The document summarizes the Mercury TM1200 PCB-mount analog encoders from Electromate. The Mercury 1200 encoder has a small sensor that mounts directly onto a printed circuit board. It provides analog sine/cosine and index window outputs and can achieve high resolution for both linear and rotary position measurement through customer interpolation electronics. Key features include small size, broad alignment tolerances, and ability to achieve resolutions as precise as 0.078um for linear or 4.2 million counts per revolution for rotary.
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Micro e systems_mercury1200_datasheet
1. ELECTROMATE
Toll Free Phone (877) SERVO98
Toll Free Fax (877) SERV099
www.electromate.com
sales@electromate.com
Mercury TM1200 PCB-Mount Analog Encoders
For Customer Interpolation- Resolution to 0.078μm
Reflective Linear and Rotary Encoders
The Mercury 1200 encoder is an analog output system. Designed for PC board mounting, it is available with linear or rotary scales.
Mercury’s space-saving, integrated configuration gives OEM system designers a breakthrough in performance.
Optional features
• Glass scale length or diameter:
Linear lengths from 5mm to 2m
Rotary diameters from 12mm to 108mm
Sensor the
size of a
Dime
Resolution
Determined by Customer
Electronics
Linear: 20μm to 0.078μm
Rotary: 2,500 to 4.2M CPR
Accuracy
Linear: ± 1μm available
± 3μm to ± 5μm standard
Rotary: Up to ± 2.1 arc-sec
Output
Analog Sine/Cosine and
Index Window
System Resolution
Imagine what you can do with this!
OEMs can now use encoders for closed loop control where
it was previously not possible or cost effective. Using your
interpolation electronics, engineers can achieve dramatic
improvements in system speed, throughput, and reliability,
while reducing cost, size and weight. The Mercury 1200 series
kit encoders make it all possible. The analog output sensors
can mount directly on your printed circuit board within an EMI
shielded module. The low Z height of the sensor, only 5.6mm,
opens up exciting design possibilities.
OEMs that want to incorporate our interpolation electronics
can contact MicroE for chip set or daughterboard solutions.
Standard Features
• Small PCB mount sensor
• Sensor is 5.6mm (H) x 11.9mm (W) x 14.9mm (L) and weighs 1.2g
• Fundamental resolution: Linear 20μm; Rotary 2,500 - 16,384 CPR
Interpolated linear resolution up to 0.078μm;
Rotary resolution 2,500 CPR to 4.2M CPR
• Analog output: sine/cosine and Index window
• Bi-directional Index window signal
• Index mark at the center or end of the glass scale (linear)
Table of Contents
System & Sensor pg . 2
Scales pg . 4 - 5
Ordering Information pg. 5
Sold & Serviced By:
2. Sold & Serviced By:
ELECTROMATE
Toll Free Phone (877) SERVO98
Toll Free Fax (877) SERV099
Broader Alignment Tolerances,
Increased Standoff Clearance, Smallest Sensor and More
Why Mercury Encoders Make It Easier To Design High Performance Into Your Equipment
www.electromate.com
sales@electromate.com
Page 2 of 5
Eliminate the Frustration of Touchy
Encoder Alignment
Mercury Solves this Problem for Good
Fussy alignment is no longer a concern. With Mercury’s
patented PurePrecision™ optics, advanced SmartPrecision™
electronics and LED alignment indicators, you can push the
sensor against your reference surface, tighten the screws and
you’re finished. Try that with brand X or Y.
This performance is possible thanks to relaxed alignment
tolerances, particularly in the theta Z axis. Mercury offers a
± 2° sweet spot– that’s a 300% improvement over the best
competitive encoder. And that will result in dramatic savings
in manufacturing costs.
No other commercially available encoder is easier to align,
easier to use, or easier to integrate into your designs.
Theta Z Alignment Tolerance
± 2° ± 0.5° ± 0.006°
Mercury Brand Y Brand X
Alignment Tolerance Comparison**
Mercury* Brand X Brand Y Mercury vs. Best Competitor
Z Standoff ± 0.15mm ± 0.1mm ± 0.1mm Mercury is 50% better
Y ± 0.20mm for linear ± 0.1mm unspecified Mercury is 100% better
>_
± 0.10mm for rotary 19mm dia.
theta X ± 1.0° unspecified ± 1.0°
theta Y ± 2.0° ± 0.1° ± 1.0° Mercury is 100% better
theta Z ± 2.0° ± 0.006° ± 0.5° Mercury is 300% better
*Measured at a constant temperature for one axis at a time with all other axes at their ideal positions.
