delta logo Radiometer Probes/Electronics

Small, versatile, power probes and electronics

Small and flexible, this series of radiometer probes are the perfect, economical fit for the lab bench, production test bed or on board a laser for measurement of optical power. The user simply plugs a delta probe into an analog power supply (delta-APM) to mate with oscilloscopes and lock-in amplifiers, or plugs it into a digital USB-based electronic module (delta-DPM) to create a complete PC based Radiometer. Powerful LabView software controls range, wavelength, trigger level, graphic displays and much more.

Select from a wide range of standard smart delta probes, including Si, Ge and InGaAs photodiodes or Pyroelectric detectors, covering the spectrum from DUV to FAR IR and even the THz region. Each probe includes an EEPROM that identifies the type of sensor, its voltage response and wavelength correction factors for the digital electronics. You can use multiple radiometer probes with the digital electronic module, eg: Buy one delta-DPM and a variety of detector probes. The SM1 threaded front bezel makes it easy to add windows, optics, fiber optic connectors and much more. For the Pyroelectric Probes you’ll need to use an Optical Chopper, so take a look at our versatile SDC-5000 Digital Optical Chopper.

Delta Radiometer Probes

DPR-A-9 Analog Pyroelectric Radiometer Probe, 9 mm
DPR-D-9 Digital, USB Pyroelectric Radiometer Probe, 9 mm
DSR-D-10 Digital, USB Silicon Radiometer Probe, 10 mm
DGR-D-5 Digital, USB Germanium Radiometer Probe, 5 mm
DIR-D-3 Digital, USB InGaAs Radiometer Probe, 3 mm

Delta Electronic Modules

Delta-APM Analog Power Module
Compatible with Scopes and Lock In Amplifiers, includes 9V Battery operation or AC Battery Eliminator. Use this module for analog operation and a Lock In Amplifier for optimum performance.

Delta-DPM Digital, USB Power Module
Compatible with PC’s, including those running VISTA™. Includes an executable LabView Applications Program that features complete instrument controls, graphic displays, tuning mode and Data Collection. It also includes a complete set of LabView Drivers for custom programming.

Datasheets (Acrobat PDF)


Delta Radiometer Probes/Electronics

Related Products


Delta APM/DPM Power Module

Features:


  • Small, compact probe
  • High performance, low cost
  • Detectors
    • Pyroelectric 0.25 to 15 µm
    • Si, Ge, InGaAs 0.19 to 1.9 µm
  • Detector sizes 3 mm to 9 mm
  • Measure pW to mW
  • Mate to analog or digital electronics
    • Delta-APM Analog Power Module
    • Delta-DPM Digital Power Module
  • LabView Applications Software and drivers for delta-DPM
  • Precise, NIST traceable calibration
  • OEM models available

Software Features:


  • Executable LabView Applications Software
  • Complete instrument controls (range, trigger, wavelength, etc.)
  • Live display in W or W/cm2
  • Full Statistics
  • Graphic display - strip, histogram, tuning
  • Data file collection and analysis



Delta Radiometer Probes/Electronics

. DPR-A-9 DPR-D-9 DSR-D-10 DGR-D-5 DIR-D-3
Specification (@25°C)  
Detector Type Pyro (OB) Pyro (OB) Silicon Germanium InGaAs
Detector Diameter 9 mm 9 mm 10 mm 5 mm 3 mm
Responsivity, Rv 20,000 V/W        
Optimum Chopping Frequency 5 Hz 9 - 11 Hz DC DC DC
Noise Equivalent Power (NEP) 5x10-9/(Hz)1/2        
Power Range: w/ Delta DPM   20 µW - 200 mW 20 nW - 2 mW 20 nW - 2 mW 20 nW - 200 µW
Minimum Power: w/ Delta-DPM   50 nW 10 pW 10 pW 10 pW
Max Average Power 50 mW/cm2 50 mW/cm2 1 mW/cm2 1 mW/cm2 1 mW/cm2
Spectral Range (calibrated) 0.25 - 15 µm 0.25 - 15 µm 0.19 - 1.1 µm 1.0 - 1.7 µm 0.9 -1.6 µm
Spectral Range (uncalibrated) > 15 µm - 3,000 µm > 15 µm - 3,000 µm      
Price in USD CALL or e-mail CALL or e-mail CALL or e-mail CALL or e-mail CALL or e-mail




Delta DPM - Digital Power module

Delta APM - Analog Power Module


Delta Energy Probe