How does a Wobbulator work?
A wobbulator was used in some old microwave signal generators to create what amounted to frequency modulation. It physically altered the size of the klystron cavity, therefore changing the frequency. When capitalized, “Wobbulator” refers to the trade name of a specific brand of RF/IF alignment generator.
What is Wobbuloscope?
(Sweep + Marker + XY Scope) Features. Specifications. RF Sweep : Upto 300MHz with digital selection of all bands and channels to test (SIF, CHROMA, VIF, VHL, MID, VHH, Super Band)
How do you calibrate a vibration sensor?
How to do calibration checks of vibration Probe, extension cable and vibration monitor
- Physical check of vibration probe and extension cable for any damages, if it is please replaced with same one.
- Check resistance of vibration probe and continuity of extension cable it should be 5 to 9Ω and 5 to 20 Ω
How does digital pattern generator work?
PC-based digital pattern generators are connected to a PC through peripheral ports such as PCI, USB and/or Ethernet (see for example the “Wave Generator Xpress” from Byte Paradigm, connected through USB). They use the PC as user interface for defining and storing the digital patterns to be sent.
What is TV pattern generator?
A pattern generator produces audio / video signals, direct and with the RF modulation, on the allocated T.V. Channel frequencies for alignment, testing and servicing of T.V. receivers. The output signals is designed to simple patterns.
How do I know if my vibration sensor is working?
The output of the sensor is read using a multimeter. First, readings should be taken with no vibration. The vibration level should then be increased at a given frequency until vibration levels reach the top of the measurement range for the sensor under test.
What does g mean in vibration?
gravitational constant
Vibration can be expressed in metric units (m/s2) or units of gravitational constant “g,” where 1 g = 9.81 m/s2. An object can vibrate in two ways: free vibration and forced vibration. Free vibration occurs when an object or structure is displaced or impacted and then allowed to oscillate naturally.
How much do vibration sensors cost?
On the downside, they are expensive. The sensor engine alone costs between $300 and $500 for a single axis. In the case of a tri-axial vibration monitoring application, the sensors alone could cost more than $1500.
What is the cost of generator in India?
Residential or home generators The price varies from as low as Rs 32,000 for an 850 VA petrol powered generator to Rs 73,000 for a generator with 3 KVA power rating. The price for generators with ratings between 4 and 6.5 KVA varies from Rs 1,01,000 to Rs 1,83,000.
What does a pulse generator do?
A pulse generator is either an electronic circuit or a piece of electronic test equipment used to generate rectangular pulses. Pulse generators are used primarily for working with digital circuits, related function generators are used primarily for analog circuits.
What is TV sweep generator?
A sweep generator is a piece of electronic test equipment similar to, and sometimes included on, a function generator which creates an electrical waveform with a linearly varying frequency and a constant amplitude. Sweep generators are commonly used to test the frequency response of electronic filter circuits.
How much does a vibration sensor cost?
What is the range of vibration sensor?
Industrial vibration sensors are suitable for measuring vibrations at medium strengths. These sensors have a sensitivity of 100 mV/g and their typical frequency band ranges from 1 Hz to 8000 Hz.
What is the acceptable vibration levels in electric motors?
More stringent specifications regarding motor vibration call for maximum velocity levels of 0.1 in./sec on the housing and 1.5 mils of displacement vibration on the shaft.