Detectores

Un cabezal detector comprende uno o varios fotodiodos, cada uno de ellos con un filtro óptico de paso de banda, un difusor, un conjunto de lentes, una esfera de integración u otros elementos ópticos. Los cabezales detectores se calibran en el laboratorio de calibración de Gigahertz Optik GmbH.

Esta gama modular de fotómetros y radiómetros de banda ancha ofrece la posibilidad de una configuración individual. Los clientes pueden elegir entre una amplia selección de optómetros, amplificadores, cabezales detectores y accesorios. Además de sus productos estándar, Gigahertz-Optik también ofrece soluciones personalizadas.

Paso 1: Como primer paso recomendamos la selección de un cabezal detector. También es posible utilizar varios cabezales detectores, que pueden usarse indistintamente con medidores monocanales o simultáneamente con medidores multicanales. Los criterios de selección de un cabezal detector incluyen la cantidad y el rango de medición necesarios, su función espectral y todos los demás parámetros relevantes para el uso previsto.

Paso 2: En el segundo paso, se pueden seleccionar accesorios como, por ejemplo, una esfera integradora. Si el accesorio modifica la geometría y la capacidad de respuesta del cabezal detector, deberá seleccionarse una calibración adicional para el cabezal detector con accesorios en la magnitud correspondiente.

Paso 3: En el tercer paso, se selecciona el metro. El uso previsto (por ejemplo, móvil, estacionario, manual o por control remoto), el número de canales de señal, el modo de medición (CW, dosis, energía de pulso, progresión temporal del pulso) son criterios de decisión.

Paso 4: La conexión del dispositivo de medición para el cabezal detector determina el tipo de conector del cabezal detector. Los detectores de Gigahertz -Optik están diseñados con conectores de los cuatro tipos siguientes:

Tipo de conector -1: Conector coaxial BNC convencional
Conector Tipo -2: Conector de datos de calibración con Eeprom para almacenar los datos de los detectores (tipo, responsividad calibrada) leídos por el medidor conectado.
Conector Tipo -4: Clavija compacta para cabezales de detectores con hasta cuatro fotodiodos.
Conector Tipo -5: Clavija compacta con Eeprom de calibración

Paso 5: Para determinar el rango de medición de una configuración seleccionada, se requieren algunas especificaciones del cabezal detector y del medidor seleccionados. La sensibilidad típica (por ejemplo, A/lx) y la corriente de señal máxima admisible del cabezal detector y la señal de entrada mínima y máxima del rango de medición del medidor.

Límite de detección (potencia equivalente al ruido, N.E.P.) = Señal de entrada mínima del medidor (A) / sensibilidad típica del detector (por ejemplo, 0,1 pA / 3 nA / (mW / cm²) = 0,33 nW / cm². (*¹) (*²)

Lectura máxima = señal de entrada máxima del medidor (A) / sensibilidad típica del detector (por ejemplo, 20 μA / 3 nA / (mW / cm²) = 6,66 W / cm². (*³)

Observaciones:

(*¹) El valor mínimo medible del luxómetro o radiómetro de banda ancha resulta de la relación señal/ruido (SNR) deseada. Para un luxómetro DIN Clase A, por ejemplo, se indica una SNR mínima de 100. Para el cabezal detector del ejemplo de cálculo, una SNR de 100 significaría un valor mínimo medible de 33 nW / cm². Para aplicaciones en el área límite de la tecnología de medición de la radiación óptica, es habitual utilizar una SNR inferior, de 50 o incluso de 10.

(*²) En el caso de señales de corriente del detector muy bajas, los movimientos del cable entre el cabezal del detector y el medidor pueden dar lugar a señales de interferencia cortas y capacitivas. Además, los efectos de la tensión en el enchufe del cabezal detector pueden aumentar la señal de ruido.

