Optopairs 2 .1

2
2 .1
Components for Gas Analysis
RMT Ltd.
Optopairs
Optopairs
Contents
Coordinated Optopairs for NDIR Gas Analyzers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Available Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
OPR Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
OPR1-3439 Optopair (hydrocarbons) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
OPR2-3439 TE cooled Optopairs (hydrocarbons) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
OPR1-3230 Optopairs (methane) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
OPR2-3230 TE cooled Optopairs (methane) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
OPR1-4239 Optopairs (carbon dioxide) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
OPR2-4239 TE cooled Optopairs (carbon dioxide) . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
OPRi Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
OPRi2-3439 Integrated Optopair (hydrocarbons) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
OPRi2-3230 Integrated Optopair (methane) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
OPRi2-4239 TE cooled Integrated Optopair (carbon dioxide) . . . . . . . . . . . . . . . . . . . .14
Dimensional Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Optional Optopairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
How to Select an Optopair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Optopairs
Optopairs
Components for Gas Analysis
Coordinated Optopairs for NDIR Gas Analyzers
RMT offers coordinated pairs (solid state Light Emitters
and Photodetectors) suitable for application in non-dispersive infrared (NDIR) gas analyzers.
The Optopair consists of high-effective Photodetector
and special solid state pulsed Light Emitter.
The spectral response of the Photodetector and spectral
emission of the Light Emitter are precisely coordinated for
effective operation at absorption lines of measured gases.
Additional built-in narrow band filters mounted onto
Photodetector (or/and Light Emitter) provide high selectivity of measuring schemes.
Standard options of the Optopairs are suitable for analyzing of CO2 (carbon dioxide), CH4 (methane), hydrocarbons
mixtures (CnHm). Other gas options are available on
request.
Optopairs with built-in TE cooling and thermostabilization
are presented as standard options, as well as uncooled simpler types.
Two Optopair series are available:
u Optopair consisting of discrete Light Emitter and
Photodetector
u Integrated Optopair consisting of two Light Emitters
and Photodetector assembled in the single TO8
package.
Features
u
u
u
u
u
u
u
No moving parts
Miniature design
Low power consumption
Standard options for a range of measuring
schemes
Long operation lifetime
High speed of response
High selectivity
Available Options
Optopair Type
Measured Gas
Formula
l1, mm
l2, mm
Dl, mm
OPR(i)x-4239
Carbon Dioxide
CO2
4.28
3.90
0.12
OPR(i)x-3439
Hydrocarbons
CnHm
3.42
3.90
0.25
OPR(i)x-3230
Methane
CH4
3.23
3.0
0.08
Notes:
1) Index “i” is valid for integrated type of optopairs
2) Code “x” means uncooled or TE cooled type (see chapter “How to select an Optopair”).
RMT Ltd.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru
5
Optopairs
OPR Series
Components for Gas Analysis
OPR1-3439 Optopair (hydrocarbons)
100
Sensitivity, a.u.
90
80
70
Detector
Filters
60
50
40
30
20
l1
l2
10
0
2,5
3,0
3,5
4,0
Wavelength, m m
4,5
5,0
100
Intensity, a.u.
90
80
Light Emitter
70
The Optopair consists of a special
solid state Light Emitter (light source)
and a dual-channel Photodetector.
The dual-element detector comprises two photosensitive elements, two
built-in narrow band interference filters:
u one filter is near the absorption
band of tested material (base
channel)
u the other one is far from the
absorption band (reference
channel)
The Detector is installed into the
sealed metal-glass package.
The semiconductor Light Emitter is
optimized for the operation of the dualelement Photodetector. It is mounted
into miniature metal package.
