GS-3830A displacement sensor

High resolution type (GS-3813A/GS-3830A):

By adopting new bearings and newly developed optical systems, it is possible to achieve high resolution and performance that can be used in various environments.
Square wave output (line driven output), can be connected to programmable logic controllers (PLCs), etc.

Improved measurement accuracy compared to the original product
(Resolution increased by 10 times from 1 μ m to 0.1 μ m)

Three times the service life of bearings compared to the original product
(The number of measurements has increased from 5 million to 15 million)

Compared to the original product, its waterproof, oil resistant, and dust-proof performance has been improved
(The protection structure has been upgraded from IP64 to IP66G)

Compared to the original product, it has twice the vibration and impact resistance performance
(Vibration resistance 98 m/s)²Raise to 980 m/s², resistant to impact 196 m/s², increased to 1960 m/s²）

When using our company's counter, the data in () represents the data when using DG-5100.
When used in an upward direction, the measuring rod may not fully reset.
The performance values of vibration and impact resistance in the measurement are not guaranteed as shown in the specification table.
The cutting, connection, and modification of signal cables will not comply with CE specifications.

ResistanceVibration mode (vibration resistant, waterproof structure IP64):
GS-6713A、GS-6730A、GS-6813A、GS-6830A
Due to the tight fixation of internal electronic components, the vibration resistance performance is greatly improved.
Using a ball bearing mechanism improves the service life compared to the original product.

Technical parameters:

Longevity type (vibration resistant, oil proof structure IP66G):
GS-4713A、GS-4730A、GS-4813A、GS-4830A
By using a ball bearing mechanism, the bearing strength is significantly improved. The sliding durability is three times that of the original product.
The protection level is IP66G
● Vibration resistance and impact resistance are twice that of the regular type. Flexible response to high-speed measurement requirements and various working environments.

Product features:

Wide range type (GS-5050A/GS-5051A/GS-5100A/GS-5101A):
● Use ball bearing mechanism
The new model adds a range of 100 mm and a resolution of 1 μ m
During installation, set the distance between the position and the endpoint of the measuring rod to be the same as GS-5011.

Technical specifications (range/resolution): GS-5050A（50mm/10um）、GS-5100A（100mm/10um）、GS-5051A（50mm/1um）、GS-5101A（100mm/1um）

Technical parameter table:

When using our company's counters, the data in () is for DG-4140/DG-4160/DG-4190/DG-5100/DG-3000.
When used in an upward direction, the measuring rod may not fully reset.
The performance values of vibration and impact resistance in the measurement are not guaranteed as shown in the specification table.
The cutting, connection, and modification of signal cables will not comply with CE specifications.

Product features:

Ordinary type (universal, waterproof structure IP64)

GS-1713A、GS-1730A、GS-1813A、GS-1830A
● Alternative models for GS-1500/1600 series.
Using a ball bearing mechanism improves the service life compared to the original product.

Technical specifications (range/resolution): GS-1713A（13mm/10um）、GS-1730A（30mm/10um）、GS-1813A（13mm/1um）、GS-1830A（30mm/1um）

Technical parameter table:

※1When using our company's counters, the data in () is for DG-4140/DG-4160/DG-4190/DG-5100/DG-3000.
When used in an upward direction, the measuring rod may not fully reset.
The performance values of vibration and impact resistance in the measurement are not guaranteed as shown in the specification table.
The cutting, connection, and modification of signal cables will not comply with CE specifications.

Guangzhou Chengmin Electronic Technology Co., Ltd. specializes in supplying the full range of measurement and testing instruments from Ono ONOSOKKI in Japan! Partial spot supply!

Ordinary type:GS-1713A、GS-1730A、GS-1813A、GS-1830A

Vibration resistant type:GS-6713A、GS-6730A、GS-6813A、GS-6830A

Vibration resistant and oil proof type:GS-4713A、GS-4730A、GS-4813A、GS-4830A

Wide range type:GS-5050A、GS-5051A、GS-5100A、GS-5101A

High resolution type:GS-3813A、

Ono speed sensor:

IP-292、IP-296、IP-3000A、OM-1200、OM-1500、VP-201、VP-202、FS-540、MP-911、MP-930、MP-935、MP-936、MP-940A、MP-950、MP-954、MP-962、MP-963、MP-992、MP-9100、MP-9120、MP-9200、MP-981、AP-981、MP-9820、LG-9200、MP-911、MP-930、MP-935、MP-936、MP-940A、MP-950、MP-954、MP-962、MP-963、MP-992、MP-9100、MP-9120、MP-9200、

Ono tachometer:

SE-1200、SE-2500、SE-1620、HT-3200、HT-4200、HT-5500、HT-6100、HT-6200、FT-7200、HR-6800、GE-1400、EC-2100

Working principle of digital displacement sensor:

The digital displacement gauge is composed of a digital displacement sensor and a counting indicator.

