We offer a wide range of Electro Dynamic Vibration Test System from +/-10 Kgf to +/-5000 Kgf force for every imaginable application in vibration simulation. The MEV series of Vibration Test System overcomes the limitations of inability to simulate the entire frequency range of the vibration environment.

The series of MEV vibration systems are the result of long experience in the designing and manufacturing of test systems. The principle that make MEV test system flexible and versatile is the use of close loop control. It provides the exciter with a control signal, which is changing in frequency between certain limits aat a pre-determined sweep rate. The signal is automatically adjusted to maintain a constant vibration level at the frequencies. This is achieved by using a control accelerometer mounted on exciter table in servo loop to provide a feed back signal to the controller. The difference between the command and input signal is used to continuous correction signal to the vibration. The flexibility and precision control provided by the close loop technique allow the user to determine/simulate the vibration environment quite accurately.

Application Areas:

• Determination of product's structural integrity
• Vibration Sensor Calibration
• Qualification Test
• Endurance Test
• Seismic Study
• Fatigue Test

Salient Features:

• Heavy Duty Rolling Struct/Link Arm Armature Suspension System
• Extensive Interlock & Protective Circuitry
• Excellent Cross-axial Restraint System
• Low Frequency Isolation
• Dual Suspension System
• Lowest Acoustic Noise
• High Lateral Stiffness
• Long Term Reliability
• Wear Tear Proof

• User Friendly Windows Based Software
• Most Flexible Test Reports
• Higher Control Accuracy
• Faster Loop Time
• Precise Control
• Soft Start & Shut Down
• Wide Dynamic Range
• Password Protection
• Outstanding Safety
• Off Line Analysis

The “MICRON” make “High Speed Centrifuge Machine” is most suitable for high speed acceleration testing of various components specifically semi conductor/electronic miniature components, IC’s etc. The machine is designed to test such components in X, Y & Z direction by suitable placement of the fixture as per MIL standard.

Micron make Bump Testing Machine is a versatile test equipment to carry out Shock/Bump tests in accordance with section of JS55555 anad other relevant Defence standards. The machine is used for production qualification testing, transient analaysis of structures or models and fatigue tests on sub-systems and parts with an object to determine their suitability under repetitive Shock/Bump environment (during transportation or in-service etc.) and to assess their structural integrity.
The machine is fabricated with welded steel of sufficient rigidity to provide necessary mechanical strength. The table (platform) is lightweight, made of special alloy and having threaded holes at regular pitch to mount test objects. A provision is made to adjust the drop height by special electro-mechanical/pneumatic arrangement between table and elastomeric pad. In order to achieve desired pulse duration, elastomeric pads of suitable Bump rate. A digital counter is provided to count the nos. of Bumps and run the machine for specified time (Bump counts) in manual and controlled mode of operation. The nos. of Bumps can be set on the settable counter.
The Bump Test Stand is supported with Pentium PC Based Intelligent Instrumentation front-end to monitor and analyze acquired acceleration waveform. A piezoelectric accelerometer is used as a sensor for this purpose. The accelerometer has built in electronics, which converts the mechanical Bumps to the electrical pulses. These pulses are filtered in signal conditioner to eliminate unwanted harmonics. The processed signal is digitized, scaled and displayed on 19"/21" TFT colour monitor. The acceleratin level and time duration are automatically calculated and displayed. Facility of controlled zero interception (programmable cursor approach) is provided to calculate more accurate time duration. The measured data can be sent to a standard Centronics compatible printer. The unit operaates on 415 +/-10%, 50 Hz A.C.

Salient Features :

•  Heavy duty structure
•  Adjustable drop height
•  Programmable Bump repetition rate
•  Compliance with JS55555, MIL-STD-810E and
    other relevant Defence Standards
•  PC Based Instrumentation for waveform analysis
   and monitoring

Micron MICROLOG-6100 Series of "Data Acquisition System" is designed with latest art of technique. It is avaialable in different basic configurations to suit a variety of different applications depending upon measurement problems. The system accepts various kinds of transducers directly without any need of external signala conditioning amplifiers.
MICROLOG-6100 Series is designed with completely modular concept to enhance the system relaibility, easy expandability, easy maintenance and low MTBF.

