Standard Mini-Chrom

The Standard Mini-Chrom(MC) is a low cost, in-line, Fastie-Ebert monochromator available in six wavelength ranges covering the ultraviolet, visible and near infrared. The Standard Mini-Chrom is a manual unit which utilizes a micrometer for wavelength selection and readout. Turning the micrometer head causes, via a precision sine bar drive, rotation of the diffraction grating which positions the desired wavelength at the exit slit.

Wavelength in nanometers(nm) is read directly from the micrometer head in models 01, 02, 03, and 04. Near infra-red models (05 and 06) require the micrometer reading to be doubled, to 2nm per division, for wavelength selection and readout.

Standard Mini-Chroms are used in variety of applications that require an inexpensive, small yet high performance monochromator. They are used in physics, chemistry, engineering and the life sciences for research, development and teaching.

STANDARD MINI-CHROM

Standard mini-chrom monochromator

A compact, in-line, f/3.9 Fastie-Ebert monochromator with a 74mm focal length. Includes a replicated ruled or holographic grating, a set of 300レ slits and an instruction manual. Wavelength selection is read directly from the micrometer in models 01, 02, 03 and 04. For models 05 and 06, the micrometer reading must be doubled.

Dimensions : 150 x 59 x 49mm
Weight : 0.5kg (1.1lbs)

The Digital Mini-Chrom (DMC) is a manually operated monochromator that utilizes a dial for wavelength selection. Rotation of the dial causes, via a precision lead screw/sine bar mechanism, rotation of the diffraction grating which positions the selected wavelength at the exit slit.

Wavelength is read directly in nanometers(nm) from a counter on models 01, 02, 03 and 04. Near infra-red models (05 and 06) require the micrometer reading to be doubled, to 2nm per division, for wavelength selection and readout.

Digital Mini-Chroms are used in a variety of applications that require a small, high performance monochromator coupled with the ease of operation and convenience of an integral wavelength readout.

As with the Standard Mini-Chrom, the Digital model 03 is available with a comparator and a reticle for use a hand held spectrograph.

Wavelength readability
The wavelength on all Digital Mini-Chroms can be selected and read to 0.2nm.

DIGITAL MINI-CHROM

The Scanning Mini-Chrom monochromator(SMC) is designed to be driven stepping or servo-controlled motors. No wavelength readout is provided. All models utilize a precision lead screw/sine bar mechanism to rotate the diffraction grating and sequentially position the selected wavelengths(s) at the exit slit. Rotation of the drive shaft in a clockwise direction proportionately increases the wavelength of radiation at the exit slit.

Scanning Mini-Chroms are used in applications requiring either single or repetitive scans of wavelength intervals or the sequential selection of discrete wavelengths. Scanning Mini-Chroms are calibrated in nanometers (nm) per drive shaft revolution.

Wavelength calibration
Wavelength calibration of the Scanning Mini-Chrom can be accomplished by using either the trip point of the low limit sensor or zero order light as reference points. The position of the low limit sensor, in nanometers, is provided with each instrument. This value can be added to the computer command when a scan is initiated.

SCANNING MINI-CHROM

The Scanning Digital Mini-Chrom(SDMC) incorporates the capabilities of the Scanning and Digital Mini-Chroms in a single housing. In addition, the SDMC includes and intergral stepping motor, allowing it to be controlled by a calibrated driver such as the CB-3. The SDMC is similar to the Digital Mini-Chrom in that it includes a four digit counter for wavelength readout and a dial for manual wavelength selection. Like other Mini-Chorms, the SDMC utilizes a lead screw/sine bar mechanism to rotate the grating.

Dual photosensors that function as high and low limit switches are included for use in the scanning mode.

The Scanning Digital Mini-Chrom can be used for all applications that require the convenience of a built-in wavelength readout as well as applications that require scanning to a selected wavelength or over a wavelength interval. A 15 pin connector that can be connected directly to the CB-3 controller allows access to the integral stepping motor and limit switches.

SCANNING DIGITAL MINI-CHROM

* 5-10レslits at 3131 （ (subject to diffraction limits)

5-10レslits at 313（(subject to diffraction limits)

** May require microchannel plate intenstifer, * 5-10レ slits at 3131（(subject to diffraction limits)

** May require microchannel plate intensifier, * 5-10レ slits at 3131（(subject to diffraction limits)