German VSE Weishi flowmeter VSI 2/1 EPO 12V 42R11

German VSE Weishi flowmeter VSI 2/1 EPO 12V 42R11The German VSE flowmeter VSI preamplifier refers to a circuit or electronic device placed between the source and amplifier stage, designed specifically to receive weak voltage signals from the source. A preamplifier amplifies useful signals while also amplifying noise. A low-noise preamplifier is a preamplifier that minimizes the noise figure of a circuit.

For weak signal detection instruments or equipment, preamplifiers are one of the main components that introduce noise.

The noise figure of the entire detection system mainly depends on the noise figure of the preamplifier. The minimum signal detectable by the instrument mainly depends on the noise of the preamplifier.

Pre amplifiers are usually directly connected to the sensor that detects the signal. Only when the impedance of the amplifier is equal to the output impedance of the signal source, can the noise figure of the circuit be minimized.

The function of preamplifier

1. Improve the signal-to-noise ratio of the system (the preamplifier is close to the detector, the transmission line is short, and the distributed capacitance Cs is reduced, which improves the signal-to-noise ratio) 2. Reduce the relative influence of external interference (the signal is initially amplified by the preamplifier) 3. Reasonable layout for easy adjustment and use (the preamplifier is non adjustable, the main amplifier has a large adjustment factor and forming constant) 4. Achieve impedance conversion and matching (the preamplifier is designed with high input impedance and low output impedance)

classification

Voltage sensitive preamplifier (voltage amplifier)

Charge sensitive preamplifier (current integrator with capacitor negative feedback) with stable output gain, low noise, and good performance

Current sensitive preamplifier (current preamplifier, parallel feedback current amplifier)

Quick response, can obtain time information. Can be transmitted over long distances. The output pulse has a narrow rise time and width, making it suitable for high count rate measurements.

Advantages of VSE Weishi flowmeter VSI preamplifier

The quality of the output signal has been greatly improved by adjusting the harmonic pulse width

The testing process is more stable and will not be affected by vibration interference

Increase interpolation coefficients through IPF coefficients (24 and 32)

Integrated embedded system

Advantages of the German VSE VS series gear flowmeter in stock:

High testing accuracy and linearity in the industry

Extremely short dynamic response time

Extremely rich product catalog (different types of bearings, materials, special explosion-proof versions, etc.)

Suitable for strict technical requirements in the industry

Volumetric flow meters, differential pressure flow meters, and float flow meters are classified as three types of flow meters with high usage, commonly used for measuring the total amount of expensive media such as oil and natural gas.

It can be considered from five aspects, including the performance of flow meters, fluid characteristics, installation conditions, environmental conditions, and economic factors. The detailed factors of the five aspects are as follows:

In terms of instrument performance: accuracy, repeatability, linearity, range, flow range, signal output characteristics, response time, pressure loss, etc;

In terms of fluid characteristics: temperature, pressure, density, viscosity, chemical corrosion, abrasiveness, scaling, phase mixing, phase change, conductivity, sound velocity, thermal conductivity, specific heat capacity, isentropic index;

In terms of installation conditions: pipeline layout direction, flow direction, length of straight pipe sections on the upstream and downstream sides of the detection component, pipeline diameter, maintenance space, power supply, grounding, auxiliary equipment (filters, dampers), installation, etc;

In terms of environmental conditions: temperature, humidity, electromagnetic interference, safety, explosion prevention, pipeline vibration, etc;

In terms of economic factors: instrument purchase cost, installation cost, operation cost, calibration cost, maintenance cost, instrument service life, spare parts, etc.

German VSE Weishi flowmeter VSI 2/1 EPO 12V 42R11，The signal sensor of the German VSE Weishi VS (I) gear flowmeter has been innovatively improved, which compiles and outputs signals by scanning the rotational motion of the paired gears inside the flowmeter chamber. The core components of the sensor system are two magneto resistive sensors, each embedded in a sturdy, compact plastic injection molded part. Compared with existing sensor systems, these magneto resistive sensors are installed outside the measurement chamber through which the fluid flows, so there is no direct contact with the fluid. In addition, the quality of the signal has also been improved. When used in conjunction with high-performance preamplifiers, it can achieve higher resolution (IPF coefficient) and eliminate frequency interference unrelated to flow. Even under harsh working conditions such as high temperature or frequent load changes, a stable signal processing system can ensure the quality of the output pulse signal.

In addition, a controllable pulse filter is integrated to suppress pulsating interference that exists in the fluid or occurs when the fluid flow direction changes.

Junling Industrial Equipment (Shanghai) Co., Ltd

Technical support brands: KRACHT (flow meter, indicator, gear pump) from Germany, VSE (flow meter, display) from Germany, TEMPOSONICS sensors from the United States, WOERNER (distributor, lubrication pump, level switch) from Germany

German advantage brands: MEISTER (flow meters, sensors), KOBOLD (sensors, level gauges, flow meters), FEIN's electric tools, BURKERT (flow meters, solenoid valves)

Domestic spot brands: ATOS (proportional valve, solenoid valve, amplifier, cylinder), REXROTH (hydraulic valve, pump, sensor), PARKER (proportional valve, sensor, hydraulic motor), HYDAC (sensor, filter, filter element, valve), SUN (plug-in valve, flow valve, valve block)

I have 10 years of experience in procurement channels and can consult and compare unfamiliar European brands.