Suntest GY Series GYPS Probe

Manufacturer: Suntest Co.,Ltd
Model: GYPS

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.

GYPS Probe (Analogue / PWM / CANopen/SAEJ1939）

for built-in small hydraulic cylinder

GYPS probe is the sensor for built-in hydraulic cylinder which has analogue output.
The sensor head is compact and the head dead zone is also short, so its total length becomes space saving.
With the dedicated software (GPM), zero and gain adjustment is possible at the user.
Max. effective stroke is 2400mm.

Specifications

Non-linearity	≦±0.1mm (30-250mm) ≦±0.04%FS (251-2000mm) ≦±0.8mm (2001-2400mm)
Resolution	≦0.06mm ＊CANopen:≦0.1mm
Reapeatablity	≦±0.06mm ＊CANopen:≦±0.1mm
Temp. drift	≦±0.006%FS/°C
Voltage output	0.25〜4.75V、0.5〜4.5V 0〜10V (load: Min.2kΩ)
Current output	4〜20mA (load: Max.250Ω)
PWM output	1kHz 5V 95-5% (load : Min.5kΩ)
CANopen	CiA-301 version 4.2 CiA-305 version 3.0.0 DS-406 version 4.2
Power supply	+8〜36VDC (≦0.8W)
Sampling freq.	Std. 1kHz (Total rod length : 1300mm)
Max. Pressure	45MPa (continuous operating pressure)
Operating Temp.	-20°C〜+85°C
Storage temp.	-20°C〜+85°C
Vibration	20G (5〜2000Hz)
Shock	100G (2msec)
IP grade	IP67

(＊): Changed the values for CANopen output. (20230208)

Model No.

① Effective stroke
30mm〜2400mm

② Head dead zone
15 :15mm(Std.)
□ :□mm (option)(specified by customers)

③ Tip dead zone
70 :70mm(Std.)
□ :□mm (option)(specified by customers)

④ Mount / Rod diameter
P :O-ring, rod Φ10 (Std.)

⑤ Associated magnet
＜ Magnet ＞
M3　 :No.3

・Please consult if you select a magnet of the other than above.
・This Model code means only specifying associated magnet.
・Ordering magnet individually.

⑥ Cable connection
SG□F :pigtail / cable end : free
SG□A :pigtail / cable end : with connector for relay
(□ :cable length(m)、Max.10m)(*)
KV□△ :M12 receptacle type
□ :wire length (by 0.01m), Max.0.1m
△ :pin assignment( H: pin assignment “H”, G: pin assignment “G”,
FF: pin assignment “FF”)

(*) In case of using extension cable
Voltage output : sensor cable (m) + extension cable (m) ≦ 10m
Current output : sensor cable (m) + extension cable (m) ≦ 100m
PWM output : sensor cable (m) + extension cable (m) ≦ 10m

⑦ Position output
A1 :0.25〜4.75V (When magnet moves toward tip, output increase.)
A2 :4.75〜0.25V (When magnet moves toward tip, output decrease.)
A3 :0.5〜4.5V (When magnet moves toward tip, output increase.)
A4 :4.5〜0.5V (When magnet moves toward tip, output decrease.)
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.)
PWM1 :1kHz 5V (5〜95%)
PWM2 :1kHz 5V (95〜5%)
CO : CANopen