Posts Tagged ‘seismometer’

RespGen Released

RespGen Released

Hi all: You have not heard much from us lately because we have been working hard to make new products like RespGen, an instrument response generator. We designed RespGen as a tool to allow instrument manufacturers and network operators to easily determine the instrument response of any […]

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Galperin v. Classical Seismometers

Galperin v. Classical Seismometers

Broad band seismometers come in two different flavors: Classical (XYZ) and Galperin (UVW). You can think of a Galperian seismometer as a classical triaxial seismometer that has been tilted at 54.7 degrees from vertical. Imagine an XYZ-axis balanced on its corner. Two weeks ago (see What is […]

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Equipos período corto y banda ancha comparados

Equipos período corto y banda ancha comparados

Estimados colegas: Muchos personas me han preguntado, “Cómo está el comportamiento de los sismometros de período corto fabricado por OSOP comparados con otros sismometros buenos de banda ancha como el Nanometrics Trillium Compact?” Siempre respondo que la Sixaola y Darien tienen la misma comportamiento adentro de 1 […]

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Finding North: 1/3 the battle

Finding North: 1/3 the battle

Common sun-based techniques for discovering true (astronomical) north include: The sun shot theodolite telescope method The shadow tip orientation method But beware, blindness is a high price to pay for superior SKS-splitting results ;): If the sun is not cooperating, you can always find true north using: […]

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Paper Seismograph

Paper Seismograph

DENSITY MATTERS SHORT PERIOD SEISMOMETERS IMPROVE SPEED & ACCURACY For as long as seismologists can remember They have spent fortunes on Ever-broader broadband seismometers. This drained budgets and kept coverage low. No longer. With the newest version of the Darien strong motion seismometer, You can install 50 […]

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What’s inside a Lennartz 3D-Lite

What's inside a Lennartz 3D-Lite

“PLEASE, BY ALL MEANS RESIST THE TEMPTATION OF OPENING THE SENSOR! As we have stated previously, there are (very literally!) no user serviceable parts inside, and you will only make things worse. Once the sensor has been opened, the average user is unable to reseal the sensor […]

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The Mother of All Seismometers

The Mother of All Seismometers

Last week Richard and I traveled to Martinique for a meeting of a Caribbean seismic and tsunami monitoring group (the CARIBE-EWS WG1). The planning meeting was led by Jean-Marie Saurel of the Martinique Volcano Observatory (OVSM). After the meeting Jean-Marie invited us to visit the observatory. And […]

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What’s Inside the 21 ton Quervain-Piccard Seismograph

What's Inside the 21 ton Quervain-Piccard Seismograph

Click on the images below to see them at full scale. For all of the details see: de Quervain, A. & Piccard, A., 1924. Beschreibung des 21-Tonnen-UniversalSeismographen System de Quervain – Piccard, Jahresber. Schweiz. Erdbebendienst de Quervain, A. & Piccard, A., 1927. Déscription du séismographe universel de […]

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GPS versus NTP timing- splitting hairs?

GPS versus NTP timing- splitting hairs?

If not, can someone help me better understand how accurate digitizer sampling has to be? I have been working on making a seismometer that meets a bunch of specs and one of the specs is that the timing accuracy of the instrument was to be sub millisecond. […]

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This is what I want

This is what I want

Hi Everyone, I just came back from the IRIS instrumentation workshop- A meeting between the users and makers of geophysical instrumentation. I was impressed by two of the presentations. One left a positive impression and one was a negative impression. The negative one first. It was a […]

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Broadband seismometers & local monitoring

Broadband seismometers & local monitoring

Every seismic observatory should have a few broad bands, they are truly things of wonder. Works of art. The Cadillacs of the seismic world. But having too many broad bands is counterproductive to real-time monitoring. Like driving a Hummer in an urban setting, painting your nails before […]

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How to buy a Seismometer, Part 1

How to buy a Seismometer, Part 1

I see it every day.  Observatories need to expand their network and get some money to buy instruments.  They all want broadbands and they all want the iconic Streckeisen STS-2.  The broadband that started it all.  This instrument will solve all of their problems. No matter that […]

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El Titan SMA de OSOP está en liña!

El Titan SMA de OSOP está en liña!

Buenos días. OSOP ha instalado un acelerometro Titan SMA de Nanometrics en su oficina. Para ver las trazas en tiempo real y jugar con la interface web del TitanSMA, visítanos en TitanSMA En nuestra opinión si tuvieramos que escojer solo un instrumento sismológico hoy en día sería […]

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What’s Inside a Geophone?

What's Inside a Geophone?

The geophone is an ingenious but simple device common to most seismic instruments. In this Seismo Guys video, I cut a geophone open and take a look inside: For pictures of the insides of a geophone, see the What’s Inside a Geophone photos page –Branden

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Advertised and Effective Bits: Don’t Be Fooled

Advertised and Effective Bits: Don't Be Fooled

Hello from the Seismo Guys in Panama. Today we open a discussion on 24-bit digitizers. Nowadays, seismologists are OBSESSED with 24-bits. But we find that few seismologists understand the reason for their obsession and even fewer know the right questions to ask manufacturers. We hope the Seismo […]

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What’s inside an STS-2 Seismometer? Ants!

What's inside an STS-2 Seismometer? Ants!

I am starting a new section on the OSOP page. It will be called What’s Inside. It will mostly be seismometers but surely not limited to that. You just never know that the things you learn dissembling that Mikrotik Groove radio will come in handy when you […]

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Borehole Seismometer Update: El SONDI ha llegado

Borehole Seismometer Update: El SONDI ha llegado

Buenas tardes. Me complace en anunciarles que el Sismómetro SONDI de IESE nos llegó y está presente en el warehouse de la ACP, listo para instalar. La perforación del pozo ha alcanzado hasta hoy día 50 metros de profundidad. – Branden

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My $70,000 thermometer

My $70,000 thermometer

For those interested in studying the earth modes, teleseismic events, volcanic slugs and other “VLP” events, properly insulating your broadband against thermal fluctuations is easy. Let’s take the Nanometrics Trillium Compact as an example. This beer can-sized broadband unit has little mass and no thermal insulation. When […]

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OSOP Donates 8 Seismometers to Peace Corps Project

OSOP Donates 8 Seismometers to Peace Corps Project

This past week, OSOP hosted Greg Waite, a seismology professor from Michigan Technological University in Houghton, MI. The purpose of Greg’s visit was to support his student Chet Hopp, a graduate student in seismology at MTU, who is currently living and working in Panama as a Peace […]

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