MNIPI

System meter of small currents. The device allows to make measurements in almost the entire range of currents. The picoammeter is characterized by high performance, which is important for its use as part of automated measuring systems. Technical specifications: Current measuring range 1x10-14 - 1x10-2 A Error for the range 10-11, 10-10 ±[0.5+0.025(lk/lx-1)]% for the range 10-9, 10-8 ±[0.25+0.01(lk/lx-1)]% for the range 10-7, 10-6,10-5, 10-4,10-3, 10-2 ±[0,1+0,01( lk/lx-1)]% The time of setting the readings is 2x10-2 - 2x10-5 s Supply voltage 230 (±20) V, frequency 50 (± 0.5) Hz Power consumption 10 VA Overall dimensions (HxWxD) 105x284x366 mm Weight 3.5 kg Operating temperature 5 - 40 °C Humidity 80% at 25 °C

Technical specifications: The waveform is sinusoidal, meander, triangular, sawtooth, (straight, reverse), offset, rectangular (TTL) Frequency range from 0.1 Hz to 2 MHz Frequency setting error ±0.05% Frequency instability ±0.02% in 15 min The amplitude of the signal is sinusoidal ± 5 V at a load of 600 ohms of the form ± 10 V without load Signal span: meander, triangular, ± 10 V at 600 ohm load sawtooth (forward, reverse) ±20 V without load Limits of output signal level adjustment: -sinusoidal shape from 4 mV to 3.7 V (skz) at a load of 600 ohms from 8 mV to 7.4 V (scz) without load -meander, triangular, sawtooth from 10 mV to 10.465 V (span) at a load of 600 ohms shape: from 20 mV to 20.93 V (span) without load Signal level unevenness ± 5% at frequencies from 0.1 to 10 Hz sinusoidal shape relative to ± 2% at frequencies from 10 Hz to 200 kHz 1 kHz ±5% at frequencies from 200 kHz to 2 MHz The harmonic coefficient of the sinusoidal ± 0.2% at frequencies from 10 to 100 Hz forms ± 0.07% at frequencies from 100 Hz to 10 kHz ±2% at frequencies from 10 to 120 kHz ±1% at frequencies from 120 kHz to 1 MHz ±4% at frequencies from 1 to 2 MHz Parameters of the rectangular (TTL) signal form log. "1" 3 2.4 V; log. "0" ≤ 0.4 V the duration of the front, the cutoff is not more than 100 ns in the frequency range from 0.1 Hz to 2 MHz Operating temperature range from minus 10 °C to + 40 °C Power supply ~230 V, 50 Hz; 10 V×A Dimensions; weight 210×71×255 mm; 2 kg

The set of devices includes a microwave transmitter module, a microwave receiver module, a set of devices (metal reflecting screens, a refractive prism, an absorbing screen, etc.) to demonstrate the properties of electromagnetic waves (radiation, absorption, reflection, refraction, interference, diffraction). Technical specifications: The wavelength of the microwave transmitter is 3 – 4 cm; The average value of the energy flux density emitted by the microwave transmitter meets the requirements of the SanPiN 2.4/2.1.8.9-36-2002 (no more than 10 MW/ sq. m.). Receiver (transmitter) weight, not more than 0.3 kg Overall dimensions of the receiver (transmitter) 172x25x77 mm The microwave receiver module has a built-in interface for connecting to a personal computer and provides the ability to display the measured information on the PC screen. The kit includes an electronic media with software (CD-ROM) to demonstrate the operation of the equipment on the monitor screen of a personal computer.

Designed to measure electrical quantities (DC voltage and strength, AC voltage and strength, DC electrical resistance) during demonstration work in physics. The device performs the function of a demonstration multimeter. Technical specifications: Measurement of DC voltage from 0 to 100 V measurement error, not more than 1.0 % Measurement of AC voltage from 0 to 60 V measurement error, not more than 1.0% measurement of DC power from 0.01 to 200 measurement error, not more than 1.0 % Measurement of AC power from 0.01 to 200 mA measurement error, not more than 1.0 % Measurement of DC resistance from 1 ohm to 2 mOhm measurement error, no more than 1.0% power supply from the USB port of the computer power consumption, no more than 0.6 V × A weight, no more than 0.3 kg overall dimensions 172x25x77 mm

A high-speed signal limiter amplifier. Designed for use in electronic counting frequency meters. Description: The magnitude of the input signals for selecting the switch input and inverting the signal of the limiter amplifier at a supply voltage of ± 5 V: - logical "0" not more than 0.2 V; - logical "1" at least 4.8 V. The value of the input signals of switching on / off the switch at a supply voltage of ± 5 V: - logical "0" no more than 3.3 V; - logical "1" at least 4.1 V. The magnitude of the output signals of the switch at a supply voltage of ± 5 V and a load of 300 ohms connected to zero potential: - logical "0" from 3.1 V to 3.4 V; - logical "1" from 4.0 V to 4.3 V. The minimum input voltage of the sinusoidal shape in the frequency range from 10 Hz to 200 MHz should be no more than 30 mV. The maximum input voltage of the sinusoidal shape in the frequency range from 10 Hz to 200 MHz must be at least 1 V. The value of the supply voltage: - positive 5±0.2 V; - negative -5±0.2 V. The current consumption should be no more than: - from a positive power source 110 mA; - from a negative power supply 35 mA.