The digital displacement sensor has a measuring rod fixedly connected to a moving grating, and the moving grating moves simultaneously with the measuring rod. A fixed grating is provided at a certain distance from the moving grating. Each grating is printed with light and dark scales at certain intervals. In order to facilitate counting based on the direction of movement of the measuring rod (+, - direction), two fixed gratings A and B are used, with grating B being offset by 1/4P (wavelength) compared to grating A. The light source is projected onto the photosensitive element through two fixed and moving gratings. (Figure 1)

If the moving grating moves relative to the fixed grating, the light passing through the fixed grating will produce alternating changes in brightness and darkness. At this point, two square wave signals with a phase difference of 90 degrees in the same period can be obtained. Based on the lead or lag of the phase between the signals, the direction of movement of the measuring rod can be determined, and the measured displacement can be calculated by counting the addition and subtraction. (Figure 2)

The output signal of a digital displacement sensor has a 1P (wavelength) of either 4 μ m (resolution of 1 μ m model) or 40 μ m (resolution of 10 μ m model). By multiplying the counter by 4, 1P (wavelength) can be divided into 4 parts for calculation, resulting in a measurement resolution of 1/4P (1 μ m or 10 μ m). (Excluding HS series)

The 1P (wavelength) of GS-7000 series is 2 μ m

Introduction to the working principle of displacement sensors:

Displacement sensors, also known as linear sensors, are divided into inductive displacement sensors, capacitive displacement sensors, photoelectric displacement sensors, ultrasonic displacement sensors, and Hall displacement sensors

A displacement sensor is a linear device belonging to metal induction. After the power is turned on, an alternating magnetic field will be generated on the sensing surface of the switch. When a metal object approaches this sensing surface, eddy currents will be generated in the metal to absorb the energy of the oscillator, causing the output amplitude of the oscillator to decay linearly. Then, based on the change in attenuation, the non-contact detection of the object will be achieved.

Displacement sensors have no sliding contacts, are not affected by non-metallic factors such as dust during operation, and have low power consumption and long lifespan, making them suitable for use in various harsh conditions.

Displacement sensors are mainly used for intelligent control of analog quantities in automated equipment production lines.

The working principle of magnetostrictive linear displacement sensor:

When working, a starting pulse is generated by the electronic circuit inside the electronic chamber. When this starting pulse is transmitted in the waveguide wire, a rotating magnetic field is generated along the direction of the waveguide wire. When this magnetic field meets the * magnetic field in the magnetic ring or floating ball, a magnetostrictive effect is generated, causing the waveguide wire to twist. This twist is sensed and converted into corresponding current pulses by the energy pickup mechanism installed in the electronic chamber. The time difference between the two pulses can be accurately measured by the electronic circuit, and the displacement and liquid level of the measured object can be accurately measured.

This product is mainly used in displacement and liquid level measurement systems that require high measurement accuracy and harsh operating environments. It has the characteristics of high accuracy, good repeatability, stability and reliability, non-contact measurement, long service life, easy installation, and strong environmental adaptability.

Its output signal is a true absolute position output, rather than a proportional or amplified signal, so there is no signal drift or variation, and therefore there is no need for regular recalibration and maintenance like other liquid level sensors; It is precisely because its output signal is an absolute value that even if the power is interrupted and reconnected, it will not pose a problem for data reception, let alone returning to zero.

Compared with other level transmitters or level gauges, it has obvious advantages and can be widely used in industries such as petroleum, chemical, pharmaceutical, food, and beverage to measure and control the level of various liquid tanks. As a displacement sensor, it can not only measure the linear displacement of moving objects, but also simultaneously provide velocity simulation signals of moving objects.

The eddy current sensor is composed of a DJ type preamplifier and an eddy current probe, and it is a proximity sensing system. Due to its long-term reliability, high sensitivity, strong anti-interference ability, non-contact measurement, fast response speed, high temperature resistance, and ability to work continuously in harsh environments such as oil, steam, and water for a long time, the detection is not affected by oil, steam, and other media. It has been widely used in large and medium-sized enterprises such as electricity, petrochemicals, metallurgy, steel, aviation, and aerospace to monitor and protect the shaft displacement, vibration, speed, expansion difference, eccentricity, oil film thickness, etc. of various rotating machinery online, providing holographic dynamic characteristics for precision diagnostic systems and effectively protecting equipment. The eddy current displacement sensor system mainly includes a probe, an extension cable (optional), a preamplifier, and accessories. Wide linear range, good dynamic response, and strong anti-interference ability.

Eddy current sensor is a non-contact displacement sensor based on the principle of high-frequency eddy current effect. The high-frequency current generated in the preamplifier flows into the probe coil from the oscillator, and the coil generates a high-frequency electromagnetic field. When the surface of the tested metal is close to the coil, an induced current, namely eddy current, is generated on the metal surface due to the action of high-frequency electromagnetic field. This current generates an alternating magnetic field in the opposite direction to the coil magnetic field, and the superposition of these two magnetic fields changes the impedance of the original coil. So the change in distance between the probe and the measured metal surface can be measured by the change in impedance of the probe coil. The preamplifier outputs a direct current voltage proportional to the distance based on the change in impedance of the probe coil.