(*³) El valor máximo de medición calculado refleja el gran rango dinámico de los fotodiodos semiconductores. Sin embargo, en la aplicación práctica, el valor máximo medible suele estar limitado por la radiación de temperatura contenida en la radiación óptica medida, lo que supondría un calentamiento inaceptable del cabezal detector.

Photometric detector heads

Model	Measured quantity	Spectral function	Typical responsivity	Input optics / size	FOV or Aperture	Remarks
VL-3701	Illuminance (lux)	Photopic; f1 ≤ 3%	0.5 nA/lx	Diffuser / 7mmØ	Cosine; f2 ≤ 1.5%	DIN 5032 Class A precision photometric. Suitable for measuring white LEDs
VL-3702	Illuminance (lux)	Photopic; f1 ≤ 6%	0.5 nA/lx	Diffuser / 7mmØ	Cosine; f2 ≤ 3%	DIN 5032 Class B photometric
VL-3704	Illuminance (lux)	Photopic; f1 ≤ 5%	20 pA/lx	Diffuser / 7mmØ	Cosine; f2 ≤ 3%	Typically used with X1 / P-9802 optometers
VL-3705	Illuminance (lux)	Scotopic; f1 ≤ 5%	0.3 nA/lx	Diffusor / 7mmØ	Cosine; f2 ≤ 3%	DIN 5032 Class B scotopic specification
VL-3707	Illuminance (lux)	Photopic	12 nA / lx	Diffuser	Cosine	For very low light level, from <100 μlx to > 80,000 lx
VL-3701 with SRT-M37-L1	Luminance (cd/m²)	Photopic	1.2 pA/(cd/m²)	Lens / 22.4 mmØ	1° FOV divergent	Spot luminance measurement of large illuminated areas
VL-3701 with SRT-M37-L2	Luminance (cd/m²)	Photopic	5 pA/(cd/m²)	Lens / 22.4 mmØ	2° FOV divergent	Spot luminance measurement of large illuminated areas
VL-3701 with SRT-M37-L5	Luminance (cd/m²)	Photopic	30 pA/(cd/m²)	Lens / 22.4 mmØ	5° FOV divergent	Spot luminance measurement of large illuminated areas
LDM-9901	Luminance (cd/m²)	Photopic, f1 ≤ 5 %	25 pA/(cd/m²)	Lens / 22 mm Ø	1.1° FOV
LDM-9811 with PD-16-VL	Luminance (cd/m²)	Photopic				See detailed specification in the data sheet
ISD-5-VL	luminous flux (lm)	Photopic, f1 ≤ 5 %	25 nA/lm	Sphere / 50 mmØ	12mmØ	2-Pi luminous flux measurement e.g. of endoscopes
ISD-10-VL	luminous flux (lm)	Photopic, f1 ≤ 5 %	50 nA/lm	Sphere / 100 mmØ	15mmØ
ISD-15P-VL	luminous flux (lm)	Photopic, f1 ≤ 5 %	25 nA/lm	Sphere / 150 mmØ	38.1 mm Ø

