ Mount / Rod diameter
F12 : pressure-resistant flange, rod Φ12 (Std.)

⑤ Associated magnet
BA : No.2KYN-17-LG (Std.)
T163 : No.T16-M3

• Please consult if you select a magnet of other than above.
• This Model code means only specifying associated magnet, please order separately.

⑥ Cable connection
○△G□◇F :pigtail / cable end : free (Std.)
○△G□◇A :pigtail / cable end : with connector for relay
WP3G□◇F :pigtail of water proof cable / cable end : free
WP3G□◇A :pigtail pf water proof cable / cable end : with connector for relay

○:pigtail type (S : standard, C : cable conduit)
△:cable type (S : standard, H : high temp. cable, R : robot cable, UL : cUL cable)
□:cable length (m)　Max.10m(*)
◇:head shape type (L : radial, S : axial)

(*) In case of using extension cable,
voltage output : sensor cable (m) + extension cable (m) ≦ 10m
current output : sensor cable (m) + extension cable (m) ≦ 100m

⑦ Position output
AD :0〜10V(When magnet moves toward tip, output increase)
AR :10〜0V(When magnet moves toward tip, output decrease)
BD :4〜20mA(When magnet moves toward tip, output increase)
BR :20〜4mA(When magnet moves toward tip, output decrease)
V Z/F :option (specified voltage) (for example V1/5 : 1〜5V)
I Z/F :option (specified current) (for example I5.2/20 : 5.2〜20mA)
【 Z=output at zero position, F=output at full position (tip side) 】

⑧ Option
blank :without option
SRT :SRT option

Dimensions

Dimensions (Radial type)

Dimensions ( Axial type)

Cable