60
50
40
30
20
10
l1
l2
0
2,5
3,0
3,5
4,0
Wavelength, m m
4,5
5,0
Spectral Responses of Photodetector with narrow-band Filters and
light Emitter
Optical and Electrical Characteristics
Detector
Sensitive Element size
Distance between elements
Wavelength l1
Wavelength l2
Band Width Dl0.5
Time Constant, t
Detectivity, D*
Measuring Channel,
mm
mm
mm
mm
mm
msec
l1 smxHz1/2xW-1
Reference Channel, l2 smxHz1/2xW-1
2x2
1
3.45
3.90
0.25
<30
1.0x108
1.0x108
l1
Reference Channel, l2
Element Dark Resistance
V/W
V/W
kOhm
Light Emitter
mm
deg
2x2
70
mm
3.75
mm
msec
mW
mW
0.95
<2
85
550
Wavelength l
Band Width Dl0.5
Time Constant, t
Output Power(1) (CW)
Output Power(2) (PW )
1. Iop=80 mA, U=2 V
Sensitivity, SU
Measuring Channel,
Emitting area size
Angle of view
60
60
20...100
2. Iop= 650 mA, U=2 V, Q=15, tp= 4 ms
3. All parameters are referred to 300 K
Information furnished by RMT Ltd is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or
omission. Specifications are subject to change without notice.
6
RMT Ltd.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru
Optopairs
Optopairs
Components for Gas Analysis
OPR2-3439 TE cooled Optopairs (hydrocarbons)
100
Sensitivity, a.u.
90
80
Detector
70
60
Filters
50
one filter is near absorption
band of tested material (base
channel)
u
40
30
l1
20
10
l2
2,5
3,0
3,5
4,0
Wavelength, m m
4,5
5,0
100
90
80
Light Emitter
70
60
50
40
30
20
l2
l1
10
0
2,5
3,0
the other one - is far from the
absorption band (reference channel).
The sensitive elements with filters are placed
onto the cooling surface of a single-stage thermoelectric module.
A thermosensor is used for thermostabilization.
The semiconductor Light Emitter is optimized
for operation of the dual-element Photodetector.
The Light Emitter also is also
onto the cooling surface of a single-stage thermoelectric module
with a thermosensor.
u
0
Intensity, a.u.
The Optopair consists of a special solid state
Light Emitter (light source) and a dual-channel
Photodetector.
The element detector comprises two photosensitive elements, two built-in narrow band
interference filters:
3,5
4,0
Wavelength, m m
4,5
5,0
Spectral Responses of Photodetector with narrow-band Filters and
light Emitter
Optical and Electrical Characteristics
Detector
Sensitive Element size
Distance between elements
Wavelength l1
Wavelength l2
Band Width Dl0.5
Time Constant, t
Detectivity, D*
Measuring Channel,
mm
mm
mm
mm
mm
msec
l1 smxHz1/2xW-1
Reference Channel, l2 smxHz1/2xW-1
2x2
1
3.45
3.90
0.25
<100
3.5x108
3.5x108
l1
Reference Channel, l2
Element Dark Resistance
V/W
V/W
kOhm
Light Emitter
mm
deg
2x2
70
mm
3.85
mm
msec
mW
mW
0.95
<2
110
700
Wavelength l
Band Width Dl0.5
Time Constant, t
Output Power(1) (CW)
Output Power(2) (PW )
1. Iop=80 mA, U=2 V
Sensitivity, SU
Measuring Channel,
Emitting area size
Angle of view
300
300
20...100
2. Iop= 650 mA, U=2 V, Q=15, tp= 4 ms
3. All parameters are referred to 263 K
Information furnished by RMT Ltd is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or
omission. Specifications are subject to change without notice.
RMT Ltd.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru
7
Optopairs
OPR Series
Components for Gas Analysis
OPR1-3230 Optopairs(methane)
100
Detector
90
Sensitivity, a.u.
80
70
60
50
Filters
40
30
20
l2
10
l1
0
2,5
3,0
3,5
4,0
Wavelength, m m
4,5
5,0
100
90
Intensity, a.u.
80
Light Emitter
70
The Optopair consists of a special
solid state Light Emitter (light source)
and a dual-channel Photodetector.
The dual-element detector comprises two photosensitive elements, two
built-in narrow band interference filters:
u one filter is near the absorption
band of tested material (base
channel)
u the other one is far from the
absorption band (reference
channel)
The Detector is installed into
the sealed metal-glass package.