High Sensitivity broadband UV Irradiance Detectors

Model	Measured quantity	Spectral function	Wavelength range (nm)	Typical responsivity	Input Optic / Size (mm)	Remarks
UV-3701	Irradiance (W/m²)	UV-A	UV-A 315-400 nm	4 nA/(W/m²)	Diffuser / 11mmØ	CIE / DIN defined UV-A range
UV-3702	Irradiance (W/m²)	UV-B	UV-B 280-315 nm	1.7 nA/(W/m²)	Diffuser / 11mmØ	CIE / DIN defined UV-B range
UV-3703	Irradiance (W/m²)	UV-C	UV-C (200)250-280 nm	2 nA/(W/m²)	Diffuser / 11mmØ	CIE / DIN UV-C from 250 nm
UV-3710	Irradiance (W/m²)	UV-A	UV-A (320 - 400) nm	7 nA/(W/m²)	Diffuser / 11mmØ	Alternative UV-A range (e.g. non-biological applications)
UV-3711	Irradiance (W/m²)	UV-B	UV-B 280-320 nm	3 nA/(W/m²)	Diffuser / 11mmØ	Alternative UV-B range (e.g. non-biological applications)
UV-3711-308	Irradiance (W/m²)	UV-B 308nm	UV-B 308 nm	3 nA/(W/m²)	Diffuser / 11mmØ	UV-B detector for Excimer sources
UV-3716	Irradiance (W/m²)	UV-A	UV-A 305-400 nm	10 nA/(W/m²)	Diffuser / 11mmØ	Alternative UV-A range
UV-3717	Irradiance (W/m²)	UV-A, visible blind	UV-A (325 - 400) nm	1 nA/(W/m²)	Diffuser / 11mmØ	Highest blocking of visible radiation
UV-3718	Irradiance (W/m²)	Narrowband UV-C	UV-C 254 nm	2 nA/(W/m²)	Diffuser / 11mmØ	High intensity UV-C 254nm sources
UV-3719	Irradiance (W/m²)	Broadband UV	UV 250 nm - 400 nm	1.9 nA/(W/m²)	Diffuser / 11mmØ	Broadband UV radiation
UV-3720	Irradiance (W/m²)	UV-BC	UV 240 nm - 320 nm	260 pA/(W/m²)	Diffuser / 11mmØ	UV-B and UV-C reponsivity
UV-3725	Irradiance (W/m²)	Narrowband UV-C	UV-C 254 nm	2 nA/(W/m²)	Diffuser / 11mmØ	Wide dynamic range UV-C 254nm e.g. for air disinfection
UV-3726	Irradiance (W/m²)	UV-C	UV 240 nm - 320 nm	50 µA / (W / cm2) @254nm	11 mm Ø diffuser	Low pressure Hg lamps (254 nm) and UV LEDs (250-300 nm)
UV-3727	Irradiance (W/m²)	UV-C / B (200 - 310 nm)	UV 200 nm - 310 nm	57.5 µA / (W / cm2) @254 nm	19.2 mm Ø diffuser	Excimer lamps (222nm), Low pressure Hg lamps (254 nm) and UV LEDs (250-300 nm)
UV-37 with SRT-M37-L-UV	Radiance (W/(m²sr))	Detector head dependent				Front lenses for UV-37 detectors 22.4 mmØ; 1°, 2°, 5° or 10° FOV divergent

Smart detector for UV to Blue LEDs with wavelength detection

Model	Image	Measured quantity	Wavelength Range / nm	Irradiance Range	Input Optic / Size (mm)	Remarks
MDC4-1-UV		Irradiance (W/m²)	220 nm - 400 nm	@222 nm: 41 W/cm² @254 nm: 19 W/cm² @270 nm: 15 W/cm² @280 nm: 14 W/cm² @340 nm: 10 W/cm² @365 nm: 9 W/cm²	5mm diffuser, cos FOV, f2<5%	Low measurement errors and easy to use integral detector due to automatic wavelength detection (centroid wavelength).
MDC4-1-UVBLUE		Irradiance (W/m²)	300 nm - 700 nm	@270 nm: 22 W/cm² @365 nm: 7,6 W/cm² @385 nm: 6 W/cm² @405 nm: 5 W/cm² @435 nm: 4,2 W/cm² @460 nm: 3,8 W/cm² @700 nm: 12,8 W/cm²	5mm Diffuser, Cosine FOV, f2<5%	Low measurement errors and easy to use integral detector due to automatic wavelength detection (centroid wavelength).