Because of it's high degree of flexibility and versatility, MICROLOG-6100 is the perfect Dataa Acquisition and Control System for a wide variety of Research, Industrial anad Field applications.
The system can be optimized for a particular application very easily and comfortably at the user's end.

The system can also be designed for a dedicated application, through suitable software in addition to its standard features.

System Configuration

Micron MICROLOG-6100 Series of "Data Acquisition System"  is available in main frame of 8/10/16/32 channels having expandability upto 256/1000 channels through modules of 8/10/16/32 channels. System can be designed for a variety of combination of main frame and extender modules depending upon user applications.
In "Stand Alone Mode" system is programmable through front panel key boards and "On Line Data" can be stored, printed or transferred to any computer through RS-232C interface.

The unit also incorporates necessary scaling engineering unit conversino and different data manipulation to provide an exact replica of input parameters by printing the data in engineering units. The system uses very precise digital voltmeter incorporating latest 12 Bit/16 Bit/4-1/2 digit A/D converter for data digitization.

For real time analysis the unit incorporates highly stabilized digital control calender clock for print-out of time in Hrs., Mints., Secs., Month, Date, yeaar etc. Unit also incorporates security electronic lock to prevent unauthorized and accidental mishandling.

The DXL & DXN Series Displacement Transducers, combine rugged construction and high performance required for industrial and engineering application. These are based on the principle of Linear Variable Differential Transformer (LVDT). The LVDT coils are wound on nylon, fiber former, housed within a stainless steel case. Its epoxy bonding and vaccum impregnated construction makes the device suitable for operating in wet or oily environments and in application where high levels of mechanical stress (Vibration, Shock etc.) are encountered. The armature assembly is allowed friction free movement within the sensor.

Strain Gauge Based Displacement Transducers

Series DXS is based on the principle of gauge bonded to a specially designed element which senses the displacement. It is useful in measurement of Crack Displacement, Bore Hole Extensometer. It is also most suitable for dynamic measurement. This is available from 1mm to 200 and beyond, on special application.

Salient Features :

•  High Sensitivity
•  Excellent Linearity
•  Rugged Construction
•  Small Size

Applications :

•  Linear Displacement Measurement
•  Load and Creep Measurement
•  Electronic Extensometer
•  Electronic Bore Hole Extensometers
•  Feed Back Control System
•  Laboratory Use
•  Crack Displacement Measurement

The CSF & USF series of Load Transducers employ foil strain gauges bonded to the load coloumn. The transducer consists of one piece body machined from special steel, heat treated for maximum stability. The design ensures high inherent linearity whilst maintaining low creep and good ultimate safety factors.

Salient Features :-

• Rugged & Sturdy
• Long Term Reliability
• Small Size
• Excellent Performance  
• Dust & Moisture Proof

Applications :-

•  Load measurement of reinforced rods and guy 
   ropes of reinforced concrete structures.
•  Load or force measurement due to compressive 
   force of pillars in structures and mines, ribs of 
   tunnel supports.
•  Force measurement in rolling mills

These Load Transducers are available in different forms ranging from 1 Kg to 500 tonnes.

COMPRESSION GENERAL PURPOSE

• Series : CSF-L-Low Range 1 Kg to 10 Tonnes
• Series : CSF-M-Medium Range 11 T to 50 Tonnes
• Series : CSF-H-High Range 51 T to 500 Tonnes
• Series : CSF-MP-Medium Range Compression High       Performance

TENSION/COMPRESSION (UNIVERSAL) GENERAL PURPOSE

• Series : USF-L-Low Range Compatible
• Series : USF-M-Medium Range Compatible
• Series : USF-H-High Range 

The PSW & PSH series Pressure Transducers employ full strain gauges bonded to the pressure sensitive diaphragm. The transducer is a one body piece machined from special steel heat treated for maximum stability. The design ensures high inherent linearity whilst maintaining low hysteresis and good ultimate safety factors.

