Product information：

HGID101 series photomultiplier tube detector features:

★ side window receiving, with electrical, magnetic and optical shielding;

★ standard BNC plug output signal, special high voltage resistant BNC plug input stable high voltage;

★ the effect is better when used with HGIP1250 high voltage regulated power supply produced by our company;

★ E678-11A special tube socket is built in the tube chamber and the partial voltage resistor is welded, which is suitable for placing R316-01 (original R212), R317 (original R212UH), R316-02 (original 1P28), CR131, R105, 1P21, R105UH, 931A, CR114, CR184, R1527, R1527P and other photomultiplier tubes (if the photomultiplier tube chamber is equipped with CR131 photomultiplier tube, the model is HGID101-CR131);

★ it can be used together with spectrometer series, sample room and filter wheel produced by our company.

Product information：

Product features:

☆ panel offline operation, plug-in and play, anytime and anywhere;

☆ special normally closed (or normally open) positive and negative limit, photoelectric isolation + 5 ~ 24V signal input port;

☆ standard button functions: forward rotation, reverse rotation and speed regulation;

☆ support stepping motors of model 86 and below;

☆ overall dimension: 160 * 80 * 220, small and convenient.

Product information：

Product introduction:

1. Zhonggongshike laser level sends a straight line from the object surface and can be at any angle. It is suitable for woodworking, stair starting board, shelf, forming, tile laying, curtain installation, wall hanging painting or any other work requiring accurate alignment.

2. The horizontal accuracy of laser beam is 0.25mm/m, the vertical accuracy is 0.5mm/m, the light wave is 650nm-680nm, the output power is 5MW, the illumination range is 20m, and the indoor illumination range is 6-8m during the day.

3. There are three beam route modes: cross, horizontal and vertical. Customers can adjust the laser head up and down according to their needs.

Product features:

1. Cross laser measures whether many objects are on the same line.

2. Three air bubble water leveler is used for accurate plane or vertical alignment.

3. The ruler function of the left and right sides of the level.

4. With 250mm circle ruler, it is more convenient to measure distance.

usage method:

1. Place or replace the battery: unscrew the bottom screw, open the battery cover, take out the battery, replace three AG13 batteries, and ensure that the positive and negative poles of the battery are placed correctly.

2. Turn on the red button laser switch, you can make lines horizontally or vertically, or arbitrarily. If necessary, you can put the level ruler on the tripod to achieve the purpose of convenient use and more accuracy.

3. On the horizontal plane, three horizontal beads on the laser level can be positioned horizontally.

4. Push the lock / unlock key at the tail to lock the pull-out length of the tape measure.

Four functions of zhonggongshike laser level gauge:

1. The laser level can measure whether the plane is uneven or hanging pictures, etc. lv03 laser level can make three kinds of lines: straight line, cross line and solid line (also known as corner line).

2. There are horizontal beads on the laser level gauge, which can measure whether the horizontal plane is horizontal. Lv03 laser level gauge also has a water bead measuring an angle of 45 degrees.

3. A circle ruler (2.5m circle ruler with inch scale) is attached to the laser level.

4. There is a scale (15cm, 6 inches) on the edge of lv03 laser level.

Product information：

Optical path structure of Raman probe:

★ the laser signal from the fiber laser changes into a parallel laser through the collimating lens;

★ the laser irradiates the dichroic chip, so that the incident laser is reflected to the collimator group at an angle of 45 degrees, and then focused on the measured target;

★ the Raman signal generated by the measured sample returns to the original optical path, changes into a collimated beam through the collimator group, and then passes through the dichroic chip. At this time, 95% of the elastic scattered light is filtered out;

★ the Raman light signal in the optical signal after passing through the dichroic plate passes through the filter group unimpeded (transmissible above 790nm), and the laser signal above 0d10 is filtered;

★ the Raman signal light is focused to the slit of the spectrometer through the focusing lens group for the next spectroscopic measurement.

Optical path structure of spectrometer:

★ the spectrometer is composed of slit, collimating mirror, grating, imaging mirror, cylindrical lens and detector;

★ the Raman probe focuses the signal light on the slit to realize spatial filtering;

★ the signal light passing through the slit is incident on the collimating mirror inside the spectrometer at a divergent angle;

★ the signal light collimated by the collimator is diffracted by the grating, and the light of different wavelengths has different diffraction angles;

★ diffracted light of all wavelengths is reflected and focused by the focusing mirror and reaches the detector surface to realize spectroscopic detection.

Principle of Raman technology:

Sir chandrasekhara venkata Raman won the 1930 Nobel Prize in physics for the discovery of Raman effect. When light passes through the medium, it can be observed that the frequency and phase of light change irregularly due to light scattering. This phenomenon is called Raman effect.

The scattering molecule was originally in the ground state. When foreign photons incident on the molecule, the molecule absorbs a photon, transitions to the virtual energy level, and immediately returns to the ground state to emit photons. This is Rayleigh scattering. If the molecule transitions to the virtual energy level and does not return to the original ground state, but falls to another higher energy level to emit photons, the emitted new photon energy HV 'is obviously less than the incident photon energy HV, which is the Stokes line Δ E=h(u0- Δ U) Conversely, anti Stokes lines are generated Δ E=h(U0- Δ U) , Stokes lines and anti Stokes lines are generally called Raman lines. Usually, most molecules are in the ground state of vibrational energy level, so the intensity of Stokes lines is much stronger than that of anti Stokes lines.

Δ U is the difference between the scattered light and the scattered light frequency due to the Raman shift Δ U only depends on the molecular structure and has nothing to do with U0, so Raman spectrum can be used as molecular fingerprint spectrum. The abscissa of Raman spectrum is generally Raman shift, expressed in wave number Δ U = us-u0, where US and U0 are Stokes displacement and excited light wave number respectively, and the ordinate is Raman intensity.

Product information：

Basic description:

HGIDA4 data collector, also known as: current voltage converter, current amplifier. It is used to measure weak current signal and can also be converted into voltage signal. It can be measured directly with multimeter, oscilloscope and other voltage acquisition equipment. It can also transmit digital signal through serial port and be identified and processed by computer. It is especially suitable for developing optoelectronic instruments and integrated optoelectronic instruments and equipment systems, saving time and labor cost for small and medium-sized enterprises and individual entrepreneurs, or as a common weak current signal measurement tool.

Application Description:

Type B USB bus port is a power supply digital signal output port. When it is used as digital signal output, USB to serial port drive is required. It shall be controlled according to the communication protocol provided later. The BNC port near the USB port is the voltage output end, the BNC port on the other side is the current input end, and the small hole on the top is used for gain adjustment. Multi turn adjustable resistance is used to adjust the amplification gain.

Note: the input impedance of the current input port is very small. Do not connect the voltage signal, otherwise the equipment will be damaged.

Product information：

Good spot quality;

High stability and high reliability;

Fully tested by different global environments, high stability;

Electrostatic, over-current and over-temperature protection to ensure the service life of the laser;

Service life 10000 hours.