High intensity/temperature UV-Blue Curing Detectors (max. temp +100°C. max irradiance 40 W/cm²)

Model	Spectral function	Wavelength range / nm	Typical responsivity	Input Optic / Size (mm)	F.O.V.	Remark
RCH-102	UV-A Blue	(320 - 460) nm	0.6 nA/(mW/cm²) @ 405 nm LED	Diffuser / 9mmØ	Cosine	For medium pressure UV lamps. Rigid light guide.
RCH-106	Broadband UV	(250 - 400) nm	1.8 nA/(mW/cm²) @ 365 nm LED	Diffuser / 9mmØ	Cosine	For medium pressure UV lamps. Rigid light guide.
RCH-108	Narrowband UV-A	365 nm peak	0.5 nA/(mW/cm²) @ Medium pressure lamp	Diffuser / 9mmØ	Cosine	For medium pressure UV lamps. Rigid light guide.
RCH-109	Narrowband Blue	430 nm peak	0.4 nA/(mW/cm²) @ Medium pressure lamp	Diffuser / 9mmØ	Cosine	For medium pressure UV lamps. Rigid light guide.
RCH-110	UV-BC	(240 - 320) nm	0.7 nA/(mW/cm²) @ 254 nm	Diffuser / 9mmØ	Cosine	For medium pressure UV lamps. Rigid light guide.
RCH-111	Narrowband UV-A	(350 - 400) nm	1.6 nA/(mW/cm²) @ 365 nm LED	Diffuser / 9mmØ	Cosine	For medium pressureUV lamps. Rigid light guide.
RCH-112	Blue	(400 - 450) nm	3.1 nA/(mW/cm²) @ Medium pressure lamp	Diffuser / 9mmØ	Cosine	For medium pressure UV lamps. Rigid light guide.
RCH-113	UV-VIS	(305 - 485) nm	0.5 nA/(mW/cm²) @ 365 nm LED	Diffuser / 9mmØ	Cosine	For medium pressure UV lamps. Rigid light guide.
RCH-116	UV-A Blue	(350 - 450) nm	1.8 nA/(mW/cm²) @ 365 nm LED	Diffuser / 9mmØ	Cosine	LED-Sources @ 365, 375, 385, 395, 405 & 430 nm. Rigid light guide.
RCH-117	Red-NIR	(650 - 970) nm		Diffuser / 9mmØ	Cosine	For Red-NIR LED sources. Rigid light guide.
RCH-119	UV-A Blue	(330 - 480) nm		Diffuser / 9mmØ	Cosine	For UV-A and Blue LEDs. Rigid lightguide.
RCH-002	UV-A Blue	(320 - 460) nm	0.6 nA/(mW/cm²) @ 405 nm LED	Diffuser / 9mmØ	Cosine	For medium pressure UV lamps. Flexible light guide.
RCH-006	Broadband UV	(250 - 400) nm	1.8 nA/(mW/cm²) @ 365 nm LED	Diffuser / 9mmØ	Cosine	For medium pressure UV lamps. Flexible light guide.
RCH-008	Narrowband UV-A	365 nm peak	0.5 nA/(mW/cm²) @ Medium pressure lamp	Diffuser / 9mmØ	Cosine	For medium pressure UV lamps. Flexible light guide.
RCH-009	Narrowband Blue	430 nm peak	0.4 nA/(mW/cm²) @ Medium pressure lamp	Diffuser / 9mmØ	Cosine	For medium pressure UV lamps. Flexible light guide.
RCH-010	UV-BC	(240 - 320) nm	0.7 nA/(mW/cm²) @ 254 nm	Diffuser / 9mmØ	Cosine	For medium pressure UV lamps. Flexible light guide.
RCH-011	Narrowband UV-A	(350 - 400) nm	1.6 nA/(mW/cm²) @ 365 nm LED	Diffuser / 9mmØ	Cosine	For medium pressure UV lamps. Flexible light guide.
RCH-012	Blue	(400 - 450) nm	3.1 nA/(mW/cm²) @ Medium pressure lamp	Diffuser / 9mmØ	Cosine	For medium pressure UV lamps. Flexible light guide.
RCH-013	UV-VIS	(305 - 485) nm	0.5 nA/(mW/cm²) @ 365 nm LED	Diffuser / 9mmØ	Cosine	For medium pressure UV lamps. Flexible light guide.
RCH-016	UV-A Blue	(350 - 450) nm	1.8 nA/(mW/cm²) @ 365 nm LED	Diffuser / 9mmØ	Cosine	LED-Sources @ 365, 375, 385, 395, 405 & 430 nm. Flexible light guide.
RCH-017	Red-NIR	(650 - 970) nm		Diffuser / 9mmØ	Cosine	For Red-NIR LED sources. Flexible light guide.
RCH-019	UV-A Blue	(330 - 480) nm		Diffuser / 9mmØ	Cosine	For UV-A and Blue LED sources. Flexible light guide.

