T-Rad

P/N 201849

Digital (USB) power module, to interface THZ-B heads with a PC (software included).

제품군 주요 특징

PC interface for THZ-B series

Digital (USB) power module, to interface THZ-B heads with a PC (software included).

검출기 호환성

관련 상품

  • THZ5B-BL-DZ-D0 THZ5B-BL-DZ-D0

    최대 20 mW의 레이저 파워 계측용 테라헤르츠 검출기.

  • THZ9B-BL-DZ-D0 THZ9B-BL-DZ-D0

    최대 20 mW의 레이저 파워 계측용 테라헤르츠 검출기.

Included

  • MON-USB MON-USB

    USB cable for : P-LINK, S-LINK-2, M-LINK, Mach series, T-Rad and QUAD-4Track.

  • Calibration certificate

컨트롤러 및 GUI 사양

  • 디지털 디스플레이 사이즈

    컴퓨터 화면
  • 아날로그 출력

    0-3.6 볼트
  • 외부 트리거

    BNC 연결장치를 통한 TTL
  • 시리얼 커맨드

    USB
  • 외부 전원

    9-15 볼트, 1 A

파워 미터 사양

  • 파워 범위

    200 nW - 200 mW

에너지 미터 사양

물리적 특성

  • 치수

    147L x 106W x x34D mm
  • 중량

    0.424 kg

T-RAD

The T-RAD is a microprocessor-based digital radiometer that includes a 12-bit ADC and unique DSP lock-in software. It is powered by a USB connection, which also acts as a virtual COM port. When a THZ-B terahertz pyroelectric detector is plugged into the T-RAD module, the module reads the content of the head's EEPROM, which identifies the detector and provides calibration and wavelength correction data. The LabView software supplied with the device makes it very easy to set up the radiometer, measure a THz or broadband source and record data. The software is compatible with Windows 7,8 & 10.

INSTRUMENT CONTROL AND STRIP CHART

Instrument controls and the radiant power measurement are always visible, making it easy to change the radiometer settings, no matter which display tab is selected. Instrument controls include: range, filter tau, batch size, data collection mode, reset options, and a null button for background cancellation. In addition, there are more set up and operation status indicators including: detector Rv, wavelength, frequency (actual), locked and frequency in range lights. The strip chart displays the radiant power measurement in watts, either continuously or by the batch. Select full scale, auto scale or use our manual scaling option.

INSTRUMENT CONTROL AND TUNING NEEDLE

The "tune" tab selects the very useful "tuning needle" display. This is a simulated analog meter whose speed is determined by the "filter tau" setting. It is expected to be used during the set-up of a radiometer with a source. The "tau" value is usually set to a small value when aligning the probe to the source (i.e. when peaking the reading). There is a button control to select "full scale", "min-max" or "reset". In the "min-max" mode, the indicators are "blue" for the minimum power and "red" for the maximum power.

INSTRUMENT CONTROL AND STATISTICS

In the "Statistics" tab there are 4 large windows that contain the statistics for the selected batch, including: Minimum, Maximum, Standard Deviation and Mean, expressed in Engineering Notation. Standard Deviation can be displayed in Watts or as a % that is user-selectable. There is also a window that shows the bandwidth of the Digital Band Pass Filter based on the user selected "Filter Tau" (0.100 to 100 seconds). A lower time constant is helpful when setting up, and a longer one when making measurements, especially on the lower ranges of the instrument.

THZ-B-DA DETECTOR AND OSCILLOSCOPE

Here is a basic analog set up that would be useful if the optical power of the source was about 5 µW or greater. The output of the THZ5B-BL-DA detector would be approximately 600 mV @ 5 Hz chopping frequency, giving plenty of signal for an oscilloscope. Simply read the voltage output and divide by the Rv factor (V/W) of the detector to measure the intensity of the source in Watts. Also consider applying a wavelength correction factor under certain circumstances.

THZ-B-DA DETECTOR AND LOCK-IN AMPLIFIER

This is another analog set-up option that we recommend if you have to measure very low power levels (i.e. less than 5 µW) where the signal may be buried in the broadband noise. The voltage output of the analog THZ-B-DA detector, powered by our T-RAD-ANALOG, is routed to the Lock-In Amplifier input, and the Sync Output of our SDC-500 Chopper is connected to the reference input. The Lock-In Amplifier will lock on the chopping frequency and you can dial in a long integrating time and measure a very low RMS voltage. The voltage divided by our Voltage Responsivity (V/W) equals the power of the source.

THZ-B-DZ DETECTOR AND T-Rad MODULE

Although analog solutions are available, for simplicity, convenience and sensitivity, we recommend you choose our THZ-B-DZ detectors and the T-RAD digital radiometer. Our unique DSP Lock-In Amplifier software provides a function much like the Analog Lock-In, but is so much easier to use. It also addresses thermal drift of the sensor and allows you to display the power measurement and complete statistics directly in digital and graphic formats. Set the range, null the background, set the filter tau (bandwidth) and make the measurement. It's that easy!

관련 영상

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