The semiconductor Light Emitter is
optimized for the operation of the dualelement Photodetector. It is mounted
into miniature metal package.
60
50
40
30
20
l1
l2
10
0
2,5
3,0
3,5
4,0
Wavelength, m m
4,5
5,0
Spectral Responses of Photodetector with narrow-band Filters and
light Emitter
Optical and Electrical Characteristics
Detector
Sensitive Element size
Distance between elements
Wavelength l1
Wavelength l2
Band Width Dl0.5
Time Constant, t
Detectivity, D*
Measuring Channel,
mm
mm
mm
mm
mm
msec
l1 smxHz1/2xW-1
Reference Channel, l2 smxHz1/2xW-1
2x2
1
3.23
3.00
0.08
<30
0.4x108
l1
Reference Channel, l2
Element Dark Resistance
V/W
V/W
kOhm
2x2
70
mm
3.3
Band Width Dl0.5
Time Constant, t
Output Power(1) (CW)
mm
msec
mW
0.7
<2
85
Output Power(2) (PW )
mW
550
Wavelength l
0.4x108
1. Iop=80 mA, U=2 V
Sensitivity, SU
Measuring Channel,
Light Emitter
mm
deg
Emitting area size
Angle of view
30
30
20...100
2. Iop= 650 mA, U=2 V, Q=15, tp= 4 ms
3. All parameters are referred to 300 K
Information furnished by RMT Ltd is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or
omission. Specifications are subject to change without notice.
8
RMT Ltd.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru
Optopairs
Optopairs
Components for Gas Analysis
OPR2-3230 TE cooled Optopairs(methane)
100
Detector
Sensitivity, a.u.
90
80
70
60
50
Filters
40
30
20
l2
10
l1
0
2,5
3,0
3,5
4,0
Wavelength, m m
4,5
5,0
100
Intensity, a.u.
90
80
Light Emitter
70
60
50
40
30
20
10
l2
The Optopair consists of a special solid state
Light Emitter (light source) and a dual-channel
Photodetector.
The element detector comprises two photosensitive elements, two built-in narrow band
interference filters:
u
one filter is near absorption
band of tested material (base
channel)
u the other one - is far from the
absorption band (reference channel).
The sensitive elements with filters are placed onto the cooling surface of a single-stage thermoelectric module.
A thermosensor is used for thermostabilization.
The semiconductor Light Emitter is optimized
for operation of the dual-element Photodetector.
The Light Emitter also is also
onto the cooling surface of a single-stage thermoelectric module
with a thermosensor.
l1
0
2,5
3,0
3,5
4,0
Wavelength, m m
4,5
5,0
Spectral Responses of Photodetector with narrow-band Filters and
light Emitter
Optical and Electrical Characteristics
Detector
Sensitive Element size
Distance between elements
Wavelength l1
Wavelength l2
Band Width Dl0.5
Time Constant, t
Detectivity, D*
Measuring Channel,
mm
mm
mm
mm
mm
msec
l1 smxHz1/2xW-1
Reference Channel, l2 smxHz1/2xW-1
2x2
1.0
3.23
3.00
0.08
<100
1.2x108
l1
Reference Channel, l2
Element Dark Resistance
Light Emitter
mm
deg
2x2
70
mm
3.4
mm
msec
mW
mW
0.7
<2
110
700
Wavelength l
Band Width Dl0.5
Time Constant, t
Output Power(1) (CW)
Output Power(2) (PW )
1.2x108
Sensitivity, SU
Measuring Channel,
Emitting area size
Angle of view
1. Iop=80 mA, U=2 V
200
2. Iop= 650 mA, U=2 V, Q=15, tp= 4 ms
V/W
200
3. All parameters are referred to 263 K
kOhm
20...100
V/W
Information furnished by RMT Ltd is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or
omission. Specifications are subject to change without notice.
RMT Ltd.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru
9
Optopairs
OPR Series
Components for Gas Analysis
OPR1-4239 Optopairs(carbon dioxide)
Sensitivity, a.u.
100
90
80
70
The pair consists of a special solid
state Light Emitter (light source) and a
dual-channel Photodetector.