The design uses a full bridge strain gauge configuraation giving a nominal output of 1-2mV/V at rated pressure.

Applications :

These transducer are well suited for static as well as dynamic pressure measurement in pipe lines, hydraulics, pore pressure, soil pressure and embedment type application in Engineering applications.

Salient Feature :

•  High Linearity
•  Wide Dynamic Range
•  Excellent Repeatability

Digital Strain Indicator, Model DA05A features the unique combination of high resolution with ultra precision, making it a valuable tool for engineers and scientists. The unit accepts strain gauge bridge and strain gauge based transducers in a variety of configurations. The analog and digital outputs enable the user to interface with other equipments such as meters, recorders, printers making it a more complex system.

Salient Features:

• Ultra precision
• Research quality
• Industrial durability
• Sensible price
• Compact & rugged construction
• Low noise drift free auto zero amplifier
• Oscilloscope jack for dynamic strain
• measurement
• Fine grade components
• Adjustable gauge factor

Specifications

• Display : 4½ digit LED/LCD
• Measuring Range : ±19999 Micro strain
• Resolution : 1 Micro strain
• Input : Quarter, Half & Full bridge selectable
• Dummy : 120, 350, 600 ohm installed inside
• Transducer Excitation Voltage : (a) 4.5 VDC (b) 2 to 10 VDC (Optinal)
• Gauge Factor : Adjustable from 1 to 10
• Bridge Balancing : Coarse & fine balance 10 turn potentiometer with lock nut
• Calibration : Single/Double shunt across the bridge
• Accuracy Class : 0.05
• Temperature Drift : 0.1 Micro volt/oC to 50oC
• Analog Output : 2 V F.S.
• Frequency Response of Analog O/P : DC to 1 Khz
• Noise : 0.05% F.S. PP
• Power Source : 2220 V ±10%, 50 Hz

Digital Indicators, are truly portable, high resolution and accurate indicating system, which displays the signal voltage of measuring transducers operating on the principle of strain gauge based Pressure Cells, Load Cells, LVDT Displacement Transducer etc. They are available in 3-1/2 / 4-1/2 digit display and also in Universal Mode for measurement of various combination of sensors and parameters.

The analogue and digital outputs enable the user to interface with other equipments such as Meters, Recorders, Printers or Mini computers making a more complex system.

Salient Features:

• Highly Accurate
• Truly Portable
• Long Term Stability
• Battery/Intrinsically Safe Operation

The system consists of :-

1. Mechanical Oscillator
2. DC Motor
3. Thyristorised Speed Control Unit
4. PC Based Soil Data Logger
5. Digital Phase Meter
6. Digital Refraction Seismic Timer
7. Geophone

Mechnical Oscillator

Mechanical Oscillator Series MX-00A is highly rugged and compact unit designed as per IS:5249 to generate high level dynamic forces for varying amplitude. The unit is capable of running at very high speed, yet maintaining its own balance perfectly. The unit is suitable for determination of dynamic properties of soil and structures.

Thyristorised Speed Control Unit
Thyristorised Speed Control Unit has specifically been designed to run variable speed motors from min. to max. rpm value. It is also used as a starter for these motors for giving protection to the motor and objects connected. A protection is provided to the field and armature by an interlock relay as a safety provision to the rectifiers in the speed control unit also. The motor operatin is protected  with the help of 'Line Failure Protection Relay' and 'Over Load Protection Relay' provided in case of power failure and continuous overload, respectively. Apart from all aforesaid protections and facilities, adequate electrical insulation and moisute protection are also provided.