**Based on published specifications
Mercury Can Reduce System Size and Cost
Mercury’s sensor height is 44% shorter than competitive encoders,
making it easy to fit into your design. This reduction can also cut total
system weight and cost by allowing the use of smaller motors and
stages. Safe system operation is also enhanced thanks to Mercury’s
generous standoff clearance– 200% greater than other encoders.
And it’s standoff tolerance is 50% greater than the best alternative.
This significantly relaxes mechanical system tolerances,
while reducing system costs.
Mechanical Dimension Comparison**
Mercury Brand X Brand Y Mercury vs.
Best Competitor
Mercury
Brand Y
Brand X
Standoff Clearance
Sensor Z height 8.4mm 23mm 15mm 44% better
Standoff clearance 2.4mm 0.5mm 0.8mm 200% better
Standoff tolerance ± 0.15mm ± 0.1mm ± 0.1mm 50% better
System height 11.7mm 28.5mm 15.8mm 26% better
**Based on published specifications
Note: Mecury 1200 is even smaller at 5.6mm sensor height * Dimensions shown illustrate encoder system standoff clearance; see Mercury
Encoder Interface Drawings for correct design reference surfaces.
2.4mm*
± 0.15mm
0.8mm
± 0.1mm
0.5mm
± 0.1mm
3. Page 3 of 5
Maximum Speed
Scale Length/Diameter Maximum Speed*
Linear All Lengths 7200mm/s
Rotary 0.75” 8640 RPM
1.25” 5273 RPM
2.25” 2637 RPM
4.25” 1318 RPM
*Assumes customer electronics have adequate bandwidth
Sold & Serviced By:
Analog Output
Pins 1,2,3 and 4
20μm
20μm Typical
5VDC
90°
Mercury 1200 Outputs
10-pin interface
PIN FUNCTION
1 Sine +
2 Sine -
3 Cosine +
4 Cosine -
5 + 5 V DC
6 Reserved - Do Not Connect
7 Reserved - Do Not Connect
8 Index Window -
9 Index Window +
10 Ground
.162 4.11
.220 5.59
.600 15.24
Mechanical Information - Sensor
.069 1.75
2X 0-80UNC-2B
.295 7.5 .148 3.76
.348 8.85
.096 2.44
.344 8.75
THRU.
.500 12.70
.127 3.22
PIN 1 PIN 5
.330 8.38
.050 1.28
PIN SPACING
.183 4.65 4X R.047 1.19
PIN 6
PIN 10
All Specifications are subject to change. All data is accurate to the best of our knowledge.
MicroE Systems is not responsible for errors.
1.6 V pp
(Differential)
Across 2k Ω
resistor
Index Window
Pin 9
System Specifications
System
Grating Period 20μm
Signal Period 20μm
System Resolution Fundamental resolution: Linear 20μm; Rotary 2,500 - 16,384 CPR
Interpolated resolution determined by customer electronics:
Linear: 20μm - 0.078μm; rotary: 2,500 to 4.2M CPR
Linear Accuracy* Better than ±1μm available; contact MicroE
Better than ±3μm up to 130mm, ±5μm from 155mm to 1m,
±5μm per meter from 1m to 2m
*Maximum peak to peak error over the specified movement when compared to a NIST-traceable laser interferometer standard,
used at room temperature and with MicroE interpolation electronics.
Rotary Accuracy* Scale O.D. Microradians Arc-Seconds
12.00mm ±100 ±21
19.05mm ±63 ±13
31.75mm ±38 ±7.8
57.15mm ±19 ±3.9
107.95mm ±10 ±2.1
*Based on ideal scale mounting concentricity
Sensor Size
W: 12.70mm 0.500"
L: 15.24mm 0.600"
H: 5.59mm 0.220"
Operating and Electrical Specifications
Power Supply 5VDC ±5% @ 33mA
Temperature
Operating: 0 to 70°C
Storage: -20 to 70°C
Humidity: 10 - 90% RH non-condensing
Shock: 1500G 0.5ms half sine
Sensor Weight: 2.6g ( Sensor without cable )
ELECTROMATE
Toll Free Phone (877) SERVO98
Toll Free Fax (877) SERV099
www.electromate.com
sales@electromate.com
4. Scale Specifications
Standard and Customized Scales
Sold & Serviced By:
MicroE Systems offers a wide array of chrome on glass scales for the highest accuracy and best thermal stability. Easy to install, standard
linear and rotary scales meet most application requirements. Customized linear, rotary, and rotary segment scales are available where need-ed.
