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Vernier Caliper with Parallax Compensation

Featuring a flat vernier scale and a micro-parallax graduation design, it effectively minimizes visual errors, ensuring readings that are both clearer and more accurate.

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Glassware and Measuring Instruments

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lbt@lbt.ltd

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Vernier Caliper with Parallax Compensation

Description

Product Introduction:

Featuring a flat vernier scale and a micro-parallax graduation design, it effectively minimizes visual errors, ensuring readings that are both clearer and more accurate.

The product is crafted from premium stainless steel, offering excellent overall rigidity as well as superior wear and corrosion resistance. Its scale has been precision‑ground for smooth sliding and consistent accuracy. Featuring a micro‑parallax scale paired with a flat vernier design, it enables precise readings even when the line of sight is not perfectly perpendicular, significantly reducing measurement errors caused by human parallax. It provides four‑in‑one functionality—external diameter, internal diameter, step measurement, and depth—and includes a locking mechanism to secure readings, making on‑site inspection and documentation more convenient.

Product Applications:

Suitable for a variety of workshop environments. With excellent overall rigidity, stable accuracy, and comfortable handling, it is a commonly used basic measuring tool in industries such as machining, mold making, hardware, and automotive repair.

Product Features:

1. Micro‑parallax vernier scale for quick and accurate readings.

2 Used for measuring outer diameter, inner diameter, hole depth, and step dimensions.

The 3-foot frame is a closed structure.

Technical Specifications:

Parameter	Specification Description
Range	150
Graduation value	0.05mm
Main material	Stainless steel
Scale craftsmanship	Laser scale
Applicable temperature	0–40℃

The reading principle of a vernier caliper:

The reading mechanism of a vernier caliper consists of a main scale and a vernier scale. When the movable jaws are brought into contact with the fixed jaws, the “0” mark on the vernier scale aligns with the “0” mark on the main scale, at which point the distance between the jaws is zero. As the slide is moved to the left to a specific position, the distance between the fixed and movable jaws corresponds to the measured dimension of the part. The integer portion of the dimension can be read from the main‑scale graduations to the right of the vernier’s zero line, while the fractional part—less than 1 mm—can be determined by reading the vernier scale.

Reading method for a vernier caliper:

The reading of a vernier caliper consists of the integer part in millimeters and the decimal fraction in millimeters. The method for taking the reading is as follows:

(1) Integer part: Starting from the first graduation line on the main scale to the left of the vernier zero mark, read the integer portion in millimeters.

(2) Decimal portion: The decimal part in millimeters is obtained by multiplying the number of scale divisions on the vernier scale that align with a corresponding division on the main scale by the instrument’s least count. If no vernier scale division exactly coincides with a main‑scale division, and the alignment falls between two values—one larger and one smaller—take the average of the two adjacent least‑count readings.

(3) Determine the measured value by addition: Add the integer part of the millimeter measurement to its decimal part; the result is the measured value of the workpiece.

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Customer Reviews

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★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

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Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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Vernier Caliper with Parallax Compensation

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