Detector
Filters
60
50
40
30
20
l2
l1
10
0
2,5
3,0
3,5
4,0
Wavelength, m m
4,5
5,0
4,5
5,0
100
Intensity, a.u.
90
80
Light Emitter
70
60
The dual-element detector comprises two photosensitive elements, two
built-in narrow band interference filters:
u one filter is near the absorption
band of tested material (base
channel)
u the other one is far from the
absorption band (reference
channel)
The Detector is installed into the
sealed metal-glass package.
The semiconductor Light Emitter is
optimized for the operation of the dualelement Photodetector. It is mounted
into miniature metal package.
50
40
30
20
l2
10
0
2,5
3,0
l1
3,5
4,0
Wavelength, m m
Spectral Responses of Photodetector with narrow-band Filters
and light Emitter
Optical and Electrical Characteristics
Detector
Sensitive Element size
Distance between elements
Wavelength l1
Wavelength l2
Band Width Dl0.5
Time Constant, t
Detectivity, D*
Measuring Channel,
mm
mm
mm
mm
mm
msec
l1 smxHz1/2xW-1
Reference Channel, l2 smxHz1/2xW-1
2x2
1.0
4.28
3.90
0.12
<10
0.5x108
0.5x108
l1
Reference Channel, l2
Element Dark Resistance
V/W
V/W
kOhm
Light Emitter
mm
deg.
2x2
70
mm
4.15
mm
msec
mW
mW
0.80
<2
80
500
Wavelength l
Band Width Dl0.5
Time Constant, t
Output Power(1) (CW)
Output Power(2) (PW )
1. Iop=80 mA, U=2 V
Sensitivity, SU
Measuring Channel,
Emitting area size
Angle of view
30
30
20...100
2. Iop= 650 mA, U=2 V, Q=15, tp= 4 ms
3. All parameters are referred to 300 K
Information furnished by RMT Ltd is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or
omission. Specifications are subject to change without notice.
10
RMT Ltd.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru
Optopairs
Optopairs
Components for Gas Analysis
OPR2-4239 TE cooled Optopairs(carbon dioxide)
Sensitivity, a.u.
100
90
80
Detector
70
60
50
40
30
Filters
l2
20
10
0
2,5
3,0
Intensity, a.u.
100
90
l1
3,5
4,0
Wavelength, m m
4,5
5,0
Light Emitter
80
70
60
50
40
30
20
l2
10
0
2,5
3,0
The semiconductor Light Emitter is optimized
for operation of the dual-element Photodetector.
The Light Emitter also is also onto the cooling surface of a single-stage thermoelectric module with a thermosensor.
l1
3,5
4,0
Wavelength, m m
The Optopair consists of a special solid state
Light Emitter (light source) and a dual-channel
Photodetector.
The element detector comprises two photosensitive elements, two built-in narrow band
interference filters:
u one filter is near absorption
band of tested material (base
channel)
u the other one - is far from the
absorption band (reference channel).
The sensitive elements with filters are placed onto the cooling surface of a single-stage thermoelectric module.
A thermosensor is used for thermostabilization.
4,5
5,0
Spectral Responses of Photodetector with narrow-band Filters and
Light Emitter
Optical and Electrical Characteristics
Detector
Sensitive Element size
Distance between elements
Wavelength l1
Wavelength l2
Band Width Dl0.5
Time Constant, t
Detectivity, D*
mm
mm
mm
mm
mm
msec
l1 smxHz1/2xW-1
Reference Channel, l2 smxHz1/2xW-1
Measuring Channel,
2x2
1.0
4.28
3.90
0.12
<30
1.5x108
l1
Reference Channel, l2
Element Dark Resistance
Light Emitter
mm
deg
2x2
70
mm
4.30
mm
msec
mW
mW
0.80
<2
100
700
Wavelength l
Band Width Dl0.5
Time Constant, t
Output Power(1) (CW)
Output Power(2) (PW )
1.5x108
Sensitivity, SU
Measuring Channel,
Emitting area size
Angle of view
1. Iop=80 mA, U=2 V
V/W
200
2. Iop= 650 mA, U=2 V, Q=15, tp= 4 ms
V/W
200
3. All parameters are referred to 263 K
kOhm
20...100
Information furnished by RMT Ltd is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or
omission. Specifications are subject to change without notice.
