High Energy Pyroelectric Sensors
20µJ to 10J
Features
• Sensors with diffuser for high energies and high energy densities
• Metallic coating for high repetition rates up to 10kHz
• High damage threshold
• Wide spectral range. Measure YAG and harmonics, 193nm, 248nm and many more
• Measure lasers with pulse widths up to 20ms
The PE50U-DIFH-C is a pyroelectric energy meter with a high damage threshold diffuser for concentrated beams. It has a 35mm aperture and can measure energies from 100µJ up to 10J. It has a damage threshold of 90J/cm² for ms pulses. It can operate at repetition rates up to 10kHz 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
PE50-DIF-C
PE50U-DIFH-C
PE25BF-DIF-C
Use
High rep rate. Complete calibration curve
Complete calibration curve. Highest
damage threshold, 193nm calibration
Complete calibration curve. High damage
threshold
Aperture mm
Ø35
Ø35
Ø20
Absorber Type
Metallic with diffuser
Metallic with diffuser
BF with diffuser
Spectral Range µm (a)
0.19 - 2.2, 2.94
0.19 – 2.2, 2.94
0.24 - 2.2
Surface Reflectivity % approx.
25
25
25
Max Pulse Width Setting (d)
2µs
30µs
500µs
1ms
5ms
2µs
30µs
500µs
1ms
5ms
1ms
2ms
5ms
10ms
20ms
Energy Scales
10J to 200µJ
10J to 200µJ
10J to 2mJ
10J to 2mJ
10J to 20mJ
10J to 2mJ
10J to 2mJ
10J to 2mJ
10J to 2mJ
10J to 20mJ
10J to 2mJ
10J to 2mJ
10J to 20mJ
10J to 20mJ
10J to 20mJ
Lowest Measurable Energy µJ (c)
20
20
100
120
200
100
100
100
100
100
100
150
200
200
300
Max Pulse Width ms
0.002
0.03
0.5
1
5
0.002
0.03
0.5
1
5
1
2
5
10
20
Maximum Pulse Rate pps
10kHz
5kHz
900Hz
450Hz
100Hz
10kHz
5kHz
900Hz
450Hz
100Hz
250Hz
100Hz
50Hz
40Hz
20Hz
Noise on Lowest Range µJ
1
2
20
20
40
10
10
10
10
10
15
30
40
40
60
Additional Error with
Frequency %
±2% to
2kHz
to 5kHz
±2%
±1% to
750Hz
±2% to
400Hz
±1% to
80Hz
±1.5%
±1.5%
±1% to
900Hz
±1% to
450Hz
±1% to
100Hz
±1%
±1%
±1%
±1%
±2%
Linearity with Energy for >10% of
full scale (c)
Damage Threshold J/cm2 (b)
<100ns
1
2
4
1µs
2
6
5
300µs
20
30
20
2ms
40
90
60
Maximum Average Power W
25, 40 with optional heat sink
25, 40 with optional heat sink
20, 30 with optional heat sink
Maximum Average Power Density W/cm2
100
200
120
Uniformity over surface
±2.5% over central 20mm
±2.5% over central 20mm
±2.5% over central 10mm
Weight kg
0.25
0.25
0.25
Compliance
CE, China RoHS
CE, China RoHS
CE, China RoHS
Version
Part Number
7Z02939
7Z02957
7Z02941
Notes: (a) Calibration curve is verified and
adjusted at specified wavelengths.
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%.
Specified wavelengths:
193nm, 248-266nm, 355nm, 532nm, 1064nm, 2100nm
and 2940nm.
Max additional error at 193nm ±4%.
Max additional error at other wavelengths not specified
above: ±2%
193nm reading may need 1min irradiation to stabilize.
Specified wavelengths:
355nm, 532nm, 1064nm and 2100nm.
Max additional error at other wavelengths not specified
above: ±2%.
Notes: (b)
For wavelengths >2.1µm, derate to 40% of above values.
For beam size ≤5mm. For 10mm beam, derate to 40% of above value
For wavelengths >2.1µm, derate to 40% of above values.
For beam size ≤5mm. For 10mm beam, derate to 40% of above values.
For <100ns and wavelengths <240nm, derate by 50%.
For wavelengths below 600nm, derate to 60% of given values.
For beam size ≤4mm. For 8mm beam, derate to 50% of above values.
Notes: (c) With the "user threshold" setting set to minimum. For other settings, the spec is for >10% 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 out of 5 pulse widths settings are available; for the PE50-DIF-C and PE50U-DIFH-C models the 2µs (displayed as “30µs”) and 1ms settings, and for the PE25BF-DIF-C model the 1ms and 10ms settings.
font
商品属性 [波长范围] 0.19 - 2.2, 2.94um