Environmentally Friendly Inductive Rotary Encoder High Precision ASIC Circuit Rotary Encoder
Induction Encoder Low Environmental Requirements For High Accuracy And Fast Factory Supply
1. Product overview
Inductive encoder is composed of excitation coil, induction coil and code disk reflector.
The code disk reflector causes magnetic field deflection, and the deflection angle is different at different positions.
The differential induction coil induces the voltage signal associated with the code disk position. The encoder analysis circuit is composed of precision excitation circuit, induction signal collection circuit, high-speed synchronous rectification current, amplification and conditioning circuit, analysis circuit, communication circuit, etc. the sine and cosine induction circuit is composed of two groups of sensor circuits, each group of which is composed of differential sine and cosine.
The two groups of sensor circuits have mutually prime cycle numbers, which can identify the absolute zero position of a single turn and can have partial self-correction function.
The accuracy of inductive encoder is related to its induction principle and diameter. The larger the diameter, the higher the accuracy can be achieved.
At the same time, since it has no bearing, the accuracy is also closely related to the installation. Especially important is the eccentricity of the encoder after installation and the radial runout of the measured shaft. After the inductive encoder is installed, there will be a certain deviation between the encoder and the shaft. In addition, the shaft size and shape error of the customer also increase the eccentricity error.
Eccentricity e, average diameter D of encoder rotor and measurement error ∆φ The relationship between:
∆ = measurement error, unit: angular second
e = eccentric error unit after encoder installation μM (1/2 radial runout)
D = average diameter of encoder, unit mm
M = encoder Center
φ = "Measured" angle
φ’= Measured angle
2. Naming method
| E | l | S | A- | 058- | S | 21 |
| | Type:
I:inductive type
O: photoelectric type
M: magnetoelectric type | Packaging style:
S: integrated packaging;
C: open packaging;
F: separated packaging | Occurrence mode:
A: radial outgoing line 250mm (scattered line);
B: radial outgoing line 500mm (scattered line);
C: axial outgoing line 250mm (scattered line);
C: axial outgoing line 500mm (scattered line) | Outer diameter dimension
25: 16-25mm
36: 35-40mm
58: 55-60mm
87: 80-100mm
130: 120-150mm
300: 300mm | Model output
S: SSI
B: biss-c
R: RS485 (compatible with NRZ)
O: other | Resolution: 17:17bits, 19:19bits, 21:21bits, 23:23bits |
3.Encoder specification
Integrated package
| | EIS 16 | EIS 25 | EIS 37 | EIS 40 | EIS 58 | EIs 9o | EIS 130 |
| External diameter | 16 | 25 | 37 | 40 | 58 | 90 | 130 |
| Internal diameter | 4 | 6 | 10 | 10 | 20 | 50 | 90 |
| Thickness(mm) | 8 | 7 | 8 | 10 | 10 | 10 | 10 |
| Communication | RS485/Biss -C/SSl |
| Maximum speed(rpm) | 6000 | 6000 | 4000 | 4000 | 4000 | 3000 | 1500 |
| Resolution (bits) | 17 | 17/19 | 17/19 | 17/19 | 19/21/23 | 21/23 | 23 |
Package split type
| | EIF37 | EIF 58 | EIF 75 | EIF 90 | EIF 100 | EIF 125 | EIF 150 | EIF 300 |
| External diameter | 37 | 58 | 75 | 90 | 100 | 125 | 150 | 300 |
| Internal diameter | 8 | 12.5 | 25 | 40 | 50 | 75 | 110 | 250 |
| Thickness(mm) | 11.25 | 14.6 | 15.4 | 15.4 | 15.4 | 15.4 | 154 | 16.4 |
| Communication | RS485/Biss -C/SSI |
| Maximum speed(rpm) | 9000 | 9000 | 9000 | 7200 | 7200 | 6000 | 5000 | 4500 |
| Resolution (bits) | 17/19 | 19/21/23 | 21/23 | 21/23 | 21/23 | 23 | 23 | 23 |
Open type
| | EIC25 | ElC40 | EIC 60 | EIlC 100 |
| External diameter | 25 | 40 | 60 | 100 |
| Internal diameter | 10 | 15 | 25 | 50 |
| Thickness(mm) | 6 | 6 | 6 | 8 |
| Communication | RS485/Biss -C/SSl |
| Maximum speed(rpm) | 6000 | 6000 | 4000 | 4000 |
| Resolution (bits) | 17 | 19/21 | 21/23 | 23 |
FAQ
Q: how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment.
Q: what services can we provide?
A: Accepted Delivery Terms: By express or air or sea；
Accepted Payment Currency:USD.
Q: Can I buy one as sample?
A: Of course.
Q: How is your quality control?
A: Our professional QC will check the quality during production and carry out quality test before shipment.
