Multi-functional light meters for high-quality photometric measurements
Optometers are multi-functional light meters. The detector head on the device determine the photometric or radiometric measurands as well as the spectral range of the measurement. ..
- P-9710-1, multi-functional light meter for high-quality photometric measurements
- P-9710-2, multi-functional light meter for measurement of short light pulses
- P-9710-4, multi-functional light meter for synchronized measurement of short light pulses
Gigahertz-Optik offers a wide range of detector heads for various measurement applications. The optometer’s signal input amplifier provides a wide dynamic range enabling adaptation of the device to detectors with various responsivity levels and optical radiations with different intensity levels. The calibration data of the detector head used with the device is saved in the optometer.
multi-functional light meters
The P-9710-1 optometer is a high-quality device designed by Gigahertz-Optik for mobile use. Its signal amplifier provides a wide dynamic range for the detectors‘ signal currents ranging up to 2mA. The noise-equivalent current signal is as low as 0.1pA. The device has eight gain ranges that can be manually or automatically selected for adjustment to match the signal levels.
P-9710-2 optometer for CW and light pulses
The P-9710-2 optometer is largely identical to the P-9710-1 and therefore offers similar characteristic features. The signal amplifier provides a wide dynamic range for the detector‘s signal currents ranging up to 2mA in both CW and pulse measurement modes. The noise equivalent current signal is as low as 0.1pA. The device has eight gain levels that can be manually or automatically selected for adjustment to match the signal levels.
Dose measurement of short pulses using the pulse stretching method
Different to the P-9710-1, the P-9710-2 optometer has a 20ms standard time constant in all eight gain ranges. Light pulses shorter than 1ns are hereby stretched to at least 20ms and the stretched pulse locus then measured with the 100µs sample rate of the optometer.
P-9710-4 optometer for CW and light pulses
The P-9710-4 optometer is largely identical to the P-9710-2 and therefore offers similar characteristic features. The signal amplifier provides a wide dynamic range for the detector‘s signal currents ranging up to 2mA in both CW and pulse measurement mode. The noise equivalent current signal is as low as 0.1pA. The device has eight gain ranges that can be manually or automatically selected for adjustment to match the signal levels.
Dose measurement of short pulses using pulse stretching
Similar to the P-9710-2, the P-9710-4 optometer also has a 20ms standard time constant in all eight gain levels. Light pulses shorter than 1ns are hereby stretched to at least 20ms and the stretched progression then measured with the 100µs measurement rate of the optometer. Beside the manual start of the measurement the P-9710-4 offers a trigger input.
100µs integration time and measurement time
One of the characteristic properties of the optometer is the 100µs short integration time and measurement rate which makes it possible to perform various measurement functions:
- Adjustable integration times in CW measurement mode
- CW measurement with noise proportion (Peak to Peak)
- Peak value measurement
- Pulse energy measurements of short light pulses
- Dose measurement
- Fast data logger for up to 12000 measurement values
Light detector heads with calibration data plug
Upon attachment of a detector head with a calibration data plug onto the P-9710-1 optometer, its calibration data as well as the device settings are automatically applied. This ensures that improper operation that might result from exchange of measurement heads is basically ruled out.
RS232 interface
The P-9710-1, -2 and 3 optometer can be connected to a PC via its RS232 interface.
Eighteen different measurement modes
The P-9710-1, -2 and 3 optometer has eighteen different measurement modes that can easily be selected using a user-friendly menu hence enabling its multifunctional application.