High sensitivity broadband Visible-NIR irradiance detectors

Model	Measured quantity	Spectral function	Wavelength range / nm	Typical responsivity	Input Optic / Size (mm)	Remark
RW-3701	Irradiance (W/m²)	Radiometric Blue	radiometric (400 - 500) nm	35 nA/(W/m²)	Diffuser / 11mmØ
RW-3702	Irradiance (W/m²)	Radiometric Red	radiometric (700 - 800) nm	400 nA/(W/m²)	Diffuser / 11mmØ
RW-3703	Irradiance (W/m²)	Radiometric VIS	radiometric (400 - 800) nm	1.5 nA/(W/m²)	Diffuser / 11mmØ
RW-3704	Irradiance (W/m²)	Radiometric NIR	radiometric (800 - 1000) nm	40 nA/(W/m²)	Diffuser / 11mmØ
RW-3705	Irradiance (W/m²)	Radiometric VISNIR	radiometric (400 - 1000) nm	10 nA/(W/m²)	Diffuser / 11mmØ
RW-3708	Irradiance (W/m²)	Radiometric NIR	radiometric (1000 - 1700) nm	40 nA/(W/m²)	Diffuser / 11mmØ
RW-37 with SRT-M37-L	Radiance (W/(m²sr))	Detector head dependent			Diffuser / 11mmØ	Front lenses for RW-37 detectors

Multi-channel irradiance & illuminance detectors

Model	Wavelength range / nm	Typical responsivity	Input Optic / Size (mm)	Remark
XD-9501	CH1: UV-A 315 nm - 400 nm CH2: UV-B 280 nm - 315 nm	17nA/(W/m²) 2.5nA/(W/m²)	Diffuser / 8mmØ	UV Phototherapy, with 311nm calibration
XD-9502	CH1: UV-A (315 - 400) nm CH2: Photopic; f₁≤ 6% (380 - 780) nm	Ch1: 10nA/(W/m²) Ch2: 0.05 nA/lx	Diffuser / 8mmØ	NDT testing UV-A + lux
XD-9503	CH1: UV-A Peak 380 nm: (315 - 400) nm CH2: UV-B Peak 311 nm: (280 - 315) nm	Ch1: 7nA/(W/m²) Ch2: nA/(W/m²)	Diffuser / 8mmØ	UV Phototherapy, TL01 and TL12 lamps
XD-9506	CH1: Actinic UV-A (320 - 400) nm CH2: Actinic UV-BC (250 - 320) nm	Ch1: 4µA/(W/m²) Ch2: 1.5nA/(W/m²)	Diffuser / 8mmØ	ICNIRP/ACGIH Actinic UV / IEC EN 62471
XD-9509	CH1: Erythema UV-A_eff (320 - 400) nm CH2: Erythema UV-BC_eff (250 - 320) nm	Ch1: 1µA/(W/m²) Ch2: 3.8nA/(W/m²)	Diffuser / 8mmØ	CIE Erythemal spectral function
XD-9510	Ch 1: S_uv(λ) UV-A (320 - 400) nm Ch 2: S_uv(λ) UV-BC (250 - 320) nm	Ch1: 4µA/(W/m²) Ch2: 1.5nA/(W/m²)	Diffuser / 8mmØ	Actinic UV DIN EN 12198