Designed to study and measure the parameters of electrical signals in the frequency band from 0 to 200 MHz. Description: 200 MHz bandwidth 2 channels, external synchronization input Vertical sensitivity 2 mV/div Sampling rate up to 400 Mbps, in real time Color LCD screen with LED backlight Saving signals on external media in graphic and text form Cursor measurements and 22 types of digital measurements USB and Ethernet interface Frequency meter function Logger function.

General characteristics: LCD screen 12.1" with a resolution of 1024 x 768, keyboard, mouse. USB, Ethernet. Supply voltage: 230 V / 50 Hz, power: 450 V·A. Operating temperature range: from +5° to +40°C. Dimensions (W x H x D): 470 x 330 x 570 mm, weight: 37 kg

Technical specifications: Frequency range, from 2 Hz to 2 MHz Frequency setting error, ± 1 % Signal amplitude: - at a load of 600 ohms , at least 5 V at least 10 V Smooth signal attenuation, at least 20 dB Frequency instability: - in 15 minutes - for 180 minutes, no more than 0.1% no more than 0.5 % Harmonic coefficient: - in the frequency range from 10 Hz to 20 Hz - in the frequency range sv. 20 Hz to 200 kHz - in the frequency range of 200 kHz to 2 MHz, not more than 0.5% not more than 0.2% not more than 1 %

Technical specifications: B5-78 (15 V, 3 A); B5-78/1 (30 V, 2 A); B5-78/2 (50 V, 1 A); B5-78/4 (20 V, 1.5 A); B5-78/6 (30 V, 4 A); B5-78/7 (50 B, 2.5 A) Voltage measurement error: ±0.3 V Current measurement error: ±(0.04–0.06) A Voltage instability when the load current changes 0.03% Instability of the current when the voltage changes at a load of 0.2% Voltage ripple 0.5–1 mV Current ripple 0.1% Power consumption 90 - 320 VA Two 3-digit indicators (voltage, current) Adjustments are rough, smooth Dimensions 115x185x360 mm Weight: 3.7 kg (B5-78, B5-78/1, B5-78/2) 3 kg (B5-78/4) 5.5 kg (B5-78/6, B5-78/7) Power supply ~220 V A

Technical specifications: The waveform is sinusoidal, rectangular (TTL) Frequency range from 2 Hz to 2 MHz Frequency setting error ±0.05% Frequency instability ±0.02% in 15 min Signal amplitude ±5 V at 600 ohm load ±10 V without load Limits for adjusting the output signal level from 1 mV to 3.75 V (scr) at a load of 600 ohms from 2 mV to 7.5 V (scz) without load Signal level unevenness ± 2% at frequencies from 20 Hz to 200 kHz relative to 1 kHz ± 5% at frequencies from 200 kHz to 2 MHz Harmonic coefficient ± 0.3% at frequencies from 2 to 20 Hz ± 0.2% at frequencies from 20 Hz to 100 kHz ±1% at frequencies from 100 kHz to 2 MHz Parameters of the rectangular (TTL) signal form log. "1" 3 2.4 V; log. "0" ≤ 0.4 V the duration of the front, the cutoff is not more than 100 ns Operating temperature range from minus 10 °C to + 40 °C Power supply ~230 V, 50 Hz; 10 V×A Dimensions; weight 210×71×255 mm; 2

Designed for measuring the frequency and period of sinusoidal and pulse signals, measuring pulse duration, time intervals, pulse duty cycle, frequency ratio of electrical signals, counting the number of pulses, output of reference frequency signals. Technical specifications: Input to (sinusoidal signal) - range 100 - 2500 MHz Input A, C (sine, pulse) - range 0.01 - 200 MHz Counting time: input A, C – 1, 10, 102, 103, 104 ms; login to – (16•1), (16•10), (16•102), (16•103), (16•104) ms The number of averages. the period of the. vx. signal - 1, 10, 102, 103, 104 Timestamp period – 10-7, 10-6, 10-5, 10-4, 10-3 Borehole measurement at inputs A, C – 1.000001- 999999999 Frequency ratio in channels: A/S and C/A - 0.0001- 999999999; B/S - 0.5 – 999999999 Quartz thermostatic generator The nominal frequency value is 5 MHz Error: ± 5•10-8 - for 30 days, ± 10-7 - for 12 months 9 decimal places Overall dimensions (HXHL) - 285x106x345 mm Weight: 4 kg Reference generator: 1x10-7 for 12 months. Operating conditions: - 10° C ... +50° C

Technical specifications: Azimuth rotation angle from 0° to 360° with a reading of 0.1° The angle of rotation according to the angle of the place from minus 30° to plus 90° with a count of 0.1° The angle of rotation of the polarization plane from minus 95° to plus 95° with a count of 1° The installation height of the axis of the orientation mechanism is from 1.35 to 2.5 m. Note – The maximum height is determined when the rack is installed, the smooth lifting mechanism is fully extended and the legs are fully extended to the stop, extended at an angle of 30° to the axis of the azimuth mechanism. Smooth height adjustment of the axis of the orientation mechanism 0.25 m In terms of strength under climatic and mechanical influences, the rotary support device (OPU) complies with the norms of group 6 GOST 22261-94 Overall dimensions of the OPU - 1687x2500 (shown in the unfolded state at maximum height. The size Ø1687 is the diameter of the circumscribed circle along the vertices of the triangle occupied by the OPU on a horizontal platform) Operating conditions of the OPU: ambient temperature from minus 50 to plus 60 ° C The mass of the OPU is 19.5 kg