All scales include an optical index. Mercury's glass scales save time by eliminating motion system calibrations or linearity corrections
Material Soda lime glass
Typical CTE 8ppm/°C
Index Center or End
Measured Length
is always 5 mm less
then total length
Scale Length
Center Index
0.250 [6.35]
Model L18 L30 L55 L80 L105 L130
Scale Length 0.709 [18] 1.181 [30] 2.165 [55] 3.150 [80] 4.134 [105] 5.118 [130]
Measured Length 0.512 [13] 0.984 [25] 1.969 [50] 2.953 [75] 3.937 [100] 4.921 [125]
Page 4 of 5
required by other encoders, and provide better thermal stability than metal tape scales.
Options include:
• Standard linear: 18mm - 2m
• Standard rotary: 12mm - 107.95mm diameter, with or without hubs
• Custom linear*: special lengths, widths, thickness, index mark locations and special low CTE materials
• Custom rotary*: special ID's, OD's (up to 304.8mm), index mark outside the main track and special low CTE materials
• Mounting of hubs for rotary scales: MicroE Systems can mount and align standard, custom, or customer-supplied hubs
• Rotary segments*: any angle range; wide range of radius values
*Custom scales or rotary segments are available in OEM quantities. Contact your local MicroE Systems sales office.
Standard Short Linear Scales
130mm and Shorter
Key: inches[mm]
Scale Length
Custom scales available
All Specifications are subject to change. All data is accurate to the best of our knowledge.
MicroE Systems is not responsible for errors.
Specifications
Accuracy ±3μm standard
±1μm available
Specifications
Accuracy ±5 μm <1m
±5 μm/m >1m
Material Soda lime glass
Typical CTE 8ppm/°C
Index Center or End
Standard Long Linear Scales
155mm and Longer
Key: inches[mm]
Measured Length
is always 5 mm less
then total length
0.098 [2.5]
0.787 [20.00]
End Index Center Index
0.036 [0.9]
End Index
Model L155 L225 L325 L425 L525 L1025 L2025
Scale length 6.102 [155] 8.858 [225] 12.795 [325] 16.732 [425] 20.669 [525] 40.354 [1025] 79.724 [2025]
Measured length 5.906 [150] 8.661 [220] 12.598 [320] 16.535 [420] 20.472 [520] 40.157 [1020] 79.528 [2020]
Custom scales available
ELECTROMATE
Toll Free Phone (877) SERVO98
Toll Free Fax (877) SERV099
www.electromate.com
sales@electromate.com
5. SCALE O.D.
HUB I.D.
OPTICAL DIAMETER
Standard Rotary Scales
HUB THICKNESS
SCALE
PATTERN
MOUNTING
HOLES
Sold & Serviced By:
Specifications
Material Soda lime glass
Typical CTE 8ppm/°C
Key: inches[mm]
Model No. Scale Outer Scale Inner Optical Hub Inner Hub Fundamental
Diameter Diameter Diameter Diameter Thickness CPR
How to Order Mercury 1200 Encoder Systems
To specify your Mercury encoder with the desired scale, consult the chart below to create the correct part number for
your order. Call MicroE Systems’ Rapid Customer Response team for more information [508] 903-5000.
Example (linear): M1200-L55-C1 (Rotary): M1200-R3213-HB
M1200 – Scale Model – Scale Mounting
M1200 Lxxx or Rxxxx For Linear Scales:
T = Tape Mounting
C1 = 3 scale clamps*
C2 = 10 scale clamps**
Hubs for Rotary Scales:
NH = No hub
HE = for R1206
HA = for R1910
HB = for R3213
HC = for R5725
HD = for R10851
* 3 clamps come standard with linear scales up to 130mm
** 10 clamps come standard with linear scales 155mm or longer
All Specifications are subject to change. All data is accurate to the best of our knowledge.
MicroE Systems is not responsible for errors.
+.0005/-0.0000
R1206 0.472 [12.00] 0.250 [6.35] 0.413 [10.50] 0.1253 [3.18] 0.040 [1.02] 1650
R1910 0.750 [19.05] 0.375 [9.52] 0.627 [15.92] 0.1253 [3.183] 0.040 [1.02] 2500
R3213 1.250 [31.75] 0.500 [12.70] 1.027 [26.08] 0.2503 [6.358] 0.050 [1.27] 4096
R5725 2.250 [57.15] 1.000 [25.40] 2.053 [52.15] 0.5003 [12.708] 0.060 [1.52] 8192
R10851 4.250 [107.95] 2.000 [50.80] 4.106 [104.30] 1.0003 [25.408] 0.080 [2.03] 16384
Custom scales available
ELECTROMATE
Toll Free Phone (877) SERVO98
Toll Free Fax (877) SERV099
www.electromate.com
sales@electromate.com