RMT Ltd.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru
11
Optopairs
OPRi Series
Components for Gas Analysis
OPRi2-3439 Integrated Optopair (hydrocarbons)
100
Sensitivity, a.u.
90
80
Detector
Light Emitters
70
60
The integrated device consists of two solid
state Light Emitters (light sources) and one
Photodetector.
Each Light Emitter has built-in narrow band
interference filters:
50
u
40
30
l1
20
10
l2
3,0
3,5
4,0
Wavelength, m m
the other (the second emitter) - is far from
the absorption band (the reference channel).
Detector is the broad-band PbSe photoresistor.
u
0
2,5
one (the first emitter) filter is adjusted to
absorption line of a tested gas (the base
channel)
4,5
5,0
Spectral Responses of Photodetector and Light Emitters with narrow-band filters
The Light Emitters and the Detector are mounted on the same plane at cold side of a miniature
thermoelectric (TE) cooler and integrated in the
single housing.
The TE cooler is used for cooling down and
precise temperature stabilizating of the Detector
and Light Emitters.
The semiconductor Light Emitters are optimized for operation of the Photodetector.
Optical and Electrical Characteristics
Detector
Sensitive Element size
Spectral Range
Wavelength max lmax
Time Constant, t
Detectivity, D*
mm
mm
mm
msec
1.5x5.5
2...4.5
4.0
<100
l1smxHz1/2xW-1 >3.5x108
Reference Channel, l2smxHz1/2xW-1 >3.5x108
Light Emitters
Emitting area size
mm
Distance between elements
mm
Angle of view
deg
Channels
Wavelength l1
mm
Wavelength l2
Measuring Channel,
Sensitivity, SU
l1
At Reference Channel, l2
At Measuring Channel,
Dark Resistance
V/W
V/W
kOhm
1. Iop= 80 mA, U=2 V
2. Iop= 650 mA, U=2 V, Q=15, tp= 4 ms
3. All parameters are referred to 263 K
12
>300
>300
6…30
Band Width Dl0.5
Time Constant, t
Output Power at l1 and l2
CW(1)
Pulsed(2)
2x2
1.0
70
3.4
mm
3.9
mm
0.25
msec
<2
mW
mW
110
700
Information furnished by RMT Ltd is believed to be reliable.
However, no responsibility is assumed for possible inaccuracies or
omission. Specifications are subject to change without notice.
RMT Ltd.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru
Optopairs
Optopairs
Components for Gas Analysis
OPRi2-3230 Integrated Optopair (methane)
100
Detector
Sensitivity, a.u.
90
80
70
60
50
Light Emitters
40
30
20
l2
10
l1
0
2,5
3,0
3,5
4,0
Wavelength, m m
4,5
5,0
Spectral Responses of Photodetector and Light Emitters with narrow-band filters
The integrated device consists of two solid
state Light Emitters (light sources) and one
Photodetector.
Each Light Emitter has built-in narrow band
interference filters:
u one (the first emitter) filter is adjusted to
absorption line of a tested gas (the base
channel)
u the other (the second emitter) - is far from
the absorption band (the reference channel).
Detector is the broad-band PbSe photoresistor.
The Light Emitters and the Detector are mounted on the same plane at cold side of a miniature
thermoelectric (TE) cooler and integrated in the
single housing.
The TE cooler is used for cooling down and
precise temperature stabilizating of the Detector
and Light Emitters.
The semiconductor Light Emitters are optimized for operation of the Photodetector.
Optical and Electrical Characteristics
Detector
Sensitive Element size
Spectral Range
Wavelength max lmax
Time Constant, t
Detectivity, D*
mm
mm
mm
msec
l1smxHz1/2xW-1
Reference Channel, l2smxHz1/2xW-1
Measuring Channel,
l1
At Reference Channel, l2
Dark Resistance
V/W
V/W
kOhm
1. Iop= 80 mA, U=2 V
2. Iop= 650 mA, U=2 V, Q=15, tp= 4 ms
3. All parameters are referred to 263 K
RMT Ltd.
