High Energy Pyroelectric Sensors
100µJ to 40J
Features
• Sensors with diffuser for high energies and high energy densities
• BF coating for highest damage threshold
• BB coating for spectral flatness
• Wide spectral range. Measure YAG and harmonics and many more.
• Rep rates up to 250Hz
• Measure lasers with pulse widths up to 20ms
• PE50BF-DIFH-C sensor - highest damage threshold
Description:
The PE50BF-DIF-C is a pyroelectric energy meter with a diffuser for concentrated beams. It has a 35mm aperture and can measure energies from 200µJ up to 10J. It can operate at repetition rates up to 250Hz and covers the spectral range from 0.19 - 2.2, 2.94µm. The sensor comes with a standard 1.5 meter cable for connecting to a meter or PC interface.
Model
PE50BF-DIF-C / PE50BF-DIFH-C
PE50BB-DIF-C
Use
Complete calibration curve. Highest damage threshold
Removable diffuser. Spectrally flat
Diffuser
Fixed
Diffuser out
Diffuser in
Aperture mm
Ø35
Ø46
Ø33
Absorber Type
BF with diffuser
BB
BB with diffuser
Spectral Range µm (a)
0.19 – 2.2, 2.94
0.19 – 20
0.4 – 2.5
Surface Reflectivity % approx.
25
5
15
Calibration Accuracy +/-% (a)
3
3
3
Max Pulse Width Setting (d)
1ms
2ms
5ms
10ms
20ms
3ms
10ms
20ms
3ms
10ms
20ms
Energy Scales
10J to 2mJ 10J to 2mJ 10J to
20mJ
10J to 10J to
20mJ 20mJ
10J to 2mJ
10J to 20mJ
10J to 20mJ
40J to 40J to 40J to 8mJ 8mJ 8mJ
Lowest Measurable Energy mJ (c)
0.2
0.4
0.8
0.8
0.8
0.1
0.1
0.2
0.5
5
5
Max Pulse Width ms
1
2
5
10
20
3
10
20
3
10
20
Maximum Pulse Rate pps
250Hz
100Hz
50Hz
40Hz
20Hz
40Hz
10Hz
5Hz
40Hz
10Hz
5Hz
Noise on Lowest Range µJ
40
80
200
200
200
15
15
20
40
60
80
Additional Error with Frequency %
±1%
±1%
±1%
±2%
±2%
±1%
±1%
±1%
±1%
±1%
±1%
Linearity with Energy for >7% of full scale (c)
±2%
±2%
Damage Threshold J/cm2 (b)
PE50BF-DIF-C
PE50BF-DIFH-C
Diffuser out
Diffuser in
<100ns
4
6
0.3
3
1µs
5
8
0.3
3
300µs
20
30
1
10
2ms
60
90
2
20
Maximum Average Power W
25, 40 with optional heat sink
10, 15 with optional heat sink
30, 50 with optional heat sink
Maximum Average Power Density W/cm2
200
10
500
Uniformity over surface
±2.5% over central 20mm
±2% over 70% of diameter
±2.5% over central 20mm
Weight kg
0.25
0.25
Compliance
CE, China RoHS
CE, China RoHS
CE, China RoHS
Version
Part Number
7Z02940
7Z02943
7Z02947
Notes: (a) Calibration accuracy at
various wavelengths as specified
here. At other wavelengths, there
may be an additional error up to
the value given.
At other wavelengths, there may be
an additional error up to the value
given.
Specified wavelengths:
355nm, 532nm, 1064nm
and 2100nm.
Max additional error at
other wavelengths not
specified above: ±2%. <250nm not calibrated
Specified wavelengths: 193nm, 248-266nm, 355nm, 532nm, 1064nm and 2100nm.
Max additional error
at 193nm ±4%. Max
additional error at
other wavelengths
not specified above: ±2%.
Calibrated at 1064nm Max additional error at other wavelengths is ±2%
Calibrated at 1064nm, 532nm and 2100nm only. Calibration accuracy at 2100nm, ±5%.
Notes: (b) For wavelengths >2.1μm, derate to 10% of above values.
For wavelengths below 600nm, derate to60% of given values (for DIFH 50% of given values).
For wavelengths below 240nm, derate to 1J/cm².
For beam size ≤5mm. For 10mm beam, derate DIF to 80% and DIFH to 70% of above.
Notes: (c) With the "user threshold" setting set to minimum. For other settings, the spec is for >7% of full scale or greater than twice the "user threshold", whichever is greater.
The user threshold is not available with LaserStar, Nova/Orion, Pulsar, USBI and Quasar. For these meters, the threshold is set to minimum and the linearity spec is >10% of full scale. The PE-C series will only operate with Nova or Orion meters with an additional adapter Ophir P/N 7Z08272 (see page 105). The adapter can introduce up to 1% additional measurement error.
The user threshold feature allows adjustment of the internal threshold up to 25% of full scale if desired to avoid false triggering in noisy environments.
For further information, see the FAQs on our Website.
Notes: (d) With the LaserStar, Pulsar, USBI, Quasar and Nova/Orion with adapter only 2 of the pulse width settings are available. For the PE-BF models the 1ms and 10ms settings and for the PE-BB model the 3ms and 10ms settings. Furthermore, with the diffuser mounted, the sensor may saturate at lower than the maximum energy in some cases. Therefore it is recommended to use these sensors with the newer meters/PC interfaces.
商品属性 [波长范围] 0.19 – 2.2, 2.94um