Ultra Enviro Systems (P) Ltd.

MicroTrap VOD/Data Recorder

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VOD Recording Applications:
1. Records the velocity of detonation (VOD) continuously along the length of columns of explosives loaded into one or several blastholes and records the delay time between decks of explosives if the blastholes are decked.
2. Determines the delay times between multiple blastholes.
3. Records the VOD continuously along the length of a sample of explosives or sample of detonating cord.
Other Recording Applications:
4. Record VOD on the VOD Channel and simultaneously record pressure (or vibration etc.) on optional "Scope" Channels 1 to 4.
5. Use Scope channels without using the VOD channel for any data acquisition application including temperature, strain, vibration, pressure, acceleration or any other signal that has an output within ?0 VDC.
6. Use lower speeds to record longer events in extreme environmental and high-G situations where most data acquisition systems would not survive.
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Users: Mines, Quarries, Blasting Contractors, Explosives Manufacturers, Universities, Government Laboratories, Blasting Consultants. Although designed for the blasting industry, the MicroTrap with Scope Upgrade is a portable, rugged, multi-purpose data acquisiton device suitable for all researchers.
Description: The MicroTrap is the "World's Standard in VOD Recording". It is also the most affordable explosives continuous VOD recorder for testing explosives loaded into one or more blastholes and for testing explosives samples. For explosives samples, the procedure is identical to that for the HandiTrap. For blastholes, within minutes the blaster can tape the end of VOD PROBECABLE or PROBECABLE-LR to the booster and load it into the blasthole, connect the other end of the PROBECABLE with electrical tape to the coaxial signal cable on the cable reel and extend the signal cable to the MicroTrap where it is connected. The MicroTrap can record up to 900 m (3000 ft.) of VOD resistance PROBECABLE-LR per blast - that's a lot of blastholes per test. It can record one or many holes per blast as well as provide the blaster with the delay times between holes, and the delay times between decks of explosives. Before leaving the blast, the Operator turns ON the MicroTrap and presses the START button and leaves the MicroTrap unattended to record the results automatically when the blasthole(s) fires. When the explosives detonates, the MicroTrap automatically records distance and time data - the data are securely stored in the MicroTrap's non-volatile memory. Up to 16 tests can be stored before transferring data to a PC at some later time.
With the optional 4 channel Scope Upgrade, and recording speeds from 1 Hz to 1 MHz per Scope channel, the MicroTrap is suitable for a wide range of data acquisition applications.
The large amounts of data collected by the MicroTrap are quickly transferred to a computer through the LPT printer port or USB port. The MicroTrap Advanced Analytical Software for Windows makes the transfer of data, analysis, graphical presentation, and printing of the results a simple point-and-click operation. The Operator can precisely profile the change in length with time of the VOD PROBEROD (explosives samples) or VOD PROBECABLE (blastholes) as it is consumed in the detonation head. If the Scope channels are used, the Operator can quickly and easily view high resolution voltage data versus time and change the voltage to any engineering units as defined by the Operator using the conversion formula for the gauges that were recorded.
Accessories: Reel-in-a-box of 1000 m (3280 ft.) VOD PROBECABLE for one person loading into one or several blastholes. 0.9 m (3 ft.) long rigid VOD PROBEROD for inserting into an explosives sample. Other gauges including uniaxial velocimeter, airblast and underwater pressure gauges. Coaxial signal cable (RG-58/U) for connecting between the VOD PROBECABLE or VOD PROBEROD or other gauge and the MicroTrap.
Requirements: A PC running Windows '95 or later is required for post-test data transfer, graphical display of time versus distance, voltage, or user-defined units. All software is provided at no additional cost and may be installed on an unlimited number of PCs.