See also: Light hazard meters See also: Photomedicine light meters

Laser power detector heads for the measurment of radiant flux (W)

Model	Wavelength range / nm	Typical responsivity	Max. signal current	Input Optic / Size (mm)	Aperture	Remarks
LP-9901		Si 400 - 1100 nm	1 mA	Flat surface	7 mm Ø	Laser power and laser scattered radiation. 7mm diameter measurement spot for laser safety measurements.
PD-45 Series		Si 350 - 1100 nm Ge 800 - 1800 nm TP 300 - 10000 nm		Flat surface	10 mm Ø	Si, Ge and Thermopile version available for UV/VIS/NIR/IR spectral range
PD-MSD Series		PD-MSD-Si (200 nm to 1100 nm): 30 nW to 30 mW (typ) PD-MSD-TP (300 nm to 10000 nm): 100 µW to 2 W (typ)		76 mm x 25,2 mm x 5 mm	Fits directly into the focal plane of a microscope	Laser power head for microscope measurements available in two versions (Si and Thermopile) for precise laser power measurement
ISD-0.8-SiLP		33 mA/W @ 633 nm 46 mA/W @ 900 nm	1 mA	Sphere / 8 mmØ	2 mm	Short rise time for Laser power in W. 400 nm - 1100 nm responsivity, optional SMA Adapter, for use with fast optometers and signal amplifiers
ISD-1.6-SP-Vxx	(400 - 1100) nm	V0x: 8.4 µW/A @900nm V01: 6.0 µW/A @900nm	1 mA (fotodiodo utilizado para la medición absoluta)	Sphere / 16 mmØ	V0x: 5 mm V01: 7 mm	Time resolved pulse shape and absolute pulse energy.
ISD-1.6-Si	(400 - 1100) nm	V0x: 8.4 µW/A @900 nm V01: 6.0 µW/A @900 nm	1 mA	Sphere / 16 mmØ	V0x: 5 mmØ V01: 7 mmØ	Pulse energy and pulse shape of ns pulses
ISD-5-Si	(400 - 1100) nm	2.9E-3 A/W @ 630 nm	1 mA	Sphere / 50 mmØ	12.7 mm Ø
ISD-3P-Si	400 nm - 1100 nm radiometric	8.87E-04 A/W @ 900 nm	1 mA	Sphere / 30 mmØ	5 mm Ø
ISD-3P-IGA	800 nm - 1800 nm radiometric	0.17E-04 A/W @ 1300 nm	1 mA	Sphere / 30 mmØ	5 mm Ø
ISD-5P-Si	400 nm - 1100 nm radiometric	2.5E-03 A/W @ 630 nm	1 mA	Sphere / 50 mmØ	12.7 mm Ø
ISD-5P-IGA	(800 - 1800) nm	0.2 mA/W @ 1400 nm	1 mA	Sphere / 50 mmØ	12.7 mm Ø
ISD-10-Si	400 nm - 1100 nm Si Photodiode	1.6 mA/W @ 633 nm	1 mA	Sphere / 100 mmØ	15 mm Ø
ISD-15-Si	400 nm - 1100 nm Si Photodiode	60 µA/W @ 633 nm	1 mA	Sphere / 150 mmØ	38.1 mm Ø
ISD-30	(400 - 1100) nm or (800 - 1800) nm	0.2 mA/W @ 633 nm 0.25 mA/W @ 900 nm 25 µA/W @ 1300 nm 18 µA/W @ 1550 nm	1 mA	Sphere / 300 mmØ	100 mm Ø	Two detectors Si and IGA
LP-9901		Si 400 - 1100 nm		Bare photodiode	7 mm Ø	Low profile detector head with 7mm diameter active area to measure laser radiant power in W and irradiance in W/m².