Wavelength l2
>1.2x108
>1.2x108
Sensitivity, SU
At Measuring Channel,
Light Emitters
Emitting area size
mm
Distance between elements
mm
Angle of view
deg.
Channels
Wavelength l1
mm
1.5x5.5
1…3.8
3.2
<100
>200
>200
6…30
Band Width Dl0.5
Time Constant, t
Output Power at l1 and l2
CW(1)
Pulsed(2)
2x2
1.0
70
3.23
mm
3.0
mm
0.08
msec
<2
mW
mW
110
700
Information furnished by RMT Ltd is believed to be reliable.
However, no responsibility is assumed for possible inaccuracies or
omission. Specifications are subject to change without notice.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru
13
Optopairs
OPRi Series
Components for Gas Analysis
OPRi2-4239 TE cooled Integrated Optopair (carbon dioxide)
Sensitivity, a.u.
100
90
80
Detector
70
60
50
40
30
Light Emitters
l2
20
10
0
2,5
3,0
3,5
4,0
Wavelength, m m
l1
4,5
5,0
Spectral Responses of Photodetector and Light Emitters with narrow-band filters
The integrated device consists of two solid
state Light Emitters (light sources) and one
Photodetector.
Each Light Emitter has built-in narrow band
interference filters:
u one (the first emitter) filter is adjusted to
absorption line of a tested gas (the base
channel)
u the other (the second emitter) - is far from
the absorption band (the reference channel).
Detector is the broad-band PbSe photoresistor.
The Light Emitters and the Detector are mounted on the same plane at cold side of a miniature
thermoelectric (TE) cooler and integrated in the
single housing.
The TE cooler is used for cooling down and
precise temperature stabilizating of the Detector
and Light Emitters.
The semiconductor Light Emitters are optimized for operation of the Photodetector.
Optical and Electrical Characteristics
Detector
Sensitive Element size
Spectral Range
Wavelength max lmax
Time Constant, t
Detectivity, D*
mm
mm
mm
msec
1.5x5.5
2...4.5
4.2
<30
l1smxHz1/2xW-1 >1.5x108
Reference Channel, l2smxHz1/2xW-1 >1.5x108
Light Emitters
Emitting area size
mm
Distance between elements
mm
Angle of view
deg.
Channels
Wavelength l1
mm
Wavelength l2
Measuring Channel,
Sensitivity, SU
l1
At Reference Channel, l2
At Measuring Channel,
Dark Resistance
V/W
V/W
kOhm
1. Iop= 80 mA, U=2 V
2. Iop= 650 mA, U=2 V, Q=15, tp= 4 ms
3. All parameters are referred to 263 K
14
>200
>200
6…30
Band Width Dl0.5
Time Constant, t
Output Power at l1 and l2
CW(1)
Pulsed(2)
2x2
1.0
70
4.27
mm
3.9
mm
0.12
msec
<2
mW
mW
100
700
Information furnished by RMT Ltd is believed to be reliable.
However, no responsibility is assumed for possible inaccuracies or
omission. Specifications are subject to change without notice.
RMT Ltd.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru
Optopairs
Optopairs
Components for Gas Analysis
Dimension Outlines (all dimensions are given in mm)
D5-11 Uncooled Optopair
Detector - TO8 housing
Pin
1
2
3
4
5
6
Light Emitter - Standard metal housing
Function
Photoresistor, measuring channel
Not connected
Not connected
Photoresistor, reference channel
Photoresistor, reference channel
Photoresistor, measuring channel
Bottom View
Absolute Maximum Ratings
Detector
Bias Voltage
V
6
Light Emitter
Direct Current,
Pulsed Current,
max
max
mA
A
200
1.5
Information furnished by RMT Ltd is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or
omission. Specifications are subject to change without notice.