PC Based Soil Data Logger
PC Based Soil Data Logger is designed with latest art of technique. Soildata 5100-S is specially designed to determine the various coefficients of the soil. An efficient design and most economic construction of foundation of various types involve the accurate determination of dynamic properties of soil "in situ". Instrument employ latest state of art technology to acquire data from the acceleration sensor during a block vibration test as described in IS:5249 (Method of Test for Determination of In-situ Dynamic Properties of Soils). Soil Data 5100-S is only required to conduct the vertical and horizontal block vibration tests as IS:5249.

Digital Phase Meter
Digital Phase Meter is a light weight main power versatile instrument which can be used to find the phase difference between two signals. It is truely portable, high resolution and accurate indicating system which displays the phase difference between the two incoming signals. The phase difference measured will be in degrees. The front panel consists of a 3 digit LCD display to give a phase difference ranging from 0 - 360 degrees.

Digital Refraction Seismic Timer
Digital Refraction Seismic Timer is truely portable timing out to be used with Geophones for measurement of transit time of shock waves between two points on earth surface. There are two transducers used alongwith the timer. One transducer senses the start of the wave and which in turn starts the timer and the other transducer which senses the arrival of the wave stops the timer.

Geophone
Geophone is specially designed with the latest art of technique to ensure accurate, reliable operation even in a work horse for Velocity, Ground Vibration Measurement encountered in Civil, Mechanical Engineering Based on the Electro Dynamic principle.

Right from the beginning, we are engaged in design, development, fabrication, supply and installationof fully indigenous and highly sophisticated Electrical/Electronic/
Electro-mechanical instruments/
Equipments/Power Systems in high tech area thereby production high quality and performance "Import Substitutes", catering to the needs of Indian Railways.

We have been suppling the following equipments to Indian Railways :-

1.  Vaccum Circuit Breaker Analyser/
     Testing Kit
2.  Frequency Regulators
3.  Voltage Regulators
4.  Electronic Emeregency Light Relay
5.  PAS Power Amplifier

Vaccum Circuit Breaker Analyser/
Testing Kit
VCB Testing Kit is a portable and highly advanced PC Based System for checking the health of all Single and Double Bottle VCB being used by Indian Railways in different Loco's. A complete record of various parameters of VCB's can be saved and stored in PC's.

Frequency Regulator
A highly advanced IGBT Based Frequency Regulators are available for control of the speed of the MA Set being used in WCG2 and other loco's being operarted by Central & Western Railways. These have been designed and are being supplied as a substitute of GEC-UK FR's.

Voltage Regulator
Votage Regulators have been designed to regulate the output voltage of a motor generator set used in DC EMU of Indian Railways operating on 1500 V DC. The regulator controls the field excitation of both the motor and the generator and maintain the generator output. The regulator is designed, based on proven switching technique to achieve a high degree of efficiency, greater than 90%. Third generation semiconductors & integrated circuits suitable to use in locatino even where the ambient temperature variation is high. The circuit incorporates advance Isolated Voltage Sensors, Comparators, PI Amplifiers, Switching Circuits that vary the ON-OFF ratio of the switching circuit controlling the field currents and control power supply. 

Electronic Emergency Light Relay
Electronic Emergency Light Relay is designed with latest technique as per RDSO Specification No. ELPS/SPEC/EMU/01. Radiation hardened components of industrial and MIL grade has been incorporatd to achieve maximum MTBF. Utmost care has been taken in designing the Electronic Emergency Light Relay incorporating redundancy. A built-in watchdog takes care of the health of the control circuit and warns audio visually if there is any abnormal operation. A flag output is also provied extra for latest microprocessor control of EMU's and can be interfaced if required. A built-in switching power supply is provided having wide ranage of 70 V to 140 V for working of the internal circuit. This saves the power and also provides stable performance over wide temperature range of operation. All components have been selected to work in rolling stock environment.