Compact Modular Detectors

Model	Spectral function	Wavelength range / nm	Typical responsivity	Max. signal current	Aperture	Remarks
PD-1101	UV Si photodiode	(250 -1100) nm	0.15 A/W @ 350 nm 0.5 A/W @ 900 nm	1 mA	3.6 mm x 3.6 mm	For combining with integrating spheres, optics, filters and mechanical components
PD-1102	InGaAs photodiode	(800 -1800) nm	0.85 A/W @ 1350 nm 0.95 A/W @ 1500 nm	1 mA	0.3 mm Ø	For combining with integrating spheres, optics, filters and mechanical components
PD-1103	InGaAs photodiode	(800 -1800) nm	0.85 A/W @ 1350 nm 0.95 A/W @ 1500 nm	1 mA	1 mm Ø
PD-1104	InGaAs photodiode	(800 - 1800) nm	0.85 A/W @ 1350 nm 0.95 A/W @ 1500 nm	1 mA	3 mm Ø	For combining with integrating spheres, optics, filters and mechanical components
PD-1105	SiC photodiode	(215 - 360) nm	0.16 A/W @ 270 nm	50 µA	1.25 mm x 1.25 mm
PD-1109	GaP photodiode	(250 - 550) nm	0.07 A/W @ 350 nm	100 µA	2.2 mm x 2.2 mm	For combining with integrating spheres, optics, filters and mechanical components
PD-1112	GaAsP (UV) photodiode	(200 - 680) nm	0.035 A/W @ 254 nm 0.17 A/W @ 633 nm	1 mA	2.3 mm x 2.3 mm	For combining with integrating spheres, optics, filters and mechanical components
PD-1113	GaAsP (Vis) photodiode	(400 - 760) nm	0.22 A/W @ 560 nm 0.29 A/W @ 633 nm	1 mA	2.3 mm x 2.3 mm	For combining with integrating spheres, optics, filters and mechanical components
PD-1115	Si PIN photodiode	(400 - 1050) nm	0.5 A/W @ 900 nm	1 mA	0.8 mm Ø	For combining with integrating spheres, optics, filters and mechanical components
VL-1101	Photopic; f1 ≤ 5%	(380 - 780) nm	0.3 nA/lx	1 mA	1.1 mm Ø	Modular photometric detector
TD-11VL01	Photopic; f1 ≤ 5%	(380 - 780) nm		1 mA	2,7 x 2,7 mm behind filter	Temperature stabilised. Typically used as monitor detector on integrating spheres.

Modular Detectors

Model	Spectral function	Wavelength range / nm	Typical responsivity	Max. signal current	Aperture
MD-37-GP6	GaP photodiode	(250 - 550) nm	0.07 A/W @ 350 nm	100 µA	2.5 mm x 2.5 mm
MD-37-GAP-UV	GaAsP (UV) photodiode	(200 - 680) nm	0.035 A/W @ 254 nm 0.17 A/W @ 633 nm	100 µA	2.3 mm x2.3 mm
MD-37-GAP-VIS	GaAsP (Vis) photodiode	(400 - 760) nm	0.22 A/W @ 560 nm 0.29 A/W @ 633 nm	1 mA	2.3 mm x2.3 mm
MD-37-IGA1	InGaAs photodiode	(800 - 1800) nm	0.85 A/W @ 1350 nm 0.95 A/W @ 1500 nm	1 mA	1 mm Ø
MD-37-IGA3	InGaAs photodiode	(800 - 1800) nm	0.85 A/W @ 1350 nm 0.95 A/W @ 1500 nm	1 mA	3 mm Ø
MD-37-SC1	SiC photodiode	(215 - 360) nm	0.16 A/W @ 270 nm	50 µA	1.25 mm x 1.25 mm
MD-37-SU13	UV Si photodiode	(250 - 1100) nm	0.15 A/W @ 350 nm 0.5 A/W @ 900 nm	1 mA	3.6 mm x 3.6 mm
MD-37-SU33	UV Si photodiode	(250 - 1100) nm	0.15 A/W @ 350 nm 0.5 A/W @ 900 nm	1 mA	5.8 mm x 5.8 mm
MD-37-SU33-VL	Photopic; f1 ≤ 6%	(380 - 780) nm		1 mA
MD-37-SU100	UV Si photodiode	(250 - 1100) nm	0.15 A/W @ 350 nm 0.5 A/W @ 900 nm	1 mA	10 mm x 10 mm
MD-37-SU100-VL	Photopic; f1 ≤ 6%	(380 - 780) nm	22 nA/lx	1 mA	9 mm x 9 mm
MD-37-SU100-VLS	Scotopic; f1 ≤ 6%	(380 - 780) nm	22 nA/lx	1 mA	9 mm x 9 mm