RMT Ltd.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru
15
Optopairs
Dimensions
Components for Gas Analysis
Dimension Outlines (all dimensions are given in mm)
D12-12
TE cooled Optopair
Light Emitter - TO8 housing
Detector - TO8 housing
Pin
1
2
3
4
5
6
7
8
9
10
11
12
Function
TE Cooler (-)
Not connected
TE Cooler (+)
Photoresistor, measuring channel
Not connected
Photoresistor, reference channel
Thermistor
Not connected
Thermistor
Photoresistor, reference channel
Ground
Photoresistor, measuring channel
Bottom View
Pin
1
2
3
4
5
6
7
8
9
10
11
12
Function
TE Cooler (-)
Not connected
TE Cooler (+)
LED, cathode
Not connected
LED, anode
Thermistor
Not connected
Thermistor
Not connected
Ground
Not connected
Bottom View
Absolute Maximum Ratings
Detector
Bias Voltage
V
6
Light Emitter
Both
Direct Current,
Pulsed Current, Typical TE Cooler Power near maximal
max
max
cooling
mA
A
Current, A
Voltage, V
1.3
2.2
200
1.5
0.4*
4*
Thermosensor
2.2 kOhm &
-3.4%/deg
Note: * - option for portable applications.
Information furnished by RMT Ltd is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or
omission. Specifications are subject to change without notice.
16
RMT Ltd.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru
Optopairs
Optopairs
Components for Gas Analysis
Dimension Outlines (all dimensions are given in mm)
D17
Integrated TE cooled Optopair
TO8 housing
Pin
1
2
3
4
5
6
7
8
9
10
11
12
Emitter-Detector Plan (top view)
Function
Detector
Not connected
Detector
TE Cooler (-)
Shield
TE Cooler (+)
LED1, cathode
LED1&2, anode
LED2, cathode
Thermistor
Ground
Thermistor
Top View
Absolute Maximum Ratings
Detector
Bias Voltage
V
6
Light Emitter
Both
Direct Current,
Pulsed Current, Typical TE Cooler Power near maximal
max
max
cooling
mA
A
Current, A
Voltage, V
200
1.5
0.4
4
Thermosensor
2.2 kOhm &
-3.4%/deg
Information furnished by RMT Ltd is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or
omission. Specifications are subject to change without notice.
RMT Ltd.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru
17
Optopairs
Optional
Components for Gas Analysis
Optional Optopairs
D4-11
Single element Detectors, standard Light Emitter
Detector - TO5 housing
D15-11
Double-side, dual-element Detector, standard Light Emitters
Detector - metal-glass double side housing
18
Light Emitter - metal housing
Light Emitter - metal housing
RMT Ltd.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru
Optopairs
Optopairs
Components for Gas Analysis
How to Select an Optopair
OPR(i)2-3439-121
Built-in filter
0 - Special Options
1 - FWHM 0.25 mm
2 - FWHM 0.12 mm
3 - FWHM 0.08 mm
TE Cooler option*
0 - No Options (uncooled type)
1 - Standard type
2 - Low currect TEC
Package*
0 - D5-11
1 - D12-12
2 - Special
Wavelength
First element, mm
Wavelength
Second element, mm
Built-in Cooling
1 - Uncooled
2 - Cooled, Single-Stage TEC
3 - Cooled, Two-Stage TEC
Code of Integrated Optopairs
Series designator
Note: * - Is not valid for the OPRi Series (always “0”)
An Example:
OPR2-3439-121
u
u
u
u
TE cooled Optopair
First wavelength - 3.4 mm (hydrocarbions)
Second wavelength - 3.9 mm (reference)
Housing type D12-12:
Detector - D12 housing (TO8 package)
Light Emitter - D12 housing (TO8 package)
u
u
u
u
TE coolers of low current
Built-in narrow band filters with FWHM 0.25 mm.
RMT Ltd.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru
19
Optopairs
Components for Gas Analysis
20
RMT Ltd.
53 Leninskij prosp. Moscow 119991 Russia u phone: 7-095-132-6817 u fax: 7-095-132-5870 u e-mail: [email protected] u http://www.rmtltd.ru