Home GeoForum Forums GeoMarket - il mercatino dell'usato GeoMarket - Cerco Cerco sismografo per monitoraggi

Cerco strumento per misurare vibrazioni legate ad attività di brillamento presso cava in grado di digitalizzare il segnale sismico/vibrazioni e fornire un flusso continuo di dati campionati a velocità selezionabili. I sensori consistono in un a terna di sensori velocimetrici ad alte prestazioni con frequenza propria nominale 4.5 hz. Configurazione Z, X e Y, banda utilizzabile 0.2-1000 hz, convertitore A/D 24 bit, frequenza campionamento 10-600. Serve inoltre il programma per elaborare i dati vibrometrici in modo da ottenere valori in termini di velocità di vibrazione e frequenza del picco rappresentativo dello scoppio e per poterli confronate con i valori ammssibili negli edifici riportati nella normativa UNi 9916.

Cerchi uno strumento da acquistare?se posso permettermi di darti un consiglio io uso il tromino engy. col programma dedicato.per questo tipo di lavori per me è perfetto.

Ciao,
io possiedo questo modello ti può interessare?






VMS-2000 Series
Blast Monitoring Seismograph
"The New Standard in Vibration Analysis Software"

External Geophone
Battery Charger
Microphone with stand
Seisware analysis software
Soft Carrying Case

VMS-2000 System Features
Computer or Field Programmable
Low Cost and Versatile
Highly Reliable
Microphone with full height stand
Fast Recycle Time
Internal Time and Date
Low Power Consumption
Trigger Mode Operation
External Geophones
Free Seisware Analysis Software
Standard 9-pin RS-232 serial port
Easy to use 4-key switch pad
100 Full Waveform storeage
Store and view last 96 summary events

VMS-2000 Field Operations
The VMS-2000 is configured for operation using the supplied SeisWare program for Windows. The trigger source, trigger level and record time are selected using the SeisWare for Windows Software, and then downloaded to the VMS-2000 unit via the serial port using the included communications cable. The configuration (setup) of the VMS-2000 is stored in non-volatile memory so that the unit can be operated without bringing the PC into a dirty and possible hazardous environment. After connecting the geophone and installing the spikes, turn the VMS-2000 on and press the MONITOR switch. When a vibration or sound land triggers the instrument, the resulting digital data is automatically stored in non-volatile memory on the VMS-2000 and the instrument returns to monitoring the input signals until the trigger level is reached again. After monitoring is finished, press the ENTER key to discontinue monitoring. When convenient, connect the VMS-2000 to your PC and download the data using the Seisware software for permanent storage. The VMS-2000 can also be a stand alone unit, having the ability to recall the last 96 events.

Technical Specifications
System

Display: 4 line by 20 columns LCD
Resolution Seismic: 0.0050/in/s (0.127 mm/s); Acoustic: 1 dB
Sample Rate: 1024 Samples per Second
Frequency Responses: 2 to 250 Hz
Geophone: Triaxial, 4.5 Hz Natural Frequency
Microphone: Ceramic, 5 ft (1.5 in) Neoprene Cable
Operations

Units of Measure: English or Metric

Seismograph Operation:

Trigger Source Geophone or Microphone
Trigger Level: GEO .02 - 2.00 in/s (.51-50.8mm/s)
Trigger Level: MIC 100, 105, 110, 115, 120, 125, 129dB
Range: Full Autoranging
Seismic: 0.00-9.00 in/s (0-228.6 mm/s)
Acoustic: 86-141 dB (re 2.9 x 10psi)
Modes: Multiple Event ( with Full Waveforms)
Record Time: 1 to 10 seconds in ls increments, plus 0.5s Pre-trigger
Environmental: Operation Temperature Range: -15c to +50c
Physical Dimensions:
L 9.3 in. x W 7.2 in. x D 4.1 in.

L23.6 cm x W 18.3 cm x D 10.5 cm)

riccimaurizio@libero.it

per contattarmi