Photosynthetic Active Radiation (PAR) detectors

Model	Measured quantity	Spectral function	Wavelength range / nm	Typical responsivity	Input Optic / Size (mm)	Remarks
PS-3701	PAR µMol·m²·s	PPFD	400 - 700	100 nA/(µMol·m²·s)	15 mm Ø
PS-3702	PAR µMol·m²·s	Phototropism (UV-A / Green)	320 - 500	2 nA/(µMol·m²·s)	2 nA/(µMol·m²·s)
PS-3703	PAR µMol·m²·s	Photomorphogenesis (Red / NIR)	590 -900	100 nA/(µMol·m²·s)	15 mm Ø
CSS-45 with CSS-D	many derived out of spectra	flexible	360 - 830		10 mm	spectral sensor

A modular range of add-on assemblies including lenses, diffusers, light shields, etc is available for the Gigahertz-Optik optical detector heads.

Model	Description
SRT-M45/37B	Front adapter for detector heads with 37mm and 45mm diameter for attaching accessories with M30x1 thread.
SRT-M37L-1	Front optics with 1 ° FOV for use with front adapters SRT-M45 / 37B or MD-37 series devices.
SRT-M37L-2	Front optics with 2 ° FOV for use with front adapters SRT-M45 / 37B or MD-37 series devices.
SRT-M37L-5	Front optics with 5 ° FOV for use with front adapters SRT-M45 / 37B or MD-37 series devices.
SRT-M37L-10	Front optics with 10 ° FOV for use with front adapters SRT-M45 / 37B or MD-37 series devices.
SRT-M37L-1-UV	UV optic with 1 ° FOV for use with SRT-M45 / 37B front adapters or MD-37 series devices.
SRT-M37L-2-UV	UV optic with 2 ° FOV for use with SRT-M45 / 37B front adapters or MD-37 series devices.
SRT-M37L-5-UV	UV optic with 5 ° FOV for use with SRT-M45 / 37B front adapters or MD-37 series devices.
SRT-M37L-10-UV	UV optic with 10 ° FOV for use with SRT-M45 / 37B front adapters or MD-37 series devices.
MD-37-CUS	MD-37 measuring head for individual assembly with photodiodes (not included). Includes housing, circuit board, connection cable, -1, -2 or -4 plug.
MD-37Z-H7	Front adapter for filters, diffusers, etc. Length 7 mm. M30x1 thread on both sides.
MD-37Z-C8	Front adapter with 8 mm aperture. M30x1 threaded.
MD-37Z-C11	Front adapter with 12mm aperture. M30x1 threaded.
MD-37Z-DR11	Front adapter with 11 mm diffuser. M30x1 threaded.
MD-37Z-FCF	Front adapter with FC connector. M30x1 threaded.
SRT-M37-50	Front adapter 50mm long, M30x1 threaded on both ends
SRT-M37-60-L	Attachment optics with 50 mm diameter. FOV according to specification. For use with SRT-M45 / 37B front adapters or MD-37 series probes.
SRT-M37Z01	Front adapter with stray light shield. M30x1 threaded.

Detector Plugs

Note: -5 connectors (ITT MSDM9, as per -4 type) incorporate Eeprom